3Com Switch 4510G Family
Getting Started Guide
Manual Version: 6W100
3Com Corporation
350 Campus Drive, Marlborough,
MA, USA 01752 3064
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About This Manual
Organization
3Com Switch 4510G Family Getting Started Guide is organized as follows:
Chapter
Contents
Briefly introduces the appearance, system description, as well as
the features and applications of the 3Com Switch 4510G Family.
1 Router Overview
Describes the requirements on installation site, the safety
recommendations before and during installation, and the required
tools.
2 Preparing for Installation
3 Installing the Switch
Covers the procedures for installing the 3Com Switch 4510G
Family, ground wire connection, power module installation,
interface module installation, and so on.
Helps you get familiar with the basic knowledge of how to boot and
configure the 3Com Switch 4510G Family, including device
startup, power-on, and initialization of system files, and so on.
4 Starting and Configuring the
Switch
Introduces how to load Boot ROM and host software for the
3Com Switch 4510G Family.
5
Boot ROM and Host
Software Loading
Introduces the problems that might occur during the installation
and the booting of the 3Com Switch 4510G Family and the related
solution.
6
Maintenance
and
Troubleshooting
Conventions
The manual uses the following conventions:
Command conventions
Convention
Description
Boldface
italic
The keywords of a command line are in Boldface.
Command arguments are in italic.
[ ]
Items (keywords or arguments) in square brackets [ ] are optional.
Alternative items are grouped in braces and separated by vertical bars.
One is selected.
{ x | y | ... }
[ x | y | ... ]
{ x | y | ... } *
[ x | y | ... ] *
Optional alternative items are grouped in square brackets and
separated by vertical bars. One or none is selected.
Alternative items are grouped in braces and separated by vertical bars.
A minimum of one or a maximum of all can be selected.
Optional alternative items are grouped in square brackets and
separated by vertical bars. Many or none can be selected.
The argument(s) before the ampersand (&) sign can be entered 1 to n
times.
&<1-n>
#
A line starting with the # sign is comments.
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GUI conventions
Convention
Description
Window names, button names, field names, and menu items are in
Boldface. For example, the New User window appears; click OK.
Boldface
Multi-level menus are separated by angle brackets. For example, File >
Create > Folder.
>
Symbols
Convention
Description
Means reader be extremely careful. Improper operation may cause
bodily injury.
Means reader be careful. Improper operation may cause data loss or
damage to equipment.
Means an action or information that needs special attention to ensure
successful configuration or good performance.
Means a complementary description.
Means techniques helpful for you to make configuration with ease.
Related Documentation
In addition to this manual, each 3Com Switch 4510G documentation set includes the following:
Manual Description
3Com Switch 4510G Family Describe how to configure your 4210 Switch using the supported
Configuration Guide protocols and CLI commands.
3Com Switch 4510G Family Provide detailed descriptions of command line interface (CLI)
Command Reference Guide
commands, that you require to manage your switch.
Obtaining Documentation
You can access the most up-to-date 3Com product documentation on the World Wide Web at this URL:
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Table of Contents
1 Product Overview ······································································································································1-1
Overview ·················································································································································1-1
Introduction to Switch 4510G··················································································································1-2
Switch 4510G 24-Port ·····················································································································1-2
Switch 4510G 48-Port ·····················································································································1-3
Ports························································································································································1-4
Console Port····································································································································1-4
10/100/1000Base-T Ethernet Port···································································································1-4
SFP Port··········································································································································1-5
Combo Port ·····································································································································1-5
LEDs························································································································································1-6
System Status LED ·························································································································1-6
RPS Status LED······························································································································1-6
Port Mode LED································································································································1-7
Seven-Segment LED·······················································································································1-7
SFP Port Status LED·······················································································································1-9
Interface Module Status LED ··········································································································1-9
Optional Interface Modules·····················································································································1-9
Dual-Port 10 GE SFP+ Interface Module······················································································1-12
Description of LEDs of Interface Modules·····················································································1-14
2 Preparing for Installation··························································································································2-1
Safety Precautions··································································································································2-1
Installation Site········································································································································2-1
Temperature/Humidity·····················································································································2-2
Cleanness········································································································································2-2
Electromagnetic Susceptibility·········································································································2-2
Laser Safety ····································································································································2-3
Installation Tools ·····································································································································2-3
3 Installing the Switch··································································································································3-1
Installation Flow of the Switch·················································································································3-1
Introduction to Mounting Bracket·····································································································3-2
Mounting the Switch on a Workbench ····································································································3-4
Connecting the Grounding Cable············································································································3-4
When a Grounding Strip is Available·······························································································3-4
In Other Installation Sites ················································································································3-6
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Connecting the Power Cords··················································································································3-7
Connecting the AC Power Cord ······································································································3-7
Connecting the RPS Power Cord····································································································3-9
Installing an Interface Module·················································································································3-9
Installing an Interface Card ···········································································································3-10
Removing an Interface Module ·····································································································3-10
Installing Switches for an IRF ···············································································································3-12
Installation Flow for an IRF············································································································3-12
Verifying the Installation························································································································3-16
4 Starting and Configuring the Switch ·······································································································4-1
Setting up the Configuration Environment······························································································4-1
Connecting the Console Cable ···············································································································4-1
Console Cable·································································································································4-1
Connection Procedure·····················································································································4-2
Setting Terminal Parameters ··················································································································4-2
Booting the Switch ··································································································································4-5
Powering on the Switch···················································································································4-5
Changing the Startup Mode ············································································································4-7
5 Boot ROM and Host Software Loading ···································································································5-1
Introduction to Loading Modes················································································································5-1
Boot Menu ·······································································································································5-1
Loading Software Through CLI·············································································································5-12
Loading Software Using FTP ········································································································5-12
Loading Software Using TFTP ······································································································5-13
6 Maintenance and Troubleshooting··········································································································6-1
Software Loading Failure························································································································6-1
Password Missing Failure·······················································································································6-1
Missing User Password···················································································································6-1
Missing Boot ROM Password··········································································································6-1
Power Supply Failure······························································································································6-2
AC input···········································································································································6-2
RPS input ········································································································································6-2
RPS&AC input·································································································································6-2
Fan Failure··············································································································································6-3
Configuration System Failure··················································································································6-4
Troubleshooting when there is no terminal display·········································································6-4
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1
Product Overview
Overview
3Com Switch 4510G Family (hereinafter referred to as the Switch 4510G ) are Layer 3 Gigabit Ethernet
switching products developed by 3Com Corporation. (Hereinafter referred to as 3Com).
The Switch 4510G are designed as distribution or access devices for intranets and metropolitan area
networks (MANs). Supporting IPv4/IPv6 dual stack and 10 GE uplink interfaces, the Switch 4510G
provide abundant service features and can also be used for connecting server groups in data centers.
The Switch 4510G support the 3Com-specific cluster management function, which facilitates your
network management. And they also support the Intelligent Resilient Framework (IRF) technology. You
can connect multiple 4510G switches through 10 GE ports to form a logical entity, thus to establish a
new intelligent network with high reliability, expandability and manageability.
Table 1-1 System specifications of the Switch 4510G
Item
Switch 4510G 24-Port
Switch 4510G 48-Port
Physical dimensions 43.6 × 440 × 300 mm
(H × W × D)
Weight
(1.72 × 17.32 × 11.81 in.)
<4.4 kg (9.70 lb)
<4.7 kg (10.36 lb)
Management port
One console port, on the front panel
24 × 10/100/1000Base-T
auto-sensing Ethernet port
48 × 10/100/1000Base-T
auto-sensing Ethernet port
4 × 1000Base-X SFP port
4 × 1000Base-X SFP port
Fixed GE ports (on
the front panel)
The last four 10/100/1000Base-T Ethernet ports and the four SFP ports
comprise four Combo ports.
: For each Combo port, either the SFP port or the corresponding
Ethernet port can be used at a time. For details about the combo port
2, on the rear panel
Interface card
models supported
(optional)
z
z
z
z
Short-haul dual-port 10GE CX4 interface module (3C17767, support IRF)
Dual-port 10 GE XFP interface module (3C17766, support IRF)
One-port 10 GE XFP interface module (3C17768, support IRF)
Dual-port 10 GE SFP+ interface module (LSPM2SP2P, support IRF)
1 AC power socket and 1 RPS power socket
Power socket types
and quantity
: The two power inputs can be simultaneously used, acting as
backup for each other. Alternatively, you can use either power input.
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Item
AC
Switch 4510G 24-Port
Switch 4510G 48-Port
Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz
Input voltage range: 90 VAC to 264 VA.C, 47 Hz to 63 Hz
Rated voltage range: 10.8 VDC to 13.2 VDC
Input
voltage
Adopts RPS500-A3 using its +12 VDC/10.5 A output and the cable suite of
0404A03C
RPS
: Please use the external RPS power supply units recommended
by 3Com only.
Static power
consumption
36 W
55 W
Power consumption
(full load)
103 W
145 W
Cooling system
Four fans for heat dissipation
0°C to 45°C (32°F to 113°F)
Operating
temperature
Relative humidity
(noncondensing)
10% to 90%
For details about the external RPS power supply units, see the RPS500-A3 User Manual.
Introduction to Switch 4510G
Switch 4510G 24-Port
Front Panel
Figure 1-1 Front panel of the Switch 4510G 24-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) 1000 Base-X SFP port
(5) Console port
(4) 1000Base-X SFP port status LED
(6) Seven-segment LED
(7) Port mode LED (Mode)
(9) RPS status LED (RPS)
(11) Interface module 2 status LED (MOD2)
(8) System status LED (PWR)
(10) Interface module 1 status LED (MOD1)
(12) Port status LED mode switching button
1-2
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Rear Panel
Figure 1-2 Rear panel of the Switch 4510G 24-Port Ethernet switch
(1) AC power input
(3) Grounding screw
(2) RPS power input (shipped with a protective cover)
(4) Interface module slot 1 (MOD1)
(5) Interface module slot 2 (MOD2)
The Switch 4510G 24-Port provides two interface module slots on its rear panel. Each slot is installed
with a filler panel when the switch is shipped. You can select one or two interface modules for your
supported by the Switch 4510G, and see Installing an Interface Module on page 3-9 for the installation
of interface modules.
Switch 4510G 48-Port
Front Panel
Figure 1-3 Front panel of the Switch 4510G 48-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) Console port
(4) Seven-segment LED
(5) Port mode LED (Mode)
(7) RPS status LED (RPS)
(9) Interface module 2 status LED (MOD2)
(11) 1000 Base-X SFP port
(6) System status LED (PWR)
(8) Interface module 1 status LED (MOD1)
(10) Port status LED mode switching button
(12) 1000Base-X SFP port status LED
1-3
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Rear Panel
Figure 1-4 Rear panel of the Switch 4510G 48-Port Ethernet switch
(1) AC power input
(3) Grounding screw
(2) RPS power input (shipped with a protective cover)
(4) Interface module slot 1 (MOD1)
(5) Interface module slot 2 (MOD2)
The Switch 4510G 48-Port provides two interface module slots on its rear panel. Each slot is installed
with a filler panel when the switch is shipped. You can select one or two interface modules for your
supported by the Switch 4510G, and see Installing an Interface Module on page 3-9 for the installation
of interface modules.
Ports
Console Port
Each Switch 4510G provides one console port on the front panel. Table 1-2 describes the console port
specifications.
Table 1-2 Console port specifications
Item
Specification
Connector type
RJ-45
Compliant standard
Transmission baud rate
EIA/TIA-232
9600 bps to 115200 bps (defaulting to 19200 bps)
z
z
It can be connected to an ASCII terminal.
It can be connected to a serial port of a local or remote (through a
pair of modems) PC running terminal emulation program.
Service
10/100/1000Base-T Ethernet Port
the specifications of the 10/100/1000Base-T Ethernet ports.
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Table 1-3 10/100/1000Base-T Ethernet port specifications
Item
Specification
Connector type
RJ-45
z
z
z
z
10 Mbps, full duplex
100 Mbps, full duplex
1000 Mbps, full duplex
MDI/MDI-X, auto-sensing
Interface standard
Max transmission distance 100 m (328.08 ft.)
Transmission medium
Standard
Category-5 unshielded twisted pair cable
IEEE 802.3i, 802.3u, 802.3ab
SFP Port
The SFP ports on the front panel of Switch 4510G supports fiber Gigabit Ethernet long-wave (LX),
long-haul (LH70) and copper (T), 100BASE-LX10, and 100BASE-FX transceivers in any combination..
All SFP transceivers are hot swappable and optional. Therefore, networking is more flexible.
z
z
You are recommended to use SFP transceivers of 3Com on the Switch 4510G.
The types of SFP transceivers may update with time. For information about transceivers, contact
3Com technical support or marketing staff.
Combo Port
One SFP port and the corresponding 10/100/1000Base-T Ethernet port form a Combo port. For each
Combo port, either the SFP port or the corresponding 10/100/1000Base-T Ethernet port can be used at
Table 1-4 Combo port mapping relationship
Model
SFP port
10/100/1000Base-T Ethernet port
22
25
26
27
28
49
50
51
52
24
21
23
46
48
45
47
Switch 4510G 24-Port
Switch 4510G 48-Port
1-5
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The SFP port and its corresponding 10/100/1000Base-T autosensing Ethernet port cannot be used
together at the same time. For details, refer to the Ethernet Port Configuration part in the Access
Volume of the 3Com Switch 4510G Family Configuration Guide.
LEDs
Table 1-5 LEDs
LED
Device support
All series
All series
All series
All series
All series
All series
All series
System Status LED
The system status LED helps you determine the working status of the switch. Refer to Table 1-6 for the
details.
Table 1-6 System status LED description
LED
Status
Steady green
Description
The switch is started normally.
The system is performing power-on self test (POST).
POST failed.
Flashing green (1 Hz)
Steady red
PWR
Flashing yellow (1 Hz)
Off
POST on some ports failed.
The switch is powered off.
RPS Status LED
1-7 for details.
1-6
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Table 1-7 RPS status LED
LED
Mark
Status
Description
The AC input is normal, and the RPS is in the
position or works normally.
Steady green
RPS status LED
RPS
The RPS input is normal, but the AC input fails or
is not connected.
Steady yellow
Off
RPS is not connected.
Port Mode LED
The port mode LED on the Switch 4510G can display the working status of a port for you to obtain more
device information. You can use the port mode switching button to change the status of the port mode
LED.
Table 1-8 Port mode LED description
LED
Mode
Status
Description
Indicates port rate.
Indicates port duplex mode.
Steady green
Steady yellow
Seven-Segment LED
The seven-segment LED and the system status LED together indicate the operating status of the
Table 1-9 Seven-segment LED description (1)
Status
System status
LED
LED
Description
Seven-segment LED
(PWR/SYS)
The LED displays the specific numbers
one by one.
POST running. The LED
displays the POST test ID.
Unit
Flashing green
Flashing red
The LED flashes the specific numbers.
POST failed. The LED flashes
the POST test ID of the failed
test.
A bar rotates clockwise around the
LED.
Flashing green
Steady red
Software loading
Fan failure
The LED flashes F.
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Status
System status
LED
LED
Description
Seven-segment LED
(PWR/SYS)
The LED flashes t.
Steady red
Over-temperature alarm
The LED displays C.
The current switch is the
command switch in the cluster.
The LED displays S.
The current switch is a member
switch in the cluster.
Steady green
The LED displays c.
The current switch is a
candidate switch in the cluster.
The LED displays the specific numbers.
The member ID of the current
switch in the IRF system.
10/100/1000Base-T Auto-Sensing Ethernet Port Status LED
The port mode LED and the 10/100/1000Base-T auto-sensing Ethernet port status LED together
Table 1-10 10/100/1000Base-T auto-sensing Ethernet port LEDs description
Status
Description
Port mode Ethernet port status
LED
LED
The port operates at a rate of 1000 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Steady green
Steady
green (rate
mode)
The port operates at a rate of 10/100 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Steady yellow
Flashing yellow (3 Hz) POST failed on the port.
Off
The port is not up.
The port operates in full-duplex mode; the LED is fast
flashing when data is being sent and/or received on the port.
Steady green
Steady
yellow
(duplex
mode)
The port operates in half-duplex mode; the LED is fast
flashing when data is being sent and/or received on the port.
Steady yellow
Flashing yellow (3 Hz) POST failed on the port.
Off
The port is not up.
1-8
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SFP Port Status LED
The port mode LED and the SFP port status LED together indicate the SFP port operation status. Refer
Table 1-11 SFP port status LEDs description
Status
Description
Port mode
LED
Ethernet port
status LED
The port operates at a rate of 1000 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Steady green
Steady yellow
The port operates at a rate of 100 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Steady green
(rate mode)
Flashing yellow
(3 Hz)
POST failed on the port.
The port is not up.
Off
The port operates in full-duplex mode; the LED is fast flashing
when data is being sent and/or received on the port.
Steady green
Steady yellow
(duplex mode)
Flashing yellow
(3 Hz)
POST failed on the port.
The port is not up.
Off
Interface Module Status LED
Table 1-12 Interface module status LED description
Mark
Status
Green
Description
The interface module is in the slot and operates normally.
MOD1
MOD2
The inserted interface module type is incorrect or the interface
module fails.
Flashing yellow
Off
No interface module is installed.
Optional Interface Modules
The Switch 4510G provide two interface module slots on the rear panel. You can select the interface
The Switch 4510G support IRF, requiring physical connections between devices. The 10 GE ports of
the supported interface modules support IRF, allowing you to connect the switches through these 10 GE
ports for IRF implementation.
Table 1-13 Description of the supported interface modules
Interface quantity
Model
Description
Remarks
and type
Suitable for short-distance
connections using CX4 power
cables, and support IRF
2 × 10 Gbps electrical
ports
3C17767
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Interface quantity
and type
Model
3C17766
3C17768
Description
Remarks
2 × 10 Gbps XFP
optical ports
Using XFP optical transceivers
and fibers for long-distance
connections, and support IRF
1 × 10 Gbps XFP
optical port
Using SFP+ power cables for
short-distance connections, and
support IRF
LSPM2SP2P
Using SFP+ optical transceivers
and fibers for long-distance
connections, and support IRF
Short-haul Dual-Port 10 GE CX4 Interface Module
Figure 1-5 Short-haul dual-port 10 GE CX4 interface module
Figure 1-6 Front panel of short-haul dual-port 10 GE CX4 interface module
A short-haul dual-port 10 GE CX4 interface module provides two 10 Gbps electrical ports and supports
CX4 electrical and protocol standards. Only 3Com’s CX4 power cables can be used for connecting the
CX4 ports. ACX4 cable is hot swappable and its maximum transmission distance is 3 m (9.84 ft.), which
is suitable for short-distance connections only.
Table 1-14 CX4 cables supported by the short-haul dual-port 10 GE CX4 interface module
CX4 Cable
Connector type
Length
0.5 m (19.69 in.)
3C17775
3C17776
3C17777
4X Infiniband
1 m (39.37 in.)
3 m (118.11 in.)
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Figure 1-7 CX4 cable
Dual-Port 10 GE XFP Interface Module
Figure 1-8 Dual-port 10 GE XFP interface module
Figure 1-9 Front panel of dual-port 10 GE XFP interface module
Adual-port 10 GE XFP interface module provides two 10 Gbps XFP optical ports. You can insert an XFP
transceiver into the port to connect it to another XFP port through an optical fiber. You can select the
Table 1-15 XFP transceivers supported by 10 GE XFP interface module
Max
transmission
distance
Central
wavelength
Transceiver
Connector
Fiber
50/125 µm multimode
optical fiber
300 m (984.25 ft.)
33 m (108.27 ft.)
10 km (6.21 mi.)
40 km (24.85 mi.)
XFP-SX-MM850
XFP-LX-SM1310
850 nm
62.5/125 µm
multimode optical fiber
LC
9/125 µm single mode
optical fiber
1310 nm
9/125 µm single mode
optical fiber
XFP-LH40-SM1550-F1 1550 nm
1-11
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z
z
You are recommended to use XFP transceivers of 3Com on the Switch 4510G.
The types of XFP transceivers may vary over time. Consult 3Com marketing personnel or technical
support personnel to obtain the latest information about XFP transceivers.
One-port 10 GE XFP Interface Module
Figure 1-10 One-port 10 GE XFP interface module
Figure 1-11 Front panel of one-port 10 GE XFP interface module
This module provides one 10 Gbps XFP optical interface. You can select the following XFP transceivers
as required. A one-port 10 GE XFP interface module provides one 10 Gbps XFP optical port. You can
insert an XFP transceiver into the port to connect it to another XFP port through an optical fiber. You can
Dual-Port 10 GE SFP+ Interface Module
Figure 1-12 Dual-port 10 GE SFP+ interface module
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Figure 1-13 Front panel of dual-port 10 GE SFP+ interface module
A dual-port 10 GE SFP+ interface module provides two 10 Gbps SFP+ ports. You can insert an SFP+
transceiver into the port to connect it to another SFP+ port through an optical fiber, or an SFP+ cable
1-16.
Table 1-16 SFP+ transceivers and SFP+ cables supported by dual-port 10 GE SFP+ interface module
Central
waveleng Connector
th
Max
transmission
distance
Transceiver Transceiver/
Fiber
/Cable type
Cable
SFP-XG-SX-
MM850-A
50/125 µm multimode 300 m (984.25
850 nm
optical fiber
ft.)
10 GE SFP+
transceiver
SFP-XG-LX2
20-MM1310
62.5/125 µm
multimode optical fiber ft.)
220 m (721.78
LC
1310 nm
SFP-XG-LX-
SM1310
9/125 µm single mode
10 km (6.21 mi)
optical fiber
SFP+ cable
LSWM1STK
LSWM2STK
LSWM3STK
LSWM4STK
0.65 m (2.13 ft.)
1.2 m (3.94 ft.)
3 m (9.84 ft.)
Short-haul
10 GE SFP+
cable
—
—
10 m (32.81 ft.)
Figure 1-14 SFP+ cable
Handle
Handle
Connector 2
Connector 1
z
z
You are recommended to use SFP+ transceivers and SFP+ cables of H3C on the switch 4510G.
The types of SFP+ transceivers and SFP+ cables may update with time. For information about
transceivers, contact 3Com technical support or marketing staff.
1-13
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Description of LEDs of Interface Modules
Table 1-17 Description of LEDs on interface modules
LED
Mark
Status
Description
The port is normally connected.
The LED blinks quickly when the
port is sending or receiving data.
This LED is
On
Off
Port LED of an
interface module
not affected
by the mode
button.
—
The port is not up.
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2
Preparing for Installation
Safety Precautions
Before you install or remove any components from the Switch or carry out any maintenance procedures,
you must read the 3Com Switch Family Safety and Regulatory Information document enclosed with
your switch.
To avoid damage to human body and devices, please read the following safety recommendations
carefully before installing the Switch 4510G. The recommendations do not cover every possible
hazardous condition.
z
z
z
z
Before cleaning the switch, unplug the power plug of the switch first. Do not clean the switch with
wet cloth or liquid.
Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
Do not place the switch on an unstable case or desk. The switch might be damaged severely in
case of a fall.
Ensure proper ventilation of the equipment room and keep the ventilation vents of the switch free of
obstruction.
z
z
Make sure that the operating voltage is the same as the voltage labeled on the switch.
Do not open the chassis while the switch is operating or when electrical hazards are present to
avoid electrical shocks.
z
When replacing interface modules, wear ESD-preventive gloves to avoid damaging the cards.
Installation Site
The Switch 4510G must be used indoors. You can mount your switch in a rack or on a workbench, but
make sure:
z
z
z
z
Adequate clearance is reserved at the air inlet/exhaust vents for ventilation.
The rack or workbench has a good ventilation system.
The rack is sturdy enough to support the device and its accessories.
The rack or workbench is well earthed.
To ensure normal operation and long service life of your switch, install it in an environment that meets
the requirements described in the following subsections.
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Temperature/Humidity
You must maintain a proper temperature and humidity in the equipment room. Long-term high humidity
may lead to bad insulation, electricity leakage, mechanical property changes, and metal corrosion.
However, if the relative humidity is two low, captive screws may become loose as the result of
contraction of insulation washers and static electricity may be produced in a dry environment to
jeopardize the circuits on the device. High temperature is the most undesirable condition, because it
accelerates aging of insulation materials and can thus significantly lower reliability and service life of
your switch.
Cleanness
Dust is a hazard to the operating safety of your device. The dust accumulated on the chassis can be
adsorbed by static electricity and result in poor contact of metal connectors or metal contact points.
Especially when the indoor relative humidity is low, electrostatic adsorption is more likely to happen.
This can not only shorten the service life of your device but also cause communications failures. The
following table lists the dust concentration limit.
Table 2-1 Dust concentration limit in the equipment room
Substance
Unit
Particles/m³
Note: The dust particle size ≥ 5 μm.
Concentration limit
≤ 3 x 104 (no visible dust on the tabletop
within three days)
Dust
Besides dust, there are rigorous limits on the content of harmful substances in the air that can
accelerate the corrosion and aging of metals, such as chloride, acid, and sulfide in the equipment room,
and the equipment room must be protected against ingression of harmful gases such as SO2, H2S, NH3,
and Cl2. For specific requirements, see the following table.
Table 2-2 Harmful gas limits in the equipment room
Gas
Maximum concentration (mg/m3)
SO2
H2S
NH3
Cl2
0.2
0.006
0.05
0.01
Electromagnetic Susceptibility
The operation of your switch can be affected by external interferences, such as conducted emission by
capacitance coupling, inductance coupling, electromagnetic wave radiation, and common impedance
(including the grounding system) coupling, and leads (power cords, signaling cables and output wires).
To eliminate the interferences, pay attention to the following:
z
As the AC power system is a TN system, use a single-phase three-wire power socket with
Protection Earth (PE) to effectively filter interference from the power grid.
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z
z
z
Keep the device far from radio transmitting stations, radar stations, and high-frequency devices.
Use electromagnetic shielding when necessary, for example, use shielded interface cables.
Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or
overcurrent caused by lightning strikes.
Laser Safety
The Switch 4510G are Class 1 laser devices.
When the optical ports on the Switch 4510G are operating, do not stare into the optical ports because
the laser light emitted by the optical fiber may hurt your retina.
Staring into the laser beam produced by the fiber may hurt your eyes.
Installation Tools
z
Flathead screwdriver
Phillips screwdriver
ESD-preventive wrist strap
z
z
The installation tools are not shipped with the Switch 4510G.
2-3
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3
Installing the Switch
When you ask your sales agent to maintain the switch, you must ensure that the
dismantlement-preventive seal on a mounting screw of the 3Com switch chassis is intact. If you want to
open the chassis, you should contact the agent for permission. Otherwise, you will bear any
consequence resulted from your actions without permission.
Installation Flow of the Switch
Figure 3-1 Hardware installation flow of the switch
Start
Install the switch to the
specified position
Connect the ground wire
Yes
Hot swappable power
module needed？
Select and Install the
No
power module
Connect the power cord
Verify the Installation
Power on the switch
Troubleshoot
No
Power off the switch
Operates normally？
Yes
No
Install Interface cards？
Yes
Install the Interface card
No
Troubleshoot
Operates normally？
Yes
Install the transceivers and
cables
End
3-1
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The Switch 4510G support IRF. For details about implementation of the IRF system and installation
Installing the Switch into a 19-Inch Rack Using Mounting Brackets
You can install a switch into a 19-inch standard cabinet in one of the following two ways:
z
z
Use front mounting brackets
Use front mounting brackets and a tray
Introduction to Mounting Bracket
Figure 3-2 Appearance of a standard front mounting bracket
(1)
(2)
(1) Screw hole used to fix the mounting bracket to the cabinet (Use one M6 screw)
(2) Screw hole used to fix the switch to the mounting bracket
Use Front Mounting Brackets to Install a Switch
Follow these steps to mount a switch into a 19-inch standard cabinet:
Step1 Wear an ESD-preventive wrist strap and ensure a good skin contact and grounding.
Step2 Check the grounding and stability of the cabinet.
Step3 Take out the screws which are packed together with the front mounting brackets, and fix one end of
3-2
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Figure 3-3 Fix front mounting brackets (1)
(1) Front panel of the switch
Step4 Place the switch horizontally in a proper position, and fix the other end of mounting brackets to the front
Figure 3-4 Fix front mounting brackets (2)
(1)
(1)
(2)
(3)
(1) Front square-holed post
(3) Front mounting bracket
(2) Front panel
Use Front Mounting Brackets and a Tray to Install a Switch
All models of the Switch 4510G support installation using front mounting brackets together with a tray.
Follow these steps to install a switch into a 19-inch standard cabinet:
Step1 Wear an ESD-preventive wrist strap and ensure a good skin contact and grounding.
Step2 Check the grounding and stability of the cabinet.
Step3 Fix the delivered tray horizontally in a proper position.
Step4 Take out the screws which are packed together with the front mounting brackets, and fix one end of
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Step5 Place the switch on the tray horizontally, slide the tray into the cabinet, and fix the other end of mounting
Mounting the Switch on a Workbench
In many cases, standard 19-inch racks are not available. Therefore, switches are often placed on clean
workbenches. To place your switch on a workbench, you simply need to:
z
z
Make sure that the workbench is clean, flat, and sturdy.
Make sure that the environment is well ventilated and allows 10 cm (3.94 in.) of space around the
chassis for heat dissipation.
z
z
Do not place heavy objects on your switch.
The vertical distance between two switches must be at least 1.5 cm (0.59 in).
Connecting the Grounding Cable
z
z
Correctly connecting the chassis grounding cable is crucial to the lightning protection and
electromagnetic susceptibility (EMS) of a switch.
The power and grounding terminals in this section are for illustration only.
The power input end of the switch is connected with a noise filter, whose central ground is directly
connected to the chassis, forming the so-called chassis ground (commonly known as PGND). This
chassis ground must be securely connected to the earth so that the faradism and leakage electricity can
be safely released to the earth, enhancing the EMS capability of the switch.
When a Grounding Strip is Available
When a grounding strip is available at the installation site, attach one end of the yellow-green grounding
cable (PGND cable) of the switch to the grounding screw on the grounding strip (the grounding screw
and the grounding hole are on the rear panel of the switch and are marked with a grounding sign). To do
this, follow these steps:
Step1 Remove the grounding screw from the rear panel of the switch chassis.
Step2 Put the supplied OT terminal of the PGND cable on the grounding screw.
Step3 Fasten the grounding screw, which is attached with the OT terminal of the PGND cable, into the
grounding screw hole with a screwdriver.
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Figure 3-5 Connect the PGND cable to the grounding hole of switch
(1) Rear panel of the switch
(3) Grounding hole
(2) Grounding sign
(4) OT terminal
(5) PGND cable
(6) Grounding screw
To attach the other end of the PGND cable to the grounding strip in the equipment room, follow these
steps:
Step1 Cut the PGND cable to a proper length according to the distance between the switch and the grounding
strip.
Step2 Peel 5 mm (0.20 in.) of insulation sheath using a wire stripper, and then insert the naked metal part
through the black insulation covering into the end of the OT terminal.
Step3 Secure the metal part of the cable to the OT terminal with a crimper, and then cover it with the insulation
covering. Then heat the insulation covering with a blowing machine to let it completely cover the metal
part.
Step4 Connect the OT terminal to the grounding pole of the grounding strip, and then fasten it with a hex nut.
Figure 3-6 Connect the PGND cable to the grounding strip
(1) Grounding post
(3) PGND cable
(2) Grounding strip
(4) Hex nut
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The fire main and lightning rod of a building are not suitable for grounding the switch. The ground wire of
the switch should be connected to the grounding device for the equipment room.
Where a Grounding Conductor Can be Buried
When there is no grounding strip, but an area with exposed earth is available nearby where a grounding
conductor can be buried, hammer a 0.5 m (1.64 ft.) or longer angle iron or steel tube into the earth. The
angle iron should have a dimension no less than 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in.) and the steel
tube should have a wall thickness no less than 3.5 mm (0.14 in.) and be zinc-coated. Weld the
yellow-green ground wire to the angel iron or steel tube and treat the joint for corrosion protection.
Figure 3-7 Ground the switch by burying the grounding conductor into the earth
(1) Grounding screw
(4) Joint
(2) PGND cable
(5) Grounding conductor
(3) Earth
(6) Switch rear panel
In Other Installation Sites
For an AC-powered switch, if neither of the above-mentioned two conditions is available, ground the
switch through the PE wire of the AC power supply. Make sure the PE wire is well connected to the
ground at the power distribution room or AC transformer side, the switch PE terminal and the PE wire
are well connected, and the three-wire input cable of the PGND cable is used for the power supply cable.
If the PE wire of the AC power supply is not grounded at the power distribution room or AC transformer
side, report the problem and make reconstructions.
3-6
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Figure 3-8 Ground through an AC power PE wire
(1) Three-wire AC power input cable
(2) Switch rear panel
Use the PGND cable provided with the switch to connect the grounding strip in the equipment room.
Otherwise, the grounding effect may not be ensured, which easily causes damage to the switch.
Connecting the Power Cords
Make sure that the ground wire has been properly connected before powering on the switch.
Table 3-1 Power cord connection methods of the Switch 4510G
Switch module
Power supply mode
AC power supply
RPS power supply
Connection method
Switch 4510G 24-Port
Switch 4510G 48-Port
Connecting the AC Power Cord
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the
ESD-preventive wrist strap is properly grounded.
Step2 Install the bail latch to prevent the AC power cord from accidentally falling off. Fix the bail latch into the
holes located at the two sides of the AC power receptacle. Then pull the bail latch upwards (see in
Step3 Connect one end of the AC power cord to the AC receptacle on the switch (see callout 1 in Figure 3-10
3-7
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Step4 Pull the bail latch down to secure the plug to the AC receptacle (see callout 2 in Figure 3-10 or Figure
3-12).
Step5 Connect the other end of the AC power cord to the external AC power supply system.
Step6 Check whether the system status LED (PWR) on the front panel of the switch is ON. If the LED is ON, it
shows the power cord is properly connected.
Figure 3-9 Connect an AC power cord to a horizontal AC power socket (1)
Figure 3-10 Connect an AC power cord to a horizontal AC power socket (2)
Figure 3-11 Connect an AC power cord to a vertical AC power socket (1)
Figure 3-12 Connect an AC power cord to a vertical AC power socket (2)
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Connecting the RPS Power Cord
The Switch 4510G 24-Port and Switch 4510G 48-Port can work with RPS500-A3 using its +12 V/10.5 A
output and a 0404A03C power cord. Procedures for connecting the RPS power cords are the same for
these three models.
Follow these steps to connect an RPS power cord to the switch:
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the
ESD-preventive wrist strap is properly grounded.
Step2 Loosen the captive screws on the RPS receptacle protective cover and remove the protective cover, as
Figure 3-13 Connect an RPS power cord (1)
Step3 Keep the upside of the +12 VDC RPS plug on top and plug it in the RPS DC receptacle (see callout 1 in
Figure 3-14). (If you plug it with the upside down, the insertion is not smooth because of the specific
structure design of the RPS DC receptacle and the RPS plug.)
Step4 Use a flat-blade screwdriver to fix the two screws on the RPS plug clockwise to secure the plug to the
Figure 3-14 Connect an RPS power cord (2)
Step5 Connect the other end of the +12 VDC RPS power cord to the external RPS power supply system.
Step6 Check whether the RPS LED on the front panel of the switch is ON. If yes, the power is properly
connected.
Installing an Interface Module
The Switch 4510G provide two interface module slots on the rear panel. For details about optional
The installation and removal of various interface modules are similar. This section describes the
installation and removal of the Dual-Port 10 GE XFP Interface Module (3C17766) for illustration.
3-9
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Installing an Interface Card
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the
ESD-preventive wrist strap is properly grounded.
Step2 Loosen the mounting screws of the filler panel on the interface module slot of the switch's rear panel
with a Phillips screwdriver and remove the filler panel.
Figure 3-15 Install an interface module (1)
Step3 Hold the fastening screws on the front panel of the XFP interface module, and gently push the interface
module in along the slot guide rail until the interface module is in close contact with the switch.
Step4 Tighten the captive screws with a Phillips screwdriver to fix the interface module.
Figure 3-16 Install an interface module (2)
z
z
Keep the removed filler panel properly for future use.
When tightening the fastening screws at both sides of the optional module with a screwdriver or an
electric screwdriver, make sure that the torque is not bigger than 0.4 N-m.
Removing an Interface Module
Step1 Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the
ESD-preventive wrist strap is properly grounded.
3-10
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Step2 Use a Phillips screwdriver to loosen the captive screws at both sides of the interface module until all
spring pressure is released.
Step3 Pull the interface module towards you along the guide rails, until it completely comes out of the switch
chassis.
When installing or removing an optional interface module, pay attention to the following points:
z
z
z
Do not touch the surface-mounted components directly with your hands.
Do not use too much force in the operation.
After removing an interface module, if no new module is to be installed, install the filler panel as
soon as possible to prevent dust and ensure the normal ventilation in the switch.
Installing Dedicated CX4/SFP+ Cable
Installing Dedicated CX4/SFP+ Cable
The installation and removal of dedicated CX4 cables and SFP+ cables are similar. This section
describes the installation and removal of the dedicated CX4 cable for illustration.
Make sure that you have installed a CX4/SFP+ interface module before installing CX4/SFP+ cables.
Step1 Put on an ESD-preventive wrist strap and verify the ESD-preventive wrist strap properly grounded.
Then take out the dedicated CX4 cable from the package.
Step2 Horizontally plug the plug of the dedicated CX4 cable into the CX4 port of the switch and pay attention to
the direction of the plug when plugging it.
Removing Dedicated CX4/SFP+ Cable
Step1 Put on an ESD-preventive wrist strap and verify the ESD-preventive wrist strap properly grounded.
Step2 Hold the plug of the CX4 cable, pull the handle at the end of the plug to horizontally unplug the plug of
the CX4 cable from the CX4 port of the switch.
z
z
Dedicated CX4/SFP+ cable of the Switch 4510G is hot pluggable.
Make sure that the cable bending radius is no less than eight times of the cable diameter when
dedicated CX4/SFP+ cable is connected.
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Installing Switches for an IRF
The Switch 4510G support the IRF function. You can install IRF-capable interface modules to connect
multiple switches through the 10 GE ports to form a logical entity, thus to establish a new intelligent
network with high reliability, expandability and manageability.
Installation Flow for an IRF
Figure 3-17 Installation flow for an IRF
Start
Draw a plan for an IRF
of switches
Install switches to the correct
position as per the plan
Connect the PGND cables and
power cords for the switches
Power on the switches
Install Interface modules
Configure software for the IRF
members
Power off the switches
Connect cables between every
two switches in the IRF
Power on the switches
End
Table 3-2 Description of the installation flow for an IRF of switches
No
Task
Remarks
Take the following into consideration:
z
z
z
z
Number of IRF members and the bandwidth
Interface modules and cables
Physical connection mode( daisy chain connection or ring connection)
Cable connection
Draw a plan for
an IRF with
switches
1
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No
Task
Remarks
For detailed installation procedures, see:
Install the IRF
members to the
correct position
2
z
z
Connect
grounding
For details, see:
3
cables and
power cords for
the switches
z
z
Power on the
IRF members
4
5
—
Install interface
modules
Configure
software for the
IRF members
For details about the IRF function, see IRF Configuration in the System
Volume of the 3Com Switch 4510G Family Configuration Guide.
6
7
Power off the
switches
—
Use cables to connect 10 G ports of the interface modules:
z
z
The given XFP ports work with XFP optical transceivers and fibers
The given SFP+ ports can work with SFP+ optical transceivers and
fibers for long-haul transmission; or they can be directly connected
through dedicated SFP+ cables for short-haul transmission
Connect the
cables
8
9
z
The given CX4 ports use dedicated CX4 cables for connection
For details about the cable connection, refer to Installing Dedicated
Power on the
switches
Finish establishing an IRF
Drawing a Plan for an IRF with Switches
Before implementing an IRF of switches, draw a plan according to actual conditions of the user network
and network devices and take the following points into consideration:
Determine the number of IRF members and the bandwidth
You can determine the number of IRF members and the bandwidth according to the network scale.
z
z
The Switch 4510G support two to four switches in a stack.
The Switch 4510G support aggregation of the 10 GE ports. You can assign the two 10 GE ports of
an interface module to an aggregation group to expand the bandwidth for the stack.
10 GE ports of different interface modules cannot join the same aggregation group in the IRF. Therefore,
1-port XFP interface modules do not support port aggregation in the IRF.
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Select the proper interface modules and cables
You can select the interface modules and cables according to the distance between devices in the IRF.
For long-distance connections, use XFP or SFP+ transceivers and fibers to connect the devices; for
short-distance connections, use 3C17767 or LSPM2SP2P with CX4 or SFP+ cables to connect the
Configure the physical connection mode
IRF supports two physical connection modes: daisy chain connection and ring connection.
A ring connection is more reliable than a daisy chain connection. The failure of one link in a ring
connection does not affect the function and performance of the IRF, whereas the failure of one link in a
daisy chain connection causes the split of the IRF.
Figure 3-18 The daisy chain connection mode
Master
Slave
IRF
Slave
Figure 3-19 The ring connection mode
Each of the devices comprising a ring connection or non-edge devices in a daisy chain connection
needs two 10 GE ports to connect other devices; therefore, you need to install two 1-port 10 GE XFP
interface modules on such devices.
Connect the cables
Before connecting the cables, determine the actual position of the member devices and the length of
the cables, and observe the following:
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z
z
Understand the neighbor devices for one another
Install the interface modules in proper slots as needed. Each Switch 4510G provides two
expansion slots.
z
Determine the ports on different devices to be connected.
Note that:
When 2-port interface modules are used to constitute an IRF of switches and the ports are not
z
assigned to any aggregation group, ports of the interface module in slot 1 (MOD 1) can be
connected to ports of MOD 1 or MOD 2. However, the left port can be connected to only the right
port of another interface module, that is, two ports at the same side cannot be connected, as shown
Figure 3-20 Cable connections in an IRF in the non-aggregate mode with 2-port interface modules
z
When 2-port interface modules are adopted in an IRF with ports operating in the aggregation mode,
ports of MOD 1 can only be connected to ports of MOD 2, and the locations of the ports of the
interface modules are not limited.
Figure 3-21 Cable connections in an IRF in the aggregation mode with 2-port interface modules
z
1-port interface modules do not support port aggregation in the IRF. When 1-port interface modules
are connected for an IRF, the port of MOD 1 can only be connected to the port on MOD 2, as shown
module for an IRF, the port of MOD 1 can only be connected to the right port of the 2-port interface
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Figure 3-22 Cable connections for an IRF with 1-port interface modules
Verifying the Installation
z
z
z
z
Check whether the selected power is the same as the power label on the switch;
Check whether the ground wire is connected;
Check whether the power cords are connected correctly;
Check whether all the interface cables are routed indoors. If there are cables outdoors, check that
the socket strip with lightning protection and lightning arresters for network ports have been
correctly connected.
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4
Starting and Configuring the Switch
Setting up the Configuration Environment
Set up the configuration environment as follows:
Connect a terminal (a PC in this example) to the console port on the switch with a console cable.
Figure 4-1 Network diagram for configuration environment setup
Connecting the Console Cable
Console Cable
A console cable is an 8-core shielded cable. One end of the cable is a crimped RJ-45 connector, which
is connected to the console port of the switch, and the other end is a DB-9 female connector, which is
connected to the serial port on the console terminal, as shown below.
Figure 4-2 Console cable
Table 4-1 Console cable pinouts
RJ-45
Signal
Direction
DB-9
1
2
RTS
DTR
←
←
7
4
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RJ-45
Signal
Direction
DB-9
3
4
5
6
7
8
TXD
CD
←
→
--
3
1
5
2
6
8
GND
RXD
DSR
CTS
→
→
→
Connection Procedure
When you want to use the terminal to configure the switch, follow these steps to connect a terminal
device to the switch using the console cable:
Step1 Plug the DB-9 female connector of the console cable to the serial port of the console terminal or PC.
Step2 Connect the RJ-45 connector of the console cable to the console port of the switch.
Pay attention to the mark on the console port and be sure to plug the connector to the correct port.
z
z
When connecting a PC to a powered-on switch, you are recommended to connect the DB-9
connector of the console cable to the PC before connecting the RJ-45 connector to the switch.
When disconnecting a PC from a powered-on switch, you are recommended to disconnect the
DB-9 connector of the console cable from the PC after disconnecting the RJ-45 connector from the
switch.
Setting Terminal Parameters
When setting up the configuration environment through the console port, the terminal or PC can use the
terminal emulation program to communicate with the switch. You can run the HyperTerminal of the
Windows operating system to connect to other PCs, network devices, and Telnet sites. For detailed
information and the use of the HyperTerminal, refer to the HyperTerminal Help documentation in Help
and Support Center on the PC running the Windows operating system.
In the following configuration procedure, Windows XP HyperTerminal is used to communicate with the
switch.
1) Start the PC and run the terminal emulation program.
2) Set terminal parameters as follows:
z
Bits per second: 19,200
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z
z
z
z
z
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None
Emulation: VT100
The specific procedure is as follows:
Step1 Select Start > Programs > Accessories > Communications > HyperTerminal to enter the
HyperTerminal window. The Connection Description dialog box appears, as shown below.
Figure 4-3 Connection description of the HyperTerminal
Step2 Type the name of the new connection in the Name text box and click OK. The following dialog box
appears. Select the serial port to be used from the Connect using drop-down list.
Figure 4-4 Set the serial port used by the HyperTerminal connection
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Step3 Click OK after selecting a serial port. The following dialog box appears. Set Bits per second to 19200,
Data bits to 8, Parity to None, Stop bits to 1, and Flow control to None.
Figure 4-5 Set the serial port parameters
Step4 Click OK after setting the serial port parameters and the system enters the HyperTerminal window
shown below.
Figure 4-6 HyperTerminal window
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Step5 Click Properties in the HyperTerminal window to enter the Switch Properties dialog box. Click the
Settings tab, set the emulation to VT100, and then click OK.
Figure 4-7 Set terminal emulation in Switch Properties dialog box
Booting the Switch
Checking before Powering on the Switch
Before powering on the switch, verify that:
z
z
z
The power cord and ground cable are properly connected.
The power supply voltage is consistent with that required by the switch.
The console cable is properly connected; the terminal (which can be a PC) used for configuration
has been started; and the configuration parameters have been set.
Powering on the Switch
All the Switch 4510G have the same Boot ROM display style. This document uses the Boot ROM
display of Switch 4510G 24-Port as an example:
Starting......
*************************************************************************
*
*
*
*
*
*
Switch 4510G 24-Port BOOTROM, Version 510
*************************************************************************
Copyright (c) 2004-2009 3Com Corporation and its licensors.
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Creation date
: May 18 2009, 17:01:57
CPU Clock Speed : 264MHz
BUS Clock Speed : 33MHz
Memory Size
Mac Address
: 128MB
: 001cc5bc3111
Press Ctrl-B to enter Boot Menu... 1
The last line asks whether you want to enter the Boot Menu. The system waits one second for your
response.
z
z
The system has two startup modes: normal startup and fast startup. The normal startup mode
takes a little longer time than the fast startup mode because of more self-test operations.
By default, the system starts up in fast startup mode and the waiting time here is one second. If you
set the startup mode to normal, this waiting time is five seconds. For the setting of the startup mode,
z
If you press Ctrl + B within 1 second, the system displays:
Password :
Enter the correct Boot ROM password and click Enter to enter the Boot Menu. By default, no password
is set and you can click Enter directly to enter the Boot Menu.
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Table 4-2 Description on the fields
Item
Description
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
Download the application file to the flash memory
Select the application file to boot
Display all files in the flash memory
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Item
Description
Delete files from the flash memory
Modify the Boot ROM password
Enter the Boot ROM update menu
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
Skip the current configuration file (this configuration is
valid once)
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Restore the Boot ROM password
Set the startup mode of the switch
Restart the switch
z
If you perform no operation or press a key other than Ctrl + B within one second, Once the
remaining waiting time becomes zero, the system begins to automatically start up and the following
information is displayed:
Auto-booting...
Decompress Image................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
...........................................OK!
User interface aux0 is available.
Press ENTER to get started.
The appearance of "Press ENTER to get started" indicates that the automatic startup of the switch is
complete.
Press Enter. The following prompt is displayed:
<Sysname>
You can configure the switch now.
Changing the Startup Mode
By default, the system starts up in fast mode. If you want to change the startup mode to normal, press
Ctrl + B within one second to enter the Boot Menu showed below:
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BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Enter 9, and the system prompts you to change the startup mode:
The current mode is fast startup mode!
Are you sure you want to change it to full startup mode? Yes or No(Y/N)
Enter Y. The system displays the following information:
Setting startup mode...done!
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Enter 0. The system reboots in normal mode and displays the following information:
Starting......
*************************************************************************
*
*
*
*
*
*
Switch 4510G 24-Port BOOTROM, Version 510
*************************************************************************
Copyright (c) 2004-2009 3Com Corporation and its licensors.
Creation date
: May 18 2009, 17:01:57
CPU Clock Speed : 264MHz
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BUS Clock Speed : 33MHz
Memory Size
Mac Address
: 128MB
: 001cc5bc3111
Press Ctrl-B to enter Boot Menu... 0
In normal startup mode, the waiting time here is five seconds. If you press Ctrl + B within five seconds,
the Boot Menu is displayed. If you press Ctrl + B within five seconds, the Boot Menu is displayed: If you
perform no operation or press a key other than Ctrl + B within five seconds, the system begins to
automatically start up and the following information is displayed:
Auto-booting...
Decompress Image................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
...........................................OK!
Board checking.......................LSP1LTSUD
SDRAM fast selftest........................OK!
Flash fast selftest........................OK!
CPLD selftest..............................OK!
Switch chip selftest.......................OK!
PHY selftest...............................OK!
Subslot 1 (3CRS45G-24-91) selftest.........OK!
Please check leds....................FINISHED!
User interface aux0 is available.
Press ENTER to get started.
The appearance of "Press ENTER to get started" indicates that the automatic startup of the switch is
complete.
Press Enter. The following prompt is displayed:
<Sysname>
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You can configure the switch now.
The Switch 4510G provide abundant command views. For detailed descriptions about the configuration
commands and CLI, refer to 3Com Switch 4510G Family Configuration Guide, 3Com Switch 4510G
Family Command Reference Guide.
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5
Boot ROM and Host Software Loading
Introduction to Loading Modes
The switch software consists of Boot ROM software (.btm) and host software (.bin). You can load both
Table 5-1 Approaches for loading software on the switch
Approach
Section
Loading files through the Boot ROM
menu
Loading files through the CLI
The Boot ROM software version must match the host software version when you load the Boot ROM
and host software.
Loading Software Through the Boot ROM Menu
If your terminal is directly connected to the switch, you can load Boot ROM and host software locally
through the Boot ROM menu.
Before loading the software, make sure that your terminal is correctly connected to the switch to insure
successful software loading.
Boot Menu
Starting......
*************************************************************************
*
*
*
*
*
*
Switch 4510G 24-Port BOOTROM, Version 510
*************************************************************************
Copyright (c) 2004-2009 3Com Corporation and its licensors.
Creation date
: May 18 2009, 17:01:57
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CPU Clock Speed : 264MHz
BUS Clock Speed : 33MHz
Memory Size
Mac Address
: 128MB
: 001cc5bc3111
Press Ctrl-B to enter Boot Menu... 1
Press Ctrl + B. The system displays:
Password :
z
z
To enter the Boot Menu, you must press Ctrl + B within one second after the information “Press
Ctrl-B to enter Boot Menu...” appears. Otherwise, the system starts to decompress the program;
and if you want to enter the Boot Menu at this time, you will have to restart the switch.
By default, the system starts up in fast startup mode and the waiting time here is one second. If you
set the startup mode to normal, this waiting time is five seconds. For the setting of the startup mode,
Input the correct Boot ROM password (by default, no password is set on the switch and you can click
Enter directly). The system enters the Boot Menu:
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
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The loading process of the Boot ROM software is the same as that of the host software, except that
during the Boot ROM loading process, you must enter the different digit after entering the Boot Menu
and the system gives somewhat different prompts. The following text mainly describes the Boot ROM
loading process.
Loading Software Using XMODEM Through Console Port
Introduction to XMODEM
XMODEM is a file transfer protocol that is widely used due to its simplicity and good performance.
XMODEM transfers files via console port. It supports one type of data packets (128 bytes), two check
methods (checksum and CRC), and error packet retransmission mechanism (generally the maximum
number of retransmission attempts is ten).
The XMODEM transmission procedure is completed by the cooperation of a receiving program and a
sending program. The receiving program sends a negotiation packet to negotiate a packet check
method. After the negotiation, the sending program starts to transmit data packets. When receiving a
complete packet, the receiving program checks the packet using the agreed method. If the check
succeeds, the receiving program sends an acknowledgement packet and the sending program
proceeds to send another packet; otherwise, the receiving program sends a negative
acknowledgement packet and the sending program retransmits the packet.
Loading Boot ROM software
Complete the following tasks to update the Boot ROM software using XMODEM through the console
Task
Remarks
Log in to the switch through the HyperTerminal
and then configure the protocol used for loading
files.
Required
Log in to the switch through the HyperTerminal
and then set the download rate of the console port
on the switch.
Optional
Set the baud rate of the serial port on the terminal
to be consistent with that of the console port on
the switch.
Required
Transmit a file from the terminal to the switch, and
update the Boot ROM file on the switch.
Optional
Set the baud rate of the serial port on the terminal
to be consistent with the default rate of the
console port on the switch.
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Task
Remarks
Required
1) Enter the Boot ROM update menu on the switch
Enter the Boot ROM menu, and then enter 6 after the system displays “Enter your choice(0-9):” to enter
the Boot ROM update menu.
Bootrom update menu:
1. Set TFTP protocol parameter
2. Set FTP protocol parameter
3. Set XMODEM protocol parameter
0. Return to boot menu
Enter your choice(0-3):
2) Configure the switch to download files using XMODEM
Enter 3 in the above menu to load the Boot ROM and host software using XMODEM protocol. The
system displays the following download baud rate setting menu:
Please select your download baudrate:
1. 9600
2.* 19200
3. 38400
4. 57600
5. 115200
0. Return
Enter your choice (0-5):
3) Set the download rate of the console port on the switch
Select an appropriate download rate. For example, if you select 115200 bps, that is, enter 5, the
following information is displayed:
Download baudrate is 115200 bps
Please change the terminal's baudrate to 115200 bps and select XMODEM protocol
Press enter key when ready
Now that the console communication baud rate of the switch has been changed to 115200 bps while
that of the terminal is still 19200 bps, the two sides cannot communicate with each other. According to
the prompt, you need to change the baud rate of the terminal to 115200 bps.
z
z
It is recommended to set the download rate to 115200 bps since the software files are generally
very large.
If you have chosen 19200 bps, you do not need to modify the HyperTerminal’s baud rate, and
therefore you can skip step 4) below and proceed to step 5) directly.
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4) Change the rate of the serial port on the terminal
To ensure communication between the terminal and the switch, the baud rate of the serial port on the
terminal should be consistent with that of the console port on the switch.
Step1 Select Call > Disconnect in the HyperTerminal window to disconnect the terminal from the switch.
Figure 5-1 Disconnect the terminal from the switch
Step2 Select File > Properties. In the Properties dialog box, click Configure (as shown in Figure 5-2), and
Figure 5-2 Properties dialog box
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Figure 5-3 Modify the baud rate
Step3 Select Call > Call to reestablish the connection.
Figure 5-4 Reestablish the connection
The new settings can take effect only after you reestablish the connection.
5) Download the Boot ROM file
Step1 Press Enter in the HyperTerminal window to start downloading the program. The system displays the
following information:
CCCCCCCCCCCCCCCCCC
Press Ctrl + X to quit downloading files; otherwise, proceed as follows.
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Step2 Select Transfer > Send File in the HyperTerminal’s window. Click Browse in the pop-up dialog box (as
shown in Figure 5-5) to select the application file to be downloaded (for example, bootrom.btm), and
select Xmodem from the Protocol drop-down list.
Figure 5-5 Send file dialog box
Step3 Click Send. The following dialog box appears:
Figure 5-6 Page for file sending
After the Boot ROM file is downloaded, the terminal displays the following information:
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdone!
Bootrom updating..........done!
Your baudrate should be set to 19200 bps again!
Press enter key when ready
You do not need to reset the HyperTerminal’s baud rate and can skip the last step if you have chosen
19200 bps. In this case, the system returns to the Boot ROM update menu directly instead of displaying
the prompt "Your baudrate should be set to 19200 bps again! Press enter key when ready".
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6) Restore the download rate to the default
Set the baud rate to 19200 bps (refer to Change the rate of the serial port on the terminal on page 5-5 for
detailed operation).
7) Restart the switch to make the updated Boot ROM file effective
Press Enter in the HyperTerminal window to return to the Boot ROM update menu.
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Enter 0 to restart the device. After that, the updated Boot ROM file becomes effective.
Loading host software
Select 1 in Boot Menu to load the host software of the switch. The system displays the following
information:
1. Set TFTP protocol parameter
2. Set FTP protocol parameter
3. Set XMODEM protocol parameter
0. Return to boot menu
Enter your choice(0-3):3
To load the host software through XMODEM, select 3.
The subsequent steps are almost the same as those for loading the Boot ROM software, except that the
system gives the prompt for host software loading instead of Boot ROM loading.
Loading Software Using TFTP through Ethernet Port
Introduction to TFTP
Trivial file transfer protocol (TFTP), a protocol in TCP/IP protocol suite, is used for trivial file transfer
between client and server. It uses UDP to provide unreliable data stream transfer service.
Loading Boot ROM software
Step1 Connect an Ethernet port (GigabitEthernet 1/0/25, for example) of the switch to the server (whose IP
address is available) that provides the file (usually the .bin file or the .btm file) to be downloaded, and
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Figure 5-7 Load Boot ROM software through TFTP/FTP
z
z
You can use one PC as both configuration device and TFTP server.
The TFTP/FTP server program is not provided with the Switch 4510G. Make sure that it is available
by yourself.
Step2 Run TFTP Server on the server connected with the switch’s Ethernet port, and specify the path of the
application file to be downloaded.
Step3 Run the terminal emulation program on the PC connected with the switch’s console port. Start the
switch and enter the Boot ROM menu. At the prompt "Enter your choice(0-9):" select 6 in the Boot Menu
and then press Enter to enter the Boot ROM update menu shown below:
Bootrom update menu:
1. Set TFTP protocol parameter
2. Set FTP protocol parameter
3. Set XMODEM protocol parameter
0. Return to boot menu
Enter your choice(0-3):
Step4 Select 1 in the Boot ROM update menu to download the Boot ROM software using TFTP. Then set the
following TFTP-related parameters as required:
Load File name
:update.btm
:1.1.1.2
Switch IP address
Server IP address
:1.1.1.1
Table 5-2 Description of the TFTP parameters
Item
Description
Load File name
:
Name of the file to be downloaded (for example, update.btm)
IP address of the switch (for example, 1.1.1.2)
IP address of server (for example, 1.1.1.1)
Switch IP address :
Server IP address :
Step5 Press Enter after inputting the information above. The system displays the following information:
Are you sure you want to download file to flash? Yes or No(Y/N)
Step6 Enter Y to start file downloading or N to return to the Boot ROM update menu. If you enter Y, the system
begins to download and update the Boot ROM software. Upon completion, the system displays the
following information to show the loading process is completed:
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Loading........................................done
Bootrom updating..........done!
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Step7 Enter 0 to restart the device. After that, the updated Boot ROM file becomes effective.
Loading host software
Select 1 in Boot Menu to load the host software of the switch. The system displays the following
information:
1. Set TFTP protocol parameter
2. Set FTP protocol parameter
3. Set XMODEM protocol parameter
0. Return to boot menu
Enter your choice(0-3):1
To load the host software through XMODEM, select 1.
The subsequent steps are almost the same as those for loading the Boot ROM software, except that the
system gives the prompt for host software loading instead of Boot ROM loading.
Loading Software Using FTP Through Ethernet Port
Introduction to FTP
File transfer protocol (FTP) is an application-layer protocol in the TCP/IP protocol suite. It is used for
transferring files between server and client, and is widely used in IP networks.
You can use FTP to load software onto the switch through an Ethernet port. In this case, the switch can
act as an FTP server or an FTP client. In the following example, the switch acts as an FTP client.
Loading Boot ROM software
When upgrading the Boot ROM program, the switch can serve only as an FTP client.
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Step1 Connect an Ethernet port (GigabitEthernet 1/0/25, for example) of the switch to the server (whose IP
address is available) that provides the file (usually the .bin file or the .btm file) to be downloaded, and
Step2 Run FTP Server on the server connected with the switch’s Ethernet port, configure the FTP username
and password, and specify the path of the application file to be downloaded.
Step3 Run the terminal emulation program on the PC connected with the switch’s console port. Start the
switch and enter the Boot ROM menu. At the prompt "Enter your choice(0-9):" select 6 in the Boot Menu,
and then press Enter to enter the Boot ROM update menu shown below:
Bootrom update menu:
1. Set TFTP protocol parameter
2. Set FTP protocol parameter
3. Set XMODEM protocol parameter
0. Return to boot menu
Enter your choice(0-3):
Step4 Enter 2 in the above menu to download the Boot ROM software using FTP. Then set the following
FTP-related parameters as required:
Load File name
:update.btm
:10.1.1.2
:10.1.1.1
:4510G
Switch IP address
Server IP address
FTP User Name
FTP User Password
:123
Table 5-3 Description of the FTP parameters
Item
Description
Name of the file to be downloaded
Load File name
:
Switch IP address
IP address of the switch
Server IP address :
FTP User Name
IP address of the FTP server
Username for logging in to the FTP server, which should be consistent
with that configured on the FTP server.
Password for logging in to the FTP server, which should be consistent
with that configured on the FTP server.
FTP User Password
Step5 Press Enter after inputting the information above. The system displays the following information:
Are you sure you want to download file to flash? Yes or No(Y/N)
Step6 Enter Y to start file downloading or N to return to the Boot ROM update menu. If you enter Y, the system
begins to download and update the program. Upon completion, the system displays the following
information:
Loading........................................done
Bootrom updating..........done!
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BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Step7 Enter 0 to restart the device. After that, the updated Boot ROM file becomes effective.
Loading host software
Select 1 in Boot Menu to load the host software of the switch. The system displays the following
information:
1. Set TFTP protocol parameter
2. Set FTP protocol parameter
3. Set XMODEM protocol parameter
0. Return to boot menu
Enter your choice(0-3):2
To load the host software through FTP, select 2.
The subsequent steps are almost the same as those for loading the Boot ROM software, except that the
system gives the prompt for host software loading instead of Boot ROM loading.
Loading Software Through CLI
You can telnet to the switch, and use FTP or TFTP to load Boot ROM and host software remotely.
Loading Software Using FTP
As shown in Figure 5-8, a PC is used as both configuration device and FTP server. You can telnet to the
switch, and then execute the FTP commands to download the host program 4510G.bin and the Boot
ROM program 4510G.btm from the remote FTP server (with IP address 202.10.10.53) to the switch.
Figure 5-8 Load software using FTP/TFTP remotely
Step1 Download the software to the switch using FTP commands.
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<Sysname> ftp 202.10.10.53
Trying ...
Press CTRL+K to abort
Connected.
220 WFTPD 2.0 service (by Texas Imperial Software) ready for new user
User(none):4510G
331 Give me your password, please
Password:
230 Logged in successfully
[ftp] get 4510G.bin
[ftp] get 4510G.btm
[ftp] bye
Step2 Update the Boot ROM program on the switch.
<Sysname> bootrom update file 4510G.btm
This command will update BootRom file, Continue? [Y/N]y
Updating BootRom, please wait...
Upgrade Bootrom succeeded!
Step3 Update the host software on the switch.
<Sysname> boot-loader file 4510G.bin
<Sysname> display boot-loader
The current boot app is: flash:/ 4510G.bin
The main boot app is:
The backup boot app is:
flash:/ 4510G.bin
flash:/ 4510Gbak.bin
Step4 Restart the switch to make the updated host software and the Boot ROM file effective.
<Sysname> reboot
Before restarting the switch, make sure other configurations are all saved to avoid the loss of
configuration information.
After the steps above, the Boot ROM and host software loading is completed.
Pay attention to the following points:
z
z
Host software loading takes effect only after you restart the switch with the reboot command.
If the space of the flash memory is not enough, you can delete the useless files in the flash memory
before software downloading.
z
Power interruption is not allowed during software loading.
Loading Software Using TFTP
The remote loading by using TFTP is similar to the remote loading by using FTP. The only difference is
that it is TFTP that you use when loading software to the switch. In this case, the switch can only be
used as a TFTP client.
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6
Maintenance and Troubleshooting
Software Loading Failure
If software loading fails, the system keeps running in original version. In this case, check if the physical
ports are properly connected.
z
z
If the ports are not properly connected, reconnect them correctly and restart the loading procedure.
If the ports are properly connected, check the loading procedure information displayed on the
HyperTerminal for input errors. If there is any input error, restart the loading procedure with correct
input.
For example, when using XMODEM, verify that you have reset the baud rate of the HyperTerminal to
19,200 bps after loading the software with a baud rate other than 19,200 bps; when using TFTP, verify
that you have specified the correct server and switch IP addresses, the correct name of the software to
be loaded and the correct working path of TFTP server; when using FTP, verify that you have specified
the correct server and switch IP addresses, the correct name of the software to be loaded and the
correct username and password.
If software loading fails but there are neither physical connection problems nor input errors, please
contact your agent for help. Missing Password
Password Missing Failure
Missing User Password
If you have forgotten your user password, you can enter the Boot Menu:
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot
Enter your choice(0-9):
Select 7, and then restart the switch. After the switch is restarted, the user password is removed.
Missing Boot ROM Password
Please contact with your switch dealer.
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Power Supply Failure
The Switch 4510G use fixed power modules. Each of the Switch 4510G has three input modes, namely,
AC input, RPS input and both.
You can check whether the power system of the switch fails by viewing the system status LED (PWR)
Table 6-1 Fixed power module failure LEDs description
LED
Mark
Status
Description
The switch is powered off.
System status LED
PWR
Off
The RPS input is normal, but the AC input fails or
is not connected.
Steady yellow
Off
RPS status LED
RPS
RPS is not connected.
AC input
If the system status LED is off, an AC input failure occurs. Then do the following:
z
Check whether the AC power cord is well connected to the switch, whether the AC receptacle on
the switch and the AC power socket are faulty.
z
z
Check whether the external AC power supply system is normal.
Check whether the operating temperature of the switch is normal, and whether good ventilation is
provided to the power supply (the power module may stop working and enter the protection state
due to over-temperature).
RPS input
If the system status LED or RPS status LED is off, an RPS input failure occurs. Then do the following:
z
z
z
Check whether the switch is well connected to the external RPS power supply.
Check whether the external RPS power supply works normally.
Check whether the operating temperature of the switch is normal, and whether good ventilation is
provided to the power supply (the power module may stop working and enter the protection state
due to over-temperature).
RPS&AC input
When the switch adopts both RPS and AC inputs , you can check the power supply status and the input
status of each line by viewing the system status LED and RPS status LED.
1) The system status LED is off.
Both the AC input and RPS input are faulty. Then do the following:
z
Check whether the AC power cord is well connected to the switch, whether the AC receptacle on
the switch and the AC power socket are faulty.
z
z
z
Check whether the AC external power supply system is normal.
Check whether the switch is well connected to the external RPS power supply.
Check whether the external RPS power supply works normally.
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z
Check whether the operating temperature of the switch is normal, and whether good ventilation is
provided to the power supply (the power module may stop working and enter the protection state
due to over-temperature).
2) The system status LED is on but the RPS status LED is steady yellow.
An AC input failure occurs. Then do the following:
z
Check whether the AC power cord is well connected to the switch, whether the AC receptacle on
the switch and the AC power socket are faulty.
z
Check whether the AC external power supply system is normal.
3) The system status LED is on but the RPS status LED is off.
An RPS input failure occurs. Then do the following:
z
z
Check whether the switch is well connected to the external RPS power supply.
Check whether the external RPS power supply works normally.
If the cause cannot be located in the preceding steps and the problem persists, you need to contact
your local sales agent or service engineer.
Fan Failure
You can check the system status LED and the seven-segment LED of an Switch 4510G to determine
whether the fans operate normally. If a fan failure occurs, the two LEDs give an indication, as shown in
Table 6-2 Fan failure LEDs description
LED
Mark
PWR/SYS
State
System status LED
Steady red
The LED flashes F for fan failure.
Seven-segment LED
Unit
Only when the system status LED is steady red and the seven-segment LED is displayed as F does it
indicate a fan failure.
The Switch 4510G switches use fixed fans. If a fixed fan failure occurs, you cannot solve the problem by
yourself. Please contact your sales agent or service engineer.
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To ensure the normal operation of the switch, you need to contact the local sales agent or service
engineer as soon as possible when a fixed fan failure occurs.
Configuration System Failure
After the switch is powered on and the system is normal, the booting information will be displayed on the
configuration terminal. If the configuration system has any faults, there will not be any screen display at
the configuration terminal or the displayed characters will be totally illegible.
Troubleshooting when there is no terminal display
If there is no output information after the configuration is powered on, please check whether:
z
z
The power supply is normal
The console cable is properly connected
If no problems are found after the above-mentioned items have been checked, the cause may lie in the
console cable or the settings of the terminal (such as hyper terminal) parameters. Please perform the
corresponding check.
Troubleshooting when the terminal display is illegible
If there is illegible display at the configuration terminal, the cause might lie in the parameter setting error
at the terminal (such as HyperTerminal). Verify the following terminal parameter (such as hyper terminal)
settings:
z
z
z
z
z
z
Baud rate: 19,200
Data bits: 8
Parity: none
Stop bits: 1
Flow control: none
Terminal emulation: VT100.
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