GSW-2491TXM
24Fast/1 Slide-in Slot L2 SNMP Switch
USER MANUAL
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Contents
1. INTRODUCTION ......................................................................................................1
Features .......................................................................................................................2
Software Features ........................................................................................................2
Package Contents ........................................................................................................4
Ethernet Switching Technology ....................................................................................5
2. HARDWARE DESCRIPTION...................................................................................6
Physical Dimension ......................................................................................................6
Front Panel...................................................................................................................6
LED Indicators..............................................................................................................7
Rear Panel....................................................................................................................7
Desktop Installation ......................................................................................................8
Rack-mounted Installation ............................................................................................9
3. NETWORK APPLICATION....................................................................................11
Small Workgroup........................................................................................................11
Segment Bridge..........................................................................................................12
Stacking Workgroup ...................................................................................................13
Connecting to the Switch............................................................................................14
4. CONSOLE MANAGEMENT...................................................................................15
Login in the Console Interface....................................................................................15
Main Menu..................................................................................................................16
Status and Counters............................................................................................18
Port Status....................................................................................................18
Port Counters ...............................................................................................19
System Information ......................................................................................20
Switch Static Configuration..................................................................................21
Administration Configuration ........................................................................21
Device Information ................................................................................22
IP Configuration ....................................................................................22
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Port Configuration ........................................................................................24
Trunk Configuration......................................................................................25
Port Mirroring Configuration .........................................................................26
VLAN Configuration......................................................................................28
Priority Configuration....................................................................................33
MAC Address Configuration.........................................................................34
Misc Configuration........................................................................................37
Protocol Related Configuration............................................................................40
STP ..............................................................................................................40
SNMP...........................................................................................................43
LACP............................................................................................................47
IGMP/GVRP.................................................................................................50
802.1x ..........................................................................................................51
System Reset Configuration................................................................................55
Factory Default.............................................................................................55
System Reboot.............................................................................................56
TFTP Configuration......................................................................................56
X-modem Upgrade ..............................................................................................59
5. WEB-BASED MANAGEMENT...............................................................................61
System Login..............................................................................................................62
Port status ..................................................................................................................63
View the Port Information ....................................................................................64
Port Statistics..............................................................................................................64
Administrator ..............................................................................................................65
IP Address...........................................................................................................66
Switch Setting......................................................................................................66
Console Port Information.....................................................................................72
Port Controls........................................................................................................72
Trunking ..............................................................................................................73
Forwarding and Filtering......................................................................................77
VLAN configuration..............................................................................................80
Spanning Tree.....................................................................................................86
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Port Mirroring.......................................................................................................88
SNMP Management ............................................................................................90
Security Manager ................................................................................................91
802.1X.................................................................................................................92
TFTP Update Firmware ..............................................................................................94
Configuration Backup .................................................................................................95
Factory Default ...........................................................................................................96
System Reboot...........................................................................................................97
Panel List....................................................................................................................97
IP Stacking .................................................................................................................97
6. TROUBLESHOOTING .........................................................................................101
7. TECHNICAL SPECIFICATION ............................................................................103
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1. Introduction
Welcome to the World of Network Switching. In the modern business society,
communication and information sharing are fundamental to our life. And computer
networks have proven to be one of the fastest ways of communication.
LevelOne GSW-2491TXM, 24Fast/1Slide-in Slot L2 SNMP Switch, is a multi-port
Switch that can be used to build high-performance switched workgroup networks. This
switch is a store-and-forward device that offers low latency for high-speed networking.
The Switch is targeted at workgroup, department or backbone computing environment.
Figure 1-1. LevelOne GSW-2491TXM, 24Fast/1Slide-in Slot L2 SNMP Switch
LevelOne GSW-2491TXM features a “store-and-forward “ switching scheme. This
allows the switch to auto-learn and store source address in a 8K-entry MAC address
table.
(Medium Dependent Interface) Port is also called an "uplink port". The MDI port
MDI
does not cross the transmit and receive lines, which is done by the regular ports
(MDI ports) that connect to end stations. In general, means connecting to
-X
another Hub or Switch while
MDI
means connecting to a workstation or PC.
MDIX
means that you can connect to another Switch or
Therefore,
Auto MDI/MDIX
workstation without changing non-crossover or crossover cabling.
LevelOne GSW-2491TXM has 24 auto-sensing 10/100Base-TX RJ-45 ports plus one
extension slot for (Optional) 1000Base-TX and miniGBIC module enables
long-distance connection or Gigabit copper module for higher connection speed.
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Features
„
Confirms to IEEE802.3u 10BASE-T, 802.3u 100BASE-TX, 802.3ab 1000BASE-T,
802.3z Gigabit fiber
„
„
24 auto-sensing 10/100Mbps Ethernet RJ-45 ports plus one expansion slot
IEEE802.3x Flow control
¾
¾
Flow control for full duplex
Backpressure for half duplex
Formatted: Bullets and Numbering
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
High back-plane bandwidth 8.8Gbps
Support IEEE802.3ad Port trunk with LACP
Broadcast storm filter supported
Management via single IP address
IGMP support for Multi Media application
Support IEEE 802.1p class of service
Port security supported
Port bandwidth control supported
Support IEEE 802.1d Spanning tree protocol
Supports GVRP function
DHCP client supported
Support IEEE 802.1x user authentication
8K-entry MAC address table
3Mbits packet buffer memory
19” Standard Rack-mounted size
Software Features
Telnet management, web management, Terminal console
management (RS-232)
Management
Software Upgrade
RFC Standard
TFTP and Console firmware upgradeable
RFC 1157 SNMP, RFC 1213 MIB II, RFC 1643 Ethernet
like, RFC 1493 Bridge MIB, RFC 1757 RMON 1, RFC 1215
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Trap, RFC 2674 VLAN MIB, private MIB
Support IEEE802.3ad with LACP function and provide
7-trunk and group member up to 4 ports. The trunk port
within 24-port 10/100TX and extension module...
IEEE802.1d spanning Tree
Port Trunk
Spanning Tree
Port based VLAN
IEEE802.1Q Tag VLAN
VLAN
IEEE802.1v Protocol VLAN (IP, IPX, …etc.)
Static VLAN groups up to 256, Dynamic VLAN group up to
2048, VLAN ID from 0 to 4094.
QOS Policy
Supports 8 priority levels ID for two priority queue
Per system supports high and low queues. The priority
service rule: first come first service, all High before Low,
WRR for High or low weight.
Class of Service
Support 3 settings: “Disable, Low and High priority”. When
set to “Disable”, the income packet will follow QoS policy;
Otherwise, the packet will follow port priority setting to
“High/Low” queue.
Port Based Priority
It supports IGMP snooping for Multi-Media application and
supports 256 groups
IGMP
MAC address filter for ingress and egress packet
Static MAC address lock for source address.
Port Security
Global system supports 3 mirroring types: “RX, TX and
Both packet”. The maximum of port mirror entries is up to
25.
Port Mirror
Bandwidth Control
Per port support Bandwidth control. Per level 100K.
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It can be stack and management by a single IP address.
The master switch can manage slave switch through any
port and the stack group can be up to 8 switches.
Stacking
802.1x
Support IEEE802.1x User-Authentication and can report to
RADIUS server.
¾
¾
¾
¾
Reject
Accept
Authorize
Disable
DHCP
Support DHCP Client
Broadcast storm
Packet filter
Package Contents
LevelOne GSW-2491TXM
Unpack the contents of the
checklist below.
and verify them against the
LevelOne GSW-2491TXM
„
„ Power Cord
„ Four Rubber Feet
„ RS-232 cable
„ User Guide
LevelOne GSW-2491TXM
Four Rubber Feet
RS-232 Cable
Rack-mounted Kit
Power Cord
User Guide
Figure 1-2. Package Contents
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Compare the contents of your LevelOne GSW-2491TXM package with the standard
checklist above. IF any item is missing or damaged, please contact your local dealer
for service.
Ethernet Switching Technology
Ethernet Switching Technology dramatically boosted the total bandwidth of a network,
eliminated congestion problems inherent with CSMA/CD (Carrier Sense multiple
access with Collision Detection) protocol, and greatly reduced unnecessary
transmissions.
This revolutionized networking. First, by allowing two-way, simultaneous transmissions
over the same port (Full-duplex), which essentially doubled the bandwidth. Second, by
reducing the collision domain to a single switch-port, which eliminated the need for
carrier sensing. Third, by using the store-and-forward technology’s approach of
inspecting each packet to intercept corrupt or redundant data, switching eliminated
unnecessary transmission that slow the network. By employing address learning,
which replaced the inefficient receiving port.
Auto-negotiation regulates the speed and duplex of each port, based on the capability
of both devices. Flow-control allows transmission from a 100Mbps node to a 10Mbps
node without loss of data. Auto-negotiation and flow-control may require disablement
for some networking operations involves legacy equipment. Disabling the
auto-negotiation is accomplished by fixing the speed or duplex of a port.
Ethernet Switching Technology supplied higher performance at costs lower than other
solutions. Wider bandwidth, no congestion, and the reduction in traffic is why switching
is replacing expensive routers and inefficient hubs as the ultimate networking solution.
Switching brought a whole new way of thinking to networking.
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2. Hardware Description
This Section mainly describes the hardware of the LevelOne GSW-2491TXM, and
gives a physical and functional overview of this Module Switch.
Physical Dimension
The LevelOne GSW-2491TXM’s physical dimension is
440mmx 161mm x 44.5mm
.
(W x D x H)
Front Panel
The Front Panel of the LevelOne GSW-2491TXM consists of 24x 10/100Base-TX
RJ-45 ports (Auto MDI/MDIX) and one Exp slot. The LED Indicators are also located
on the front panel of the Switch.
Figure 2-1. The Front panel of LevelOne GSW-2491TXM
24x 10/100 N-way auto-sensing for 10Base-T or
RJ-45 Ports (Auto MDI/MDIX):
100Base-TX connections.
[In general,
means connecting to another Hub or Switch while
means
MDI
MDIX
connecting to a workstation or PC. Therefore,
means that you can
Auto MDI/MDIX
connect to another Switch or workstation without changing non-crossover or crossover
cabling. ]
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There are 2 X 1000T(MDU-0140), 2 X mini GBIC(MDU-0142)
Module (Optional):
modules available for the LevelOne GSW-2491TXM.
LED Indicators
The LED Indicators gives real-time information of systematic operation status. The
following table provides descriptions of LED status and their meaning.
Figure 2-2. LED indicators
LED
Status
Green
Off
Description
Power On
Power
Power is not connected
Green
Blinks
Off
The port is connecting with the device.
The port is receiving or transmitting data.
No device attached.
LNK/ACT
FDX/COL
Orange
Blinks
Off
The port is operating in Full-duplex mode.
Collision of Packets occurs in the port.
In half-duplex mode
Table 2-1. The Description of LED Indicators
Rear Panel
The 3-pronged power plug and Ventilation fan are located at the rear Panel of the
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LevelOne GSW-2491TXM as shown in Figure 2-3. The Switch will work with AC in the
range 100-240V AC, 50-60Hz.
Figure 2-3. The Rear Panel of the LevelOne GSW-2491TXM
Desktop Installation
Set the Switch on a sufficiently large flat space with a power outlet nearby. The surface
where you put your Switch should be clean, smooth, level and sturdy. Make sure there
is enough clearance around the Switch to allow attachment of cables, power cord and
allow air circulation.
Attaching Rubber Feet
A. Make sure mounting surface on the bottom of the Switch is grease and dust free.
B. Remove adhesive backing from your Rubber Feet.
C. Apply the Rubber Feet to each corner on the bottom of the Switch. These footpads
can prevent the Switch from shock/vibration.
Figure 2-4. Attaching Rubber Feet to each corner on the bottom of the Switch
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Rack-mounted Installation
The LevelOne GSW-2491TXM come with a rack-mounted kid and can be mounted in
an EIA standard size, 19-inch Rack. The Switch can be placed in a wiring closet with
other equipment.
Perform the following steps to rack mount the switch:
A. Position one bracket to align with the holes on one side of the switch and secure it
with the smaller bracket screws. Then attach the remaining bracket to the other
side of the Switch.
Figure 2-4. Attach mounting brackets with screws
B. After attached both mounting brackets, position the LevelOne GSW-2491TXM in
the rack by lining up the holes in the brackets with the appropriate holes on the
rack. Secure the Switch to the rack with a screwdriver and the rack-mounting
screws.
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Figure 2-5. Mount the switch in an EIA standard 19-inch Rack
For proper ventilation, allow about at least 4 inches (10 cm) of clearance on the
Note:
front and 3.4 inches (8 cm) on the back of the Switch. This is especially important for
enclosed rack installation.
Power On
Connect the power cord to the power socket on the rear panel of the Switch. The other
side of power cord connects to the power outlet. The internal power supply of the
Switch works with voltage range of AC in the 100-240VAC, frequency 50~60Hz. Check
the power indicator on the front panel to see if power is properly supplied.
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3. Network Application
This section provides you a few samples of network topology in which the Switch is
used. In general, the LevelOne GSW-2491TXM is designed as a segment switch. That
is, with its large address table (8000 MAC address) and high performance, it is ideal for
interconnecting networking segments.
PC, workstations, and servers can communicate each other by directly connecting with
LevelOne GSW-2491TXM. The switch automatically learns nodes address, which are
subsequently used to filter and forward all traffic based on the destination address.
By using Uplink port, the Switch can connect with another switch or hub to interconnect
other small-switched workgroups to form a larger switched network. Meanwhile, you
can also use fiber ports to connect switches.
Small Workgroup
The LevelOne GSW-2491TXM can be used as a standalone switch to which personal
computers, server, printer server, are directly connect to form small workgroup.
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Figure 3-1. Small Workgroup Application
Segment Bridge
For enterprise networks where large data broadcasts are constantly processed, this
switch is an ideal solution for department users to connect to the corporate backbone.
In the illustration below, two Ethernet switches with PCs, print server, and local server
attached, are both connect to the Switch. All the devices in this network can
communicate with each other through the Switch. Connecting servers to the Switch
allow other users to access the data on server.
Figure 3-2 Department Bridge Application
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Stacking Workgroup
With stackable technology can unites up to eight individual stackable switches into a
single logical unit, using cables and with stacking software supported. The stack
behaves as a single switching unit that is managed by a master switch elected from
one of the member switches. The master switch automatically creates and updates all
the switching tables. A working stack can accept new members or delete old ones
without service interruption
Each switch in the stack has the capability to behave as a master or subordinate in the
hierarchy. The master switch is elected and serves as the control center for the stack.
The subordinates act as forwarding processors. Each switch is assigned to a one
workgroup ID. Up to eight separate switches can be joined together as a workgroup.
The stack can have switches added and removed without affecting stack performance.
There are no special tools, extra software, or expensive equipment needed to form a
Stacking workgroup. It provides single image management for entire Stack (fewer
devices to manage); management applications represent the Stack as a single device,
and simple point and click management. Stackable technology allows you to increase
the resiliency and the versatility of your network edge to accommodate evolution for
speed and converged applications. Following figures are example of stacking
workgroup application.
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The stackable switch (Master)
Cable connection
(Cat. 5 cable)
The stackable switch
(Slave 01)
Cable connection
(Cat. 5 cable)
The stackable switch
(Slave 02)
Can units up to 8
stackable switches
The stackable switch
(Slave 08)
Figure 3-3. A stacking workgroup application
Connecting to the Switch
The Console port is a female DB-9 connector that enables a connection to a PC or
terminal for monitoring and configuring the Switch. Use the supplied RS-232 cable with
a male DB-9 connector to connect a terminal or PC to the Console port.
The Console configuration (out of band) allows you to set Switch for remote terminal as
if the console terminal were directly connected to it.
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4. Console Management
Login in the Console Interface
When the connection between Switch and PC is ready, turn on the PC and run a
terminal emulation program or
and configure its
communication
Hyper Terminal
to match the following default characteristics of the console port:
parameters
Baud Rate: 9600 bps
Data Bits: 8
Parity: none
Stop Bit: 1
Control flow: None
Figure 3-3. The settings of communication parameters
After finished the parameter settings, click “ “. When the blank screen shows up,
OK
press Enter key to bring out the login prompt. Key in the “
“(default value) for the
key to switch), then press Enter key and the
root
both User name and Password (use
Enter
Main Menu of console management appears. Please see below figure for login screen.
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Console login screen
Main Menu
Console – Menu Line
1. Provide a menu line interface to manage and monitor the switch. User can use
windows Hyper Terminal program through the console port to connect the switch
for configuration.
2. The default user name and password is “
”.
root
Main Menu
There are five selections as follow.
„
„
„
„
Show the status of the switch.
Status and Counters:
Configure the switch.
Switch Static Configuration:
Protocol Related Configuration:
System Reset Configuration:
configuration.
Configure the protocol function.
Formatted
Restart the system or reset switch to default
„
Exit the menu line program.
Logout:
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Main menu line interface
Control Key description:
The control keys provided in all menus:
Move the vernier to next item.
Tab:
Backspace:
Move the vernier to previous item.
Select item.
Enter:
Toggle selected item to next configure or change the value.
Space:
to exit the current action mode.
Esc:
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Status and Counters
In Status and Counters, you can view Port status, counters, and configure system
parameter. You can press the “ ” or “
Tab Backspace
” to choose item, and press “ ”
Enter
key to select item.
Status and Counters main configuration interface
Port Status
It displays status of port. Select the
action to display previous page.
<Previous Page>
And, select the
action to display next page.
<Next page>
„
„
display port connection speed.
Type:
Link:
display port statuses link status. When the port is connecting with the device
and work normally, the link status is “ ”. Opposite is “
”.
UP
Down
„
„
„
„
„
„
„
display port duplex mode.
Speed Duplex:
The port current status.
State:
display the auto negotiation status.
Negotiation:
display the flow control status is “enable” or “disable”.
display backpressure status.
FC:
BP:
display bandwidth In/out control status.
Bandwidth In/Out:
display the port priority status.
Priority:
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„
display the port security status.
Security:
Port status display interface
Port Counters
It displays the current port counter information. Select the
newest port counter information.
action to get
<Refresh>
Port counter information interface
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System Information
It displays the system parameter.
1.
2.
3.
4.
5.
6.
7.
8.
the name of device.
System Name:
where the device is located.
System Location:
System Description:
the name of device type.
the switch’s firmware version.
the switch’s Hardware version.
Firmware Version:
Hardware Version:
the system kernel software version.
Kernel Version:
MAC Address:
The unique hardware address assigned by manufacturer.
display the Module type that you have installed in switch.
Module Information:
System Information interface
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Switch Static Configuration
In Switch Static Configuration, it has 8 main functions – Administration, Port, Trunk,
Port Mirroring, VLAN, Priority, MAC Address, and Misc Configuration. Under each
function, there are more sub-functions. We will describe in following paragraph.
Switch Configuration interface
Administration Configuration
In Administration Configuration, you can configuration system parameter, IP, login
username and password.
Administration Configuration main interface
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Device Information
You can configure the device information.
1. Select
action to configure.
<Edit>
2.
3.
4.
5.
assign the name for the switch.
Name:
a short description for the switch.
Description:
the switch location, ex: Taipei.
Location:
Contact:
the contact person or information.
6. Select
action to save the configuration.
<Save>
Device Information interface
IP Configuration
You can configure the IP for this switch. The system has the default IP address. You
can re-configure or use the default value.
1. Select the
<Edit>
2.
3.
4.
5.
disable or enable the DHCP client function.
DHCP:
assign the switch IP address. The default IP is 192.168.16.1.
IP Address:
Subnet Mask:
assign the switch IP subnet mask.
assign the switch gateway. The default value is 192.168.16.254.
Gateway:
6. Select
action to save the configuration.
<Save>
Always restart the switch after finished the setup.
Note:
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Password Configuration
You can change the console and web management login password.
1. Select the
<Edit>
2.
3.
4.
enter the old password.
Old Password:
enter the new password.
New Password:
reenter the new password for confirmation.
Enter Again:
5. Select the
<Save>
Password Configuration interface
Port Configuration
You can set up every port status.
1. Select
<Edit>
” key to move between items.
2. Use “
Tab
3.
Current port status. The port can be set to disable or enable mode. If the
State:
port setting is disable then will not receive or transmit any packet.
4.
5.
6.
set auto negotiation status of port.
Negotiation:
set the port link speed and duplex mode.
Speed/Duplex:
enable or disable
function (Flow control for full duplex link
Flow control
FC:
mode).
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7.
8.
enable or disable
function (Backpressure for half duplex
Back Pressure
BP:
mode).
per port packet transmission rate control. Per level is
Bandwidth In/ Out:
100Kbps. It supports individual control method of TX and RX.
9.
set port to high or low priority.
Priority:
10.
enable or disable port security function.
Security:
11. Select the
.
<Save>
Port Configuration interface
Trunk Configuration
You can configure port trunk group.
1. Select
2. Using “
3. Using “
<Edit>
” key move to the port that want to be added as trunk group.
Tab
” key to mark the port.
Space
4. Using
key move to
(ex. TRK1, TRK2…) to change the TRK# value to
TRK#
Tab
.
Static
5. Save the configuration by selecting
.
<Save>
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Trunk Configuration interface
Port Mirroring Configuration
The port mirroring is a method for monitor traffic of switched networks. The specific
port can monitor traffic through the mirror ports. The monitored ports in or out traffic will
be duplicated into monitoring port.
1. Select the
<Edit>
2.
select the port-mirroring mode. The default value is “ ”. To
Disable
Mirroring State:
start port mirroring, you must select one of port mirroring mode.
„
„
„
RX packet only
TX packet only
RX:
TX:
RX and TX packet
Both:
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Port Mirroring interface
3.
Set the destination port of mirroring packet. All of the packets of
Analysis port:
mirroring port will be duplicated and sent to Analysis port.
4. Use “ ” key to mark the mirroring port can.
Space
5. Select the
.
<Save>
Port Mirroring interface
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VLAN Configuration
You can configure VLAN in VLAN Configuration. There are four functions in VLAN
Configuration mode: VLAN Configuration, Create a VLAN Group, Edit/Delete VLAN
Group and Group Sorted Node. Follow the below description to configure VLAN.
VLAN Configuration Main interface
VLAN Configure
Before starting to configure VLAN, you must select the VLAN mode in VLAN Configure
function. Otherwise, user cannot create any new VLAN.
1. Select the
.
<Edit>
2. Select the VLAN mode by using “ ” key. There are two VLAN modes:
Space
PortBase mode and 802.1Q mode.
„
configuration VLAN ID, Ingress Filter, and Acceptable
802.1Q VLAN mode:
Frame Type.
—
—
Type the PVID.
VLAN ID (Port VID: 1~255):
It matches that Ingress Filtering Rule 1 on web. Only
Ingress Filter:
forward packets with VID matching this port’s configured VID. Press
” key to choose forward or drop the frame that VID not matching
“
Space
this port’s configured VID.
—
It matches that Ingress Filtering Rule 2 on web.
Acceptable Frame type:
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Drop untagged frame. Press “
untagged frame.
” key to select drop or forward the
Space
3. Select
to save the configuration.
<Save>
VLAN Configure interface
Create VLAN Group
„
Create Port-Based VLAN
1. Select
<Edit>.
2.
3.
4.
Type a name for the new VLAN, ex: VLAN01.
VLAN Name:
Type the VLAN group ID. The group ID rang is from 1 to 4094.
Group ID:
Press ”
Space
” key to change the member value. There are two types to
Member:
selected:
a.
b.
the port is a member port.
Member:
it means that port is NOT a member port.
NO:
5. Press
6. Select
NOTE:
key to go back action menu line.
“ESC”
to save the configuration.
<Save>
If you had configured the trunk groups, you can see it (ex: TRK1, TRK2…)
in the port list. You also can configure the trunk group as the VLAN member.
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Create VLAN Group: PortBase interface
„
Create 802.1Q VLAN
Enable security VLAN setting:
1.
select to enable or disable security VLAN group.
When you select to enable security VLAN group, only the members in this VLAN
group can access to the switch. The steps of setting security VLAN refer to the
following step 2~ 8. After you have configured the security VLAN group, you can
continue to create other VLAN groups. When you don’t select to configure security
VLAN group, then just create VLAN group refer to following step 2 ~ 8.
There is only one security VLAN group.
Note:
Formatted: Bullets and Numbering
2. Select
.
<Edit>
3.
4.
Type a name for the new VLAN, ex: VLAN01.
VLAN Name:
Type a VID (between 1~4094). The default is 1. There are 256 VLAN
VLAN ID:
groups to provided configure.
Press “
5.
6.
” key to choose protocols type.
Protocol VLAN:
Press “
Space
” key to change the member value.
Member:
Space
this port is the member port of this VLAN group and outgoing
„
„
„
Untagged:
frames are NO VLAN-Tagged frames.
this port is the member port of this VLAN group and outgoing frames
Tagged:
are VLAN-Tagged frames.
it means that the port is NOT member of this VLAN group.
NO:
Formatted: Bullets and Numbering
7. Press “
” key to go back action menu line.
ESC
8. Select
to save the configuration.
<Save>
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Create VLAN Group: 802.1Q interface
Edit / Delete VLAN Group
User can edit or delete a VLAN group.
1. Select or action.
<Edit> <Delete>
2. Select the VLAN group that you want to edit or delete, then press enter.
3. In action, user can modify the member port and remove some member
<Edit>
ports from this VLAN group.
4. After edit or delete the VLAN, select
NOTE:
action to save all configures value.
<Save>
1. The VLAN Name and VLAN ID cannot modify.
2. In 802.1Q VLAN mode, the default VLAN can’t be deleting.
3. In Port Base VLAN mode, there is no default VLAN.
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Edit/Delete a VLAN Group interface
Group Sorted Mode
You can select VLAN groups sorted mode: (1)
(2)
.
VLAN ID
Name
In the Edit/Delete a VLAN group page will display the result.
1. Select
<Edit>
” key to select the sort mode.
2. Use “
Space
3. Select
<Save>
Group Sorted Mode interface
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Priority Configuration
You can configure port priority level. There are 0~7-priority level can map to high or low
queue.
1. Select
.
<Edit>
Space
2. Press “
” key to select the priority level mapping to high or low queue.
3.
select the mode to process incoming packets.
Qos Mode:
„
„
First Come first service: the switch will process the packet that is coming first.
All High Before low: the packet priority is high will be process before the
packet priority is low.
„
„
„
„
„
„
Weight Round Ration 2:1: the switch will process 2 high priority packet first,
the process 1 low priority packet.
Weight Round Ration 3:1: the switch will process 3 high priority packet first,
the process 1 low priority packet.
Weight Round Ration 4:1: the switch will process 4 high priority packet first,
the process 1 low priority packet.
Weight Round Ration 5:1: the switch will process 5 high priority packet first,
the process 1 low priority packet.
Weight Round Ration 6:1: the switch will process 6 high priority packet first,
the process 1 low priority packet.
Weight Round Ration 7:1: the switch will process 7 high priority packet first,
the process 1 low priority packet.
4. Press “
” goes back action menu line.
ESC
5. Select
to save all configure value.
<Save>
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Priority Configuration interface
MAC Address Configuration
When you add a static MAC address, it remains in the switch's address table,
regardless of whether the device is physically connected to the switch. This saves the
switch from having to re-learn a device's MAC address when the disconnected or
powered-off device is active on the network again. You can add / modify / delete a
static MAC address.
MAC Address Configuration interface
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Static MAC Address
„
Add the Static MAC Address
You can add static MAC address in switch MAC table.
1. Select
Æ
key to add the static MAC address.
<Add>
<Edit>
2.
Enter the MAC address of the port that should permanently
MAC Address:
forward traffic, regardless of the device network activity.
3.
4.
press “
” key to select the port number.
enter the Mac address’ s VLAD ID, if the Mac address belong to any
Port No.:
VLAN ID:
Space
VLAN group.
Formatted: Bullets and Numbering
5. Press “
” to go back action menu line.
ESC
6. Select
to save all configure value.
<Save>
Add Static MAC Address interface
„
Edit static MAC address
1. Select
.
<Edit>
2. Choose the MAC address that you want to modify and then press “
”.
Enter
3. Press
key to modify.
<Edit>
4. Press “
” to go back action menu line.
ESC
5. Select
to save all configure value.
<Save>
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„
Delete static MAC address
1. Select key.
<Delete>
2. Choose the MAC address that you want to delete and then press “
”.
Enter
3. When pressing “
” will complete deletion.
Enter
Filtering MAC Address
You can add, delete, and edit filtering MAC address.
Filtering MAC Address interface
„
Add the Filtering MAC Address
1. Select
Æ
key to add the static MAC address.
<Edit>
<Add>
2.
Enter the MAC address that you want to filter.
MAC Address:
3. Press “
” to go back action menu line.
ESC
4. Select
to save all configure value.
<Save>
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Add Filtering MAC Address interface
„
Edit Filtering MAC address
1. Select
key to modify a static Filtering address.
<Edit>
2. Choose the MAC address that you want to modify and then press “
”.
Enter
3. Select
4. Press “
5. Select
key to modify.
<Edit>
” to go back action menu line
ESC
to save all configure value.
<Save>
„
Delete Filtering MAC address
1. Select to delete a Filtering MAC address.
<Delete>
2. Choose the MAC address that you want to delete and then press “
”.
Enter
3. After delete Filtering MAC address, you have to select
deleting operation.
to complete the
<Save>
Misc Configuration
You can configure the switch parameters and stacking function. The stacking function
provides you can centralize the control of the switch in the network. For the manager
personal, he/she can save the time and easily on switches controlling.
„
MAC address table refresh time setting. Type the
MAC Address Ageing Time:
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number of seconds that an inactive MAC address remains in the switch’s address
table. The valid range is 0, 300~765 seconds. Default is 300 seconds.
„
„
„
„
configure the broadcast storm filter mode. The
Broadcast Storm Filter mode:
valid threshold values are 5%, 10%, 15%, 20%, 25%, and N/A. The port will be
block cause of broadcast packet is over the percentage of traffic.
Limit the packets queuing time in switch. If
Max Bridge Transmit Delay Bound:
enable, the packets queued exceed will be drop. Press
key to set the time.
Space
This valid value are 1sec, 2sec, 4sec and off. Default is off.
Limit the low priority packets queuing time in switch. If
Low Queue Delay Bound:
enable, the low priority packet stays in switch exceed Low Queue Max Delay Time,
it will be sent. Press key to enable or disable this function.
Space
Low Queue Max Delay Time:
switch. Default Max Delay Time is 255ms. The valid range is 1~255 ms.
Make sure of “Max bridge transit delay bound control” is enabled before enable
To set the time that low priority packets queuing in
NOTE:
Low Queue Delay Bound, because Low Queue Delay Bound must be work under “Max
bridge transit delay bound control” is enabled situation.
„
„
Disable – In half duplex, if happens collision, the
Collisions Retry Forever:
switch will retry 48 times and then drop frame. Enable – In half duplex, if happens
collision, the switch will retry forever
This Hash Algorithm is for hardware maintain on MAC table
Hash Algorithm:
calculation. Provide CRC or Direct Map
Disable or Enable
„
„
IFG compensation:
IP Stacking Group ID (0…65535):
must assigned the same stacking group ID to be stacked as a group.
enabling/disabling the stacking function. There are three
assign the stacking group ID. The switches
„
IP Stacking Mode:
stacking modes. Any port on the switch can be used to stack. To configure the
switch in stacking group, please use the Web GUI configuration interface.
¾
¾
The stacking function is not working.
Disable:
Master:
There must have a leader switch to control all other switches in
stacking group. You can only assign one switch to be the master switch in
one stacking group. When the stacking group is set up, the master switch will
control all switches in the stacking group.
¾
besides the master switch, rest of the switches are called slave switch
Slave:
in stacking group. When the stacking group is set up, you can only configure
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the slave switches through the master switch.
Note:
1. Before configuring the stacking function, make sure all stack switches are in
the same network.
2. Configure stacking function; you must configure the master switch first.
3. After you have configured the stacking function, use Cat. 5 cable to connect
every switch in the stacking group.
4. To remove the switch from stacking group, you must remove the salve switch
first. When all slave switches are removed, you can remove the master switch
from stacking group.
Misc Configuration interface
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Protocol Related Configuration
You can configure Spanning Tree Protocol, SNMP, LACP, IGMP/GVRP, and 802.1x in
Protocol Relate Configuration section.
Protocol Relate Configuration interface
STP
Spanning tree is a link management protocol that provides path redundancy
while preventing undesirable loops in the network.
STP Configuration interface
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STP Setup
You must enable Spanning Tree function before configure STP function.
1. Select
<Edit>
” key to select the option.
2. Use “
Space
3. Select
.
<Save>
STP Setup interface
System Configuration
You can configure the STP system parameter after enable the STP function.
view spanning tree information about the Root Bridge on the left.
You can
1. Select
<Edit>
2.
3.
4.
assign path priority number.
Priority:
the maximum path age
Max Age:
the time that controls switch sends out the BPDU packet to check
Hello Time:
STP current status.
5.
forward delay time.
Forward Delay Time:
6. Select
.
<Save>
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STP System Configuration interface
Per Port Setting
1. Select
.
<Edit>
2.
specifies the path cost of the port that switch uses to determine which
Path Cost:
port are the forwarding ports.
3.
This is mean port priority; you can make it more or less likely to become
Priority:
the root port.
4. Press “
5. Select
” goes back action menu line.
ESC
to save all configure value.
<Save>
6. On the action menu line you can press
to configure port9 ~ port26,
<Next Page>
press
return to previous page.
<Previous Page>
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SNMP System Options
1. Press
.
<Edit>
2.
3.
4.
assign a name for the switch.
System Name:
Type the name of contact person or organization.
Type the location of the switch.
System Contact:
System Location:
5. Press “
” goes back action menu line.
ESC
6. Press
to save configure value.
<Save>
SNMP System Options interface
Community Strings
„
Add Community Strings
1. Select
2. Select
<Add>
<Edit>
3.
4.
type the name of community strings.
Community Name:
enable the rights is read only or read/write.
Write Access:
„
„
Read only, enables requests accompanied by this string to
Read only:
display MIB-object information.
Read write, enables requests accompanied by this string to
Read/Write:
display MIB-object information and to set MIB objects.
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Add Community Strings interface
„
Edit Community Name
1. Select
<Edit>
2. Choose the item that you want to modify and then press “
”
Enter .
3.
4.
type the new name.
Community Name:
Write Access:
Press “
” key to change the right.
Space
5. Select
.
<Save>
Edit Community Strings interface
„
Delete Community Name
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1. Select
.
<Delete>
2. Choose the community name that you want to delete and then press “
”.
Enter
3. When pressing “
” will complete deletion.
Enter
Trap Managers
A trap manager is a management station that receives traps, the system alerts
generated by the switch. If no trap manager is defined, no traps will issue. Create a
trap manager by entering the IP address of the station and a community string.
Trap Managers interface
„
Add the trap manager
1. Select
Æ
to add the trap manager.
<Edit>
<Add>
2.
3.
enter the IP address of trap manager.
IP:
enter the community string.
Community Name:
4. Press “
” go back to actions menu line
ESC
5. Select
to save all configure.
<Save>
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Add Trap Manager interface
„
Delete Trap Manager
1. Select
<Delete>
2. Choose the trap manager that you want to delete and then press “
”.
Enter
3. When pressing “
” will complete deletion.
Enter
LACP
The Link Aggregation Control Protocol (LACP) provides a standardized means for
exchanging information between Partner Systems on a link to allow their Link
Aggregation Control instances to reach agreement on the identity of the Link
Aggregation Group to which the link belongs, move the link to that Link Aggregation
Group, and enable its transmission and reception functions in an orderly manner. Link
aggregation lets you group up to eight consecutive ports into a single dedicated
connection. This feature can expand bandwidth to a device on the network.
LACP
more detail information refers to IEEE 802.3ad.
operation requires full-duplex mode,
You can configure and view all the LACP status.
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LACP Configuration interface
Working Ports Setting
1. Select
<Edit>
Display the trunk group ID.
2.
3.
Group:
LACP:
Press “
Space
” key to enable or disable LACP (Link Aggregation Control
Protocol) support. When LACP enable, the group is LACP static trunk group.
When LACP disable, the group is local static trunk group.
4.
The max number of ports can be aggregated at the same
Working Port Num:
time. If LACP static trunk group, the exceed ports is standby and able to
aggregate if work ports fail. If it is local static trunk group, the number must be the
same as group ports.
5. Select
<Save>
Before set LACP support, you have to set trunk group on the Trunk
NOTE:
Configuration.
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LACP Working Ports configuration interface
LACP State Activity
1. Select
<Edit>
2. Use “
” key to select the Port State Activity.
Space
Active:
Passive:
„
„
The port automatically sends LACP protocol packets.
The port does not automatically send LACP protocol packets, and
responds only if it receives LACP protocol packets from the opposite device.
3. Select
.
<Save>
LACP State Activity configuration interface
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Group Status
When you setting trunk group, you can see the relation information in here.
LACP Group State interface
IGMP/GVRP
You can enable or disable the IGMP/GVRP (GARP VLAN Registration
Protocol).
1. Select
<Edit>
” key to change the value
2. Use “
Space
3. Select
<Save>
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802.1x Setup interface
System Configuration
After enabling the IEEE 802.1X function, you can configure the parameters of this
function.
1. Select
<Edit>
2.
3.
set the Radius Server IP address.
Radius Server IP:
set an encryption key for using during authentication sessions with
Shared Key:
the specified radius server. This key must match the encryption key used on the
Radius Server.
4.
5.
set the identifier for the radius client.
NAS, Identifier:
set the UDP destination port for authentication requests to the
Server Port:
specified Radius Server.
6.
set the UDP destination port for accounting requests to the
Accounting Port:
specified Radius Server.
7. Select
<Save>
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802.1x System Configuration interface
Per Port Configuration
The State provides Disable, Accept, Reject and Authorize. Use “
the state value.
” key change
Space
802.1x Per Port Setting interface
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Misc Configuration
1. Select
<Edit>
Quiet period:
supplicant.
2.
3.
4.
5.
6.
7.
set the period during which the port doesn’t try to acquire a
set the period the port wait for retransmit next EAPOL PDU during an
TX period:
authentication session.
set the period of time the switch wait for a supplicant
Supplicant timeout:
response to an EAP request.
set the period of time the switch wait for a server response to an
Server timeout:
authentication request.
Reauthorize Maximum:
set the number of authentication that must time-out
before authentication fails and the authentication session ends.
set the period of time after which clients connected must be
Reauthorize period:
re-authenticated.
8. Select
<Save>
802.1x Misc Configuration interface
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System Reset Configuration
System Reset Configuration interface
Factory Default
Reset switch to default configuration.
Press “ ”, switch will load default setting. After finished load default setting, switch will
Y
reboot automatically.
Factory Default interface
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System Reboot
Reboot the switch in software reset.
TFTP Configuration
It provides user to update firmware or restore EEPROM value or upload current
EEPROM value.
TFTP Update Firmware interface
Update Firmware
It provides user uses TFTP to update firmware.
1. Start the TFTP server, and copy firmware update version image file to TFTP server.
2. Select
.
<Edit>
3.
4.
type the IP of TFTP server.
TFTP Server IP:
type the image file name.
Firmware File Name:
5. Press “
” goes back to action line.
ESC
6. Select
, it will start to download the image file.
<Save>
7. When save successfully, the image file download finished, too.
8. Restart switch.
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Update Firmware interface
TFTP Restore Configuration
You can restore EEPROM value, which saved in TFTP server, from TFTP server.
1. Start the TFTP server.
2. Select
.
<Edit>
3.
4.
type the IP of TFTP server.
TFTP Server IP:
type the image file name.
Restore File Name:
5. Press “
” back to action menu line.
ESC
6. Select
, it will start to download the image file.
<Save>
7. When save successfully, the image file download finished too.
8. Restart switch.
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TFTP Restore Configuration interface
TFTP Backup Configuration
You can save current EEPROM value to TFTP server as backup. The backup file can
be restore from TFTP server when you need.
1. Start the TFTP server.
2. Select
.
<Edit>
3.
4.
type the IP of TFTP server.
TFTP Server IP:
type the image file name.
Backup File Name:
5. Press “
” back to action line.
ESC
6. Select
key, it will start to upload the image file.
<Save>
7. When save successfully, the image file upload finished too.
8. Restart switch.
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TFTP Backup Configuration interface
X-modem Upgrade
Before using X-modem upgrade, disconnect terminal and modify baud rate to
57600bps, then connect again.
1. Press “ ” key to start upgrading from X-modem.
X
2. You will see the following screen displays.
3. Select “
4. Select "
5. Select "
" under
menu from menu bar.
send file
Transfer
" button to select the path.
browse
" of protocol and click "
" button.
Send
1K X-modem
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6. After successfully upgraded the new firmware, please modify baud rate to
9600bps.
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5. Web-Based Management
This section introduces the configuration and functions of the Web-Based
management.
About Web-based Management
Inside the CPU board of the switch exists an embedded HTML web site residing in
flash memory. It offers advanced management features and allow users to manage the
switch from anywhere on the network through a standard browser such as Microsoft
Internet Explorer.
The Web-Based Management supports Internet Explorer 5.0. It is based on Java
Applets with an aim to reduce network bandwidth consumption, enhance access
speed and present an easy viewing screen.
By default, IE5.0 or later version does not allow Java Applets to open sockets.
Note:
The user has to explicitly modify the browser setting to enable Java Applets to use
network ports.
Preparing for Web Management
Before to use web management, you can use console to login the Switch checking the
default IP of the Switch. Please refer to
Chapter for console
Console Management
login. If you need change IP address in first time, you can use console mode to modify
it. The default value is as below:
IP Address:
192.168.16.1
Subnet Mask:
255.255.255.0
Default Gateway:
192.168.16.254
User Name:
root
Password:
root
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Online Help
Help
You can click
configuring.
button when you have any configuration question during the
System Login
1. Launch the Internet Explorer.
2. Type http:// and the IP address of the LevelOne GSW-2491TXM. Press “
3. The login screen appears.
”.
Enter
4. Key in the user name and password. The default user name and password is
”.
“
root
5. Click “
” or ”
”, then the home screen of the Web-based management
OK
Enter
appears.
LevelOne GSW-2491TXM
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Port status
In Port status, you can view every port status that depended on user setting and the
negotiation result.
1.
2.
3.
“Down” is “No Link”. “UP” is “Link”.
Link:
display port statuses “disable” or “enable”. “Unlink” will be treated as “off ”.
State:
display the auto negotiation mode: auto/force/Nway-force.
Auto Negotiation:
“Config” means the value that user configured. “Actual” means the current value of
the port.
4.
5.
display port connection speed. “Config” means the value that user
Speed Duplex:
configured. “Actual” means the current value of the port.
Full: display the flow control status is “enable” or “disable” in full
Flow Control:
mode. “Config” means the value that user configured. “Actual” means the current
value of the port.
6.
Display the Back Pressure status setting. “Config” means the
Back Pressure:
value that user configured. “Actual” means the current value of the port.
display the port incoming and outgoing bandwidth.
7.
8.
9.
Bandwidth:
Formatted: Bullets and Numbering
display the port static priority status is “High” or “Low” or “Disable”.
Priority:
display the port security is “enable” or “disable”.
Port Security:
Port Status interface
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View the Port Information
You can direct click the port on the Switch figure on the top of web page. Then, you will
see the port information.
Port information interface
Port Statistics
The following information provides a view of the current port statistic information.
Clear
Click
button to clean all counts.
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Port Statistics
Administrator
In Administrator function, it provides the following functions:
IP Configuration, Switch Settings, Console Port Information, Port Controls,
Trunking, Forwarding and Filtering, VLAN Configuration, Spanning Tree, Port
Mirroring, SNMP Management, Security Manager, and 802.1x Configuration.
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Administrator interface
IP Address
Apply
User can configure the IP Settings and DHCP client function, than clicks
After reset the IP address, you must reboot the switch.
button.
IP configuration interface
Switch Setting
In Switch setting, it has three parts of setting – Basic, Advance, and Misc Config. We
will describe the configure detail in following.
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Basic Switch Settings
In Basic Switch Setting, it displays the switch basic information.
„
„
„
„
„
„
„
„
the name of switch.
System Name:
the switch physical location.
System Location:
System Description:
the description of switch.
the switch’s firmware version.
Firmware Version:
the kernel software version.
Kernel Version:
the switch hardware version.
Hardware version:
the unique hardware address assigned by manufacturer (default)
MAC Address:
the module information, if the switch doesn’t install the module, then this
Module:
column will not display any information.
Switch basic setting interface
Advanced Setting
In Advanced setting, it has two sections – MAC Table Address Entry and Priority
Apply
Queue Service. After the configuration, click
configuration.
button to complete the
„
MAC Address Table Entry
fill in the number of seconds that an inactive MAC address
—
Age-out Time:
remains in the switch's address table. The valid range is 300~765 seconds.
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Default is 300 seconds.
—
—
limit the packets queuing time
Max Bridge Transmit Delay Bound Control:
in switch. If enable, the packets queued exceed will be drop. This valid value
are 1sec, 2 sec, 4 sec and off.
limit the low priority packets queuing time
Enable Low Queue Delay Bound:
in switch. If the low priority packet stays in switch exceed Max Delay Time, it
will be sent. The valid range is 1~255 ms.
NOTE: Make sure of “Max bridge transit delay bound control” is enabled before enable
Delay Bound, because Enable Delay Bound must be work under “Max bridge transit delay
bound control is enabled” situation.
—
configure broadcast storm control. Enable it and set
Broadcast Storm Filter:
the upper threshold for individual ports. The threshold is the percentage of the
port's total bandwidth used by broadcast traffic. When broadcast traffic for a
port rises above the threshold you set, broadcast storm control becomes
active. The valid threshold value are 5%, 10%, 15%, 20%, 25% and off.
Switch Advanced setting interface
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„
select the priority queue service type.
Priority Queue Service settings:
—
—
—
the sequence of packets sent is depend on arrive
First Come First Service:
order.
the high priority packets sent before low priority
All High before Low:
packets.
select the preference given to packets in the
Weighted Round Ratio:
switch's high-priority queue. These options represent the number of high
priority packets sent before one low priority packet is sent. For example, 5
High: 2 Low means that the switch sends 5 high priority packets before
sending 2 low priority packet.
„
0~7 priority level can map to high or low
Qos Policy: High Priority Levels:
queue.
Miscellaneous Setting
„
disable is in half duplex. If happen collision will retry 48
Collisions Retry Forever:
times and then drop frame. Enable is in half duplex. If happen collision will retry
forever.
„
„
CRC Hash or Direct Map for MAC address learning algorithm
Hash Algorithm:
Internal Packet Gap time compensation configure. Select to
IFG Compensation:
“Enable” or “Disable”.
„
„
enable or disable 802.1x protocol.
802.1x Protocol:
recognizes different queries from clients or servers to decide
IGMP Query Mode:
which Query will be the first priority. The modes are:
a.
chooses the switch that has the smallest IP address to be set for
Auto Mode:
the IGMP Query mode.
b.
c.
enables the switch to be the IGMP Querier.
Enable Mode:
disables all other switches from being the IGMP Querier.
Disable Mode:
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Switch Misc Config setting interface
„
IGMP Theory of Operation
The following three topologies detail how IGMP Query works and to be configured
within a network:
1. Auto mode needs to be enabled when
the router’s IP address is smaller than
other switches in the subnet.
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2. IGMP needs to be enabled when the
router’s IP address is not smaller than
other switches in the subnet. This
Router supports IGMP protocol, but
IGMP has to be enabled, and the
Router has to be the Querier.
3. The following topology must
be set when the IP address of
the switch is not the smallest in
the subnet. The network will
cause a multi-cast storm from the
IGMP client report if it is in Auto
mode. All switches must be in
disable mode when the VOD
server is configured for IGMP
Querier.
It is suggested that the VOD server switch have the smallest IP address.
Note:
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Console Port Information
Console is a standard UART interface to communicate with Serial Port. User can use
windows HyperTerminal program to link the switch. Please refer to
Console
Æ
for detail steps.
Console login
Management
Console port information shows as follow:
Bits per seconds: 9600
Data bits: 8
Parity: none
Stop Bits: 1
Flow control: none
Console Port Information interface
Port Controls
You can change the port status.
1. Select the port by scroll the list in
column.
Port
2.
3.
User can disable or enable this port control.
State:
User can set auto negotiation mode is Auto, Nway (specify the
Negotiation:
speed/duplex on this port and enable auto-negotiation), Force of the port.
4.
5.
6.
7.
8.
set the speed of each port.
Speed:
set full-duplex or half-duplex mode of the port.
Duplex:
set flow control function is
or in Full Duplex mode.
ON OFF
Flows control:
Back Pressure:
set Back Pressure is
or in Half Duplex mode.
ON OFF
The port1 ~ port 24, supports port ingress and egress rate control.
Band Width:
For example, assume port 1 is 10Mbps, users can set it’s effective egress rate is
1Mbps, ingress rate is 500Kbps. The switch will perform flow control or Back
Pressure to confine the ingress rate to meet the specified rate.
„
fill in the port effective ingress rate. The valid range is 0 ~ 1000. The unit is
In:
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100K. 0: disable rate control. 1 ~ 1000: valid rate value.
fill in the port effective egress rate. The valid range is 0~1000. The unit is
„
Out:
100K. 0: disable rate control. 1 ~ 1000: valid rate value.
9.
this static priority based on port, if you set the port is high priority, income
Priority:
frame from this port always high priority frame.
when the port is in security mode, the port will be “locked” without
10.
Security:
permission of address learning. Only the incoming packets with SMAC already
existing in the address table can be forwarded normally. User can disable the port
from learning any new MAC addresses, and then use the static MAC addresses
screen to define a list of MAC addresses that can use the secure port.
Apply
11.Click
button to apply all configuration.
12.When you select the port, you can see port current configure shows in below
column.
Port Control interface
Trunking
The Link Aggregation Control Protocol (LACP) provides a standardized means for
exchanging information between Partner Systems on a link to allow their Link
Aggregation Control instances to reach agreement on the identity of the Link
Aggregation Group to which the link belongs, move the link to that Link Aggregation
Group, and enable its transmission and reception functions in an orderly manner. Link
aggregation lets you group up to eight consecutive ports into a single dedicated
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connection. This feature can expand bandwidth to a device on the network.
LACP
more detail information refers to IEEE
operation requires full-duplex mode,
802.3ad.
Aggregator setting
1.
2.
a value used to identify the active LACP. The switch with the
System Priority:
lowest value has the highest priority and is selected as the active LACP.
There are seven trunk groups to provided configure. Choose the
Group ID:
Select
"
" and click
Group ID
.
3.
4.
If enable, the group is LACP static trunk group. If disable, the group is local
LACP:
static trunk group. All ports support LACP dynamic trunking group. If connecting to
the device that also supports LACP, the LACP dynamic trunking group will be
created automatically.
allow max four ports can be aggregated at the same time. If LACP
Work ports:
static trunk group, the exceed ports are standby and able to aggregate if work
ports fail. If it is local static trunk group, the number must be as same as the group
member ports.
5. Select the ports to join the trunk group. Allow max four ports can be aggregated at
Add
the same time. Click
button to add the port. To remove unwanted ports,
Remove
select the port and click
button.
6. If LACP enable, you can configure LACP Active/Passive status in each ports on
State Activity page.
Apply
7. Click
8. Use
.
Delete
Delete
button to delete Trunk Group. Select the Group ID and click
button.
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Trunking—Aggregator Setting interface
Aggregator Information
When you had setup the LACP aggregator, you will see relation information in here.
Trunking – Aggregator Information interface
Aggregator Information State Activity
When you had setup the LACP aggregator, you can configure port state activity. You
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Apply
can mark or un-mark the port. When you mark the port and click
port state activity will change to . Opposite is
button the
.
Passive
Active
1.
2.
The port automatically sends LACP protocol packets.
Active:
The port does not automatically send LACP protocol packets, and
Passive:
responds only if it receives LACP protocol packets from the opposite device.
Note:
1. A link having either two active LACP ports or one active port can perform
dynamic LACP trunking.
2. A link has two passive LACP ports will not perform dynamic LACP trunking
because both ports are waiting for and LACP protocol packet from the opposite
device.
3. If you are active LACP’s actor, when you are select trunking port, the active
status will be created automatically.
Trunking – State Activity interface
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Forwarding and Filtering
IGMP Snooping
The switch support IP multicast, you can enable IGMP protocol on web management’s
switch setting advanced page, then display the IGMP snooping information in this page,
you can view difference multicast group VID and member port in here, IP multicast
addresses range from 224.0.0.0 through 239.255.255.255.
The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet
Protocol (IP) suite. IP manages multicast traffic by using switches, routers, and hosts
that support IGMP. Enabling IGMP allows the ports to detect IGMP queries and report
packets and manage IP multicast traffic through the switch. IGMP have three
fundamental types of message as follows:
Message
Query
Description
A message sent from the querier (IGMP router or switch) asking for a
response from each host belonging to the multicast group.
A message sent by a host to the querier to indicate that the host
wants to be or is a member of a given group indicated in the report
message.
Report
A message sent by a host to the querier to indicate that the host has
quit to be a member of a specific multicast group.
Leave
Group
When you enable the IGMP Snooping, you will see the relate information show as
following figure.
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IGMP Snooping interface
Static MAC Address
When you add a static MAC address, it remains in the switch's address table,
regardless of whether the device is physically connected to the switch. This saves the
switch from having to re-learn a device's MAC address when the disconnected or
powered-off device is active on the network again.
1. In
column, enter the MAC address to and from which the port
MAC Address
should permanently forward traffic, regardless of the device network activity.
2. In the box, select a port number.
Port Number
If tag-based (IEEE 802.1Q) VLANs are set up on the switch, static
3.
VLAN ID:
addresses are associated with individual VLANs. Type the VID (tag-based VLANs)
to associate with the MAC address.
Add
4. Click
5. Use
button.
Delete
button to delete unwanted MAC address.
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Static MAC Address interface
MAC filtering
MAC address filtering allows the switch to drop unwanted traffic. Traffic is filtered
based on the destination addresses.
1. In
box, enter the MAC address that wants to filter.
MAC Address
2.
If tag-based (802.1Q) VLAN are set up on the switch, in the VLAN ID
VLAN ID:
box, type the VID to associate with the MAC address.
Add
3. Click
4. Use
button.
Delete
button to delete unwanted MAC address.
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MAC Filtering interface
VLAN configuration
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast domain. It
allows you to isolate network traffic so only members of the VLAN receive traffic from
the same VLAN members. Basically, creating a VLAN from a switch is logically
equivalent of reconnecting a group of network devices to another Layer 2 switch.
However, all the network devices are still plug into the same switch physically.
The switch supports port-based, 802.1Q (tagged-based) and protocol-base VLAN in
web management page. In the default configuration, VLAN support is “disable”.
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VLAN Configuration interface
Port-based VLAN
Packets can go among only members of the same VLAN group. Note all unselected
ports are treated as belonging to another single VLAN. If the port-based VLAN enabled,
the VLAN-tagging is ignored.
In order for an end station to send packets to different VLANs, it itself has to be either
capable of tagging packets it sends with VLAN tags or attached to a VLAN-aware
bridge that is capable of classifying and tagging the packet with different VLAN ID
based on not only default PVID but also other information about the packet, such as
the protocol.
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VLAN – PortBase interface
Add
1. Click
to create a new VLAN group.
2. Enter the VLAN name, group ID and select the members of VLAN group.
Apply
3. Click
.
VLAN—PortBase Add interface
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4. You will see the VLAN displays.
Next Page
5. If the groups’ list is over one page, you can click
to view other VLAN
groups.
Delete
6. Use
7. Use
button to delete unwanted VLAN.
Edit
button to modify existing VLAN group.
802.1Q VLAN
Tagged-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is
possible to create a VLAN across devices from different switch venders. IEEE 802.1Q
VLAN uses a technique to insert a “tag” into the Ethernet frames. Tag contains a VLAN
Identifier (VID) that indicates the VLAN numbers.
You can create Tag-based VLAN, and enable or disable GVRP protocol. There are
256 VLAN groups to provide configure. Enable 802.1Q VLAN, the all ports on the
switch belong to default VLAN, VID is 1. The default VLAN can’t be deleting.
GVRP allows automatic VLAN configuration between the switch and nodes. If the
switch is connected to a device with GVRP enabled, you can send a GVRP request
using the VID of a VLAN defined on the switch; the switch will automatically add that
device to the existing VLAN.
802.1q VLAN interface
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„
Basic
Add
1. Click
button.
Enable GVRP Protocol:
assign a name for the new VLAN.
2.
3.
4.
5.
check the check box to enable GVRP protocol.
Group Name:
fill in a VLAN ID (between 2-4094). The default is 1.
VLAN ID:
choose the protocol type. Default is NONE.
Protocol VLAN:
6. From the Available ports box, select ports to add to the switch and click
Add
button. If the trunk groups exist, you can see it in here (ex: TRK1, TRK2…),
and you can configure it is the member of the VLAN or not.
802.1q VLAN –Add interface
Next
7. Click
. Then you will see the page as follow.
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8. To set the outgoing frames are VLAN-Tagged frames or untagged. Then click
Apply
.
„
„
Tag: outgoing frames with VLAN-Tagged.
Untag: outgoing frames without VLAN-Tagged.
„
Configure port VID settings
Port VID:
Formatted: Bullets and Numbering
1.
2.
enter the port VLAN ID.
Port VLAN ID:
Ingress filtering lets frames belonging to a specific VLAN to be
Ingress Filtering:
forwarded if the port belongs to that VLAN.
„
„
: Forward only packets with VID matching this port's configured VID.
Enable
: Disable Ingress filter function
Disable
3.
4.
Acceptable Frame type:
„
Only packet with match VLAN ID can be permission to go through
Tag Only:
the port.
„
Acceptable all Packet
ALL:
select a range of VLAN ID. There are 16 VLAN ID range. The
VLAN ID Range:
ports are assigned to the same VLAN ID will be in the same VLAN group.
Apply
5. Click
.
Default
6. To reset back to default value, click
button.
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802.1q VLAN – Port VLAN ID interface
Spanning Tree
The Spanning-Tree Protocol (STP) is a standardized method (IEEE 802.1d) for
avoiding loops in switched networks. When STP enabled, to ensure that only one path
at a time is active between any two nodes on the network. We are recommended that
you enable STP on all switches ensures a single active path on the network.
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Spanning Tree – System Configuration interface
System Configuration
1. You can view spanning tree information about the Root Bridge.
2. You can view spanning tree status about the switch.
Apply
3. You can modify STP state. After modification, click
button.
„
„
„
assign path priority number.
Priority:
the maximum path age
Max Age:
Formatted: Bullets and Numbering
the time that controls switch sends out the BPDU packet to
Hello Time:
check STP current status.
forward delay time.
„
Forward Delay Time:
Per Port Configuration
You can configure path cost and priority of every port.
1. Select the port in Port column.
2. Assign the Path Cost. The value range is from 1 to 65535.
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3. Assign the port priority value. The value range is from 0 to 255. The lowest value
has higher priority.
Apply
4. Click
button.
SPT – Per Port Configuration interface
Port Mirroring
The Port mirroring is a method for monitor traffic in switched networks. Traffic through
ports can be monitored by one specific port. That is, traffic goes in or out monitored
ports will be duplicated into mirror port.
1.
set mirror mode: Disable, RX, TX, and Both.
Port Mirroring State:
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2.
3.
It’s mean mirror port can be used to see all monitor port traffic.
Analysis Port:
You can connect mirror port to LAN analyzer or Netxray.
the ports you want to monitor. All monitor port traffic will be copied
Monitor Port:
to mirror port. You can select max 25 monitor ports in the switch. User can choose
which port want to monitor in only one mirror mode.
If you want to disable the function, you must select monitor port to none.
Note:
Prot Mirroring interface
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SNMP Management
The SNMP is a Protocol that governs the transfer of information between management
and agent. The switch supports SNMP V1.
You can define management stations as trap managers and to enter SNMP community
strings. You also can define a name, location, and contact person for the switch. Fill in
the system options data, and then click Apply to update the changes.
„
1.
2.
3.
System Options
enter a name for the switch.
Name:
enter the switch physical location.
Location:
Contact:
enter the name of contact person or organization.
SNMP Management interface
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„
Community strings
Serve as a password between trap manager and switch.
1.
2.
fill the name of string.
String:
Read only. Enables requests accompanied by this string to display
RO:
MIB-object information.
3.
Read write. Enables requests accompanied by this string to display
RW:
MIB-object information and to set MIB objects.
Add
4. Click
.
„
Trap Manager
A trap manager is a management station that receives traps, the system alerts
generated by the switch. If no trap manager is defined, no traps will issue. Create a
trap manager by entering the IP address of the station and a community string.
1.
2.
fill in the trap device IP.
IP Address:
the trap device community strings.
Community Strings:
Add
3. Click
.
Security Manager
You can change web management login user name and password.
1.
2.
type the new user name. The default is “root”
type the new password. The default is “root”
User name:
Password:
retype the new password.
Confirm password:
Apply
3. Click
.
Security Manager interface
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802.1X
When enabling the IEEE 802.1X function, you can configure the parameters of this
function.
System Configuration
1.
2.
set the Radius Server IP address.
Radius Server IP:
set the UDP destination port for authentication requests to the
Server Port:
specified Radius Server.
3.
4.
set the UDP destination port for accounting requests to the
Accounting Port:
specified Radius Server.
set an encryption key for use during authentication sessions with the
Shared Key:
specified radius server. This key must match the encryption key used on the
Radius Server.
5.
set the identifier for the radius client.
NAS, Identifier:
Apply
6. Click
.
802.1x Configuration – System Configuration interface
Per port Configuration
1. Select the port in Port column.
2. Select the state of port. There are four states:
„
the specified port is required to be held in the Unauthorized state.
Reject:
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„
„
the specified port is required to be held in the Authorized state.
Accept:
the specified port is set to the Authorized or Unauthorized state
Authorized:
in accordance with the outcome of an authentication exchange between the
Supplicant and the authentication server.
„
The specified port is required to be held in the Authorized state.
Disable:
Apply
3. Click
.
4. You can see the every port Authorization information list in table.
802.1x Configuration – Per Port Configuration
Misc Configuration
1.
2.
Set the period during which the port doesn’t try to acquire a
Quiet period:
supplicant.
Set the period the port waits to retransmit next EAPOL PDU during an
TX period:
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authentication session.
3.
4.
5.
6.
Set the period of time the switch waits for a supplicant
Supplicant timeout:
response to an EAP request.
Set the period of time the switch waits for a server response to
Server timeout:
an authentication request.
Set the number of authentication that must time-out before
Max requests:
authentication fails and the authentication session ends.
Set the period of time after which clients connected must be
Reauth period:
re-authenticated.
Apply
7.
Click
.
802.1x Configuration – Misc Configuration interface
TFTP Update Firmware
It provides the functions to allow a user to update the switch firmware. Before updating,
make sure you have your TFTP server ready and the firmware image is on the TFTP
server.
1.
2.
fill in your TFTP server IP.
TFTP Server IP Address:
the name of firmware image.
Firmware File Name:
Apply
3. Click
.
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TFTP Update Firmware interface
Configuration Backup
In Configuration Backup, you can restore the backup configuration into the switch. Also,
you can backup the configuration to TFTP server.
TFTP Restore Configuration
You can restore EEPROM value from TFTP server, but you must put back image in
TFTP server, switch will download back flash image.
1.
2.
fill in the TFTP server IP.
TFTP Server IP Address:
fill in the correct restore file name.
Restore File Name:
Apply
3. Click
.
TFTP Restore Configuration interface
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TFTP Backup Configuration
You can save current EEPROM value from the switch to TFTP server, then go to the
TFTP restore configuration page to restore the EEPROM value.
1.
2.
fill in the TFTP server IP
TFTP Server IP Address:
fill the file name
Backup File Name:
Apply
3. Click
.
TFTP Backup Configuration interface
Factory Default
Reset Switch to default configuration, default value to as following configuration:
„
„
„
„
192.168.16.1
Default IP address:
192.168.16.254
Default Gateway:
255.255.255.0
Subnet mask:
The other setting value is back to disable or none.
Default
Click
button to reset switch to default setting.
Factory Default interface
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System Reboot
Apply
Reboot the Switch in software reset. Click
button to reboot the switch.
System Reboot interface
Panel List
Display the switch panel GUI. When the switch is in stacking status, it display the
slaves panel GUI. When the switch is stand-alone status, it display itself panel GUI.
You can click the port on the panel GUI to check port current information.
Panel list interface
IP Stacking
This function allows switch to stack up to 8 stackable switches as a unit group. When
configuring the stacking function, beware the following points.
„
„
Any port on the switch can be used to stack.
Before configuring the stacking function, make sure all stack switches are in the
same network.
„
„
When configure stacking function, must configure the master switch first.
After stacking group has set up, all slave switches are configured through master
switch. You still can direct access to slave switch, but all functions are read and
view only.
„
To remove the switch from stacking group, you must remove the salve switch first.
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When all slave switches are removed, and then you can remove the master switch
from stacking group. If you remove the master switch before slave switch, go to
slave switches one by one and use console configuration to re-configure the
switch configuration or you re-configure one of the slave switched as the master
by console interface.
1. Click “
” in the menu bar.
Assign a group ID for stacking group. The switches in the
IP Stacking
2.
3.
Group ID (0...65535):
same stacking group have same group ID.
select the stacking mode from drag down list.
Stacking Mode:
„
„
„
it means the switch doesn’t belong to any stacking group or stacking
Disable:
function is disable.
it means the switch is the leader (master) in the stacking group. The
Master:
master switch can control all the slave switches in stacking group.
it means the switch is a slave switch of the stacking group. To
Slave:
configure the slave switch that you must access by the master switch.
IP Stacking interface
Apply
4. Click
button to apply the configuration. When the master switch has
configured, you will see the following screen.
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IP Stacking master switch configure finished interface
5. After you have configured the stacking function, use Cat. 5 cable to connect each
switch in the stacking group. And wait for few minutes for the master switch to
communicate and collect the data from the slave switches.
6. Connect to the master switch through the Web. You will see the following screen
display.
7. Click any function in the menu bar of the master switch to configure the switch in
the stacking group. You will see the IP of stacking group list that display the IP and
the switch name.
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IP Stacking Finished configuring interface
8. If you want to configure one of switch in stacking group, click the hyper link on the
top of screen and login to the switch that you want to configure. You will see the
screen of the switch that you have selected.
Stacking group configuration interface
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6. Troubleshooting
This section is intended to help you solve the most common problems on the LevelOne
GSW-2491TXM.
Incorrect connections
The switch port can auto detect straight or crossover cable when you link switch with
other Ethernet device. For the RJ-45 connector should use correct UTP or STP cable,
10/100Mbps port use 2 pairs twisted cable and Gigabit 1000T port use 4 pairs twisted
cable. If the RJ-45 connector is not correct pin on right position then the link will fail.
For fiber connection, please notice that fiber cable mode and fiber module should be
match.
„
Faulty or loose cables
Look for loose or obviously faulty connections. If they appear to be OK, make sure the
connections are snug. IF that does not correct the problem, try a different cable.
„ Non-standard cables
Non-standard and miss-wired cables may cause numerous network collisions and
other network problem, and can seriously impair network performance. A category 5
cable tester is a recommended tool for every 100Base-T network installation.
„
Improper Network Topologies
It is important to make sure that you have a valid network topology. Common topology
faults include excessive cable length and too many repeaters (hubs) between end
nodes. In addition, you should make sure that your network topology contains no data
path loops. Between any two ends nodes, there should be only one active cabling path
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at any time. Data path loops will cause broadcast storms that will severely impact your
network performance.
Diagnosing LED Indicators
The Switch can be easily monitored through panel indicators to assist in identifying
problems, which describes common problems you may encounter and where you can
find possible solutions.
IF the power indicator does turn on when the power cord is plugged in, you may have a
problem with power outlet, or power cord. However, if the Switch powers off after
running for a while check for loose power connections, power losses or surges at
power outlet. IF you still cannot resolve the problem, contact your local dealer for
assistance.
„
Cabling
use unshielded twisted-pair (UTP) or shield twisted-pair ( STP ) cable for
RJ-45 ports:
Ω
Ω
Category 3, 4 or 5 cable for 10Mbps connections or 100
RJ-45 connections: 100
Category 5 cable for 100Mbps connections. Also be sure that the length of any
twisted-pair connection does not exceed 100 meters (328 feet). Gigabit port should
use Cat-5 or cat-5e cable for 1000Mbps connections. The length does not exceed 100
meters.
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7. Technical Specification
This section provides the specifications of The LevelOne GSW-2491TXM, and the
following table lists these specifications.
IEEE802.3 10BASE-T
IEEE802.3u 100BASE-TX/100BASE-FX
IEEE802.3z Gigabit SX/LX
IEE802.3ab Gigabit 1000T
Standard
IEEE802.3x Flow Control and Back pressure
IEEE802.3ad Port trunk with LACP
IEEE802.1d Spanning tree protocol
IEEE802.1p Class of service
IEEE802.1Q VLAN Tagging
Switch architecture
Back plane
Store and forward switch architecture.
8.8Gbps
System Power
10/100TX RJ-45 Port: 100Mbps,Link/Active,
Full-duplex/Collision
LED Indicators
Gigabit Fiber: Link/ Activity
Gigabit Copper: Link/Activity, Full duplex/Collision,
1000Mbps, 100Mbps
10/100TX: RJ-45
Gigabit 1000T module: RJ-45
MiniGBIC module: miniGBIC
Connector
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MAC address
Memory
8K MAC address table with Auto learning function
3Mbits for packet buffer
CPU
ARM-7
Flash ROM
System memory
Dimensions
Power Supply
EMI
512Kbytes
4Mbytes
440mm(W)*161mm(D)*44.5mm(H)
100-240V AC, 50-60Hz
FCC Class A, CE Mark
UL, cUL
Safety
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