Cisco Systems Network Card WS C2950 12 User Manual

THIS ISTHE POWER OFTHE NETWORK. now.

CISCO PRODUCT GUIDE

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WIRELESS SOLUTIONS ENABLE PEOPLETO WORK

SECURITY IS AN ISSUE FOR EVERY COMPANY. CISCO

SECURITY SOLUTIONS HELP PROTECTYOUR NETWORK FROM

INSIDE AND OUT, ENCOMPASSING:

PRODUCTIVELY, ONSITE, WHILE AWAY FROMTHEIR DESKS.

CISCO AIRONET WIRELESS SOLUTIONS:

• Provide secure, affordable, upgradable, and easy-to-use WLAN

solutions.

• VPNs, firewalls, access control lists (ACLs), and intrusion

detection systems (IDSs) that can be deployed on Cisco routers,

switches, and specialised Cisco PIX^®security appliances.

• Deliver industry-leading security with the

IEEE 802.1X-based Cisco Wireless Security Suite.

•Tools such as Cisco Easy VPN and Auto Update for easy

deployment and management.

• Support data rates of up to 54 Mbps (IEEE 802.11g) with

backward compatibility to 802.11b equipment.

• Make management easy and straightforward.

ROUTERS PROVIDE HIGHLY SECURE, INTELLIGENT

ROUTING SOLUTIONS FOR BROADBAND AND LEGACY

NETWORKS. CISCO ROUTERS:

• Support local power and inline Power over Ethernet (PoE).

• Provide dual-mode support for 801.11a and 802.11g

(Cisco Aironet 1200 Series only).

• Provide secure firewall and VPN capabilities.

• Span solutions from the service provider and enterprise edge

to branch, teleworker, and small offices.

CISCO CATALYST SWITCHES PROVIDE

HIGH PERFORMANCE, INCREASED NETWORK INTELLIGENCE,

BETTER CONTROL, AND ENHANCED SECURITY.

• Offer enhanced performance, support for voice, and additional

security features (higher range models).

Robust and reliable, the switches:

• Provide superior control of traffic to maximise network

availability for every user.

IP COMMUNICATIONS ISTHE CONVERGENCE

OF DATA, VOICE, AND VIDEO SOLUTIONS ONTO A SINGLE

(IP-BASED) NETWORK.

IP Communications can play a critical part in helping a company

to identify new ways to generate revenue, reduce operational

costs, increase organisational flexibility, and generate a

sustainable competitive advantage.

• Intelligently allocate priority to critical business applications.

• Provide advanced security to protect vital business data and

confidential information.

• Are easy to install and to configure using the intuitive new

Cisco Network Assistant.

• Are available in standalone, stackable, or modular

configurations.

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CISCO CATALYSTSERIES SWITCHES—LAYER 2 ACCESS SWITCHES

10/100 COPPER

STACKABLE?

UPLINK PORT?

100BASE-FX

FAST ETHERNET

FIBRE

1000BASE-TX

GIGABIT

ETHERNET COPPER

WS-C2950-12

WS-C2950-24

WS-C2950C-24

WS-C2940-8TF-S

WS-C2950T-24

WS-C2950T-48-SI

WS-C2940-8TT-S

• 10/100 ports: 8

• 10/100 ports: 24 or 48

• 1 rack-unit switch

• 2 fixed 10/100/1000BASE-T

uplink ports (built-in)

• 10/100 ports: 12 or 24

• 1 rack-unit switch

• Standard SI

• 10/100 ports: 24

• 1 rack-unit switch

• 2 100BASE-FX

uplink ports (built-in)

• Enhanced SI

• 10/100 ports: 8

• Small form factor

• 1 100BASE-FX uplink

ports (built-in) or 1 SFP port

• Standard SI

• Small form factor

• 1 10/100/1000BASE-T uplink port

• Standard SI

• Enhanced SI on 24-port

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Standard Software Image

Enhanced Software Image—for enhanced security/QoS/routing

LAYER 2 SWITCHING

CONNECTIVITY?

GIGABIT COPPER

NOT STACKABLE

UPLINK PORT?

YES

SFP

1000BASE-SX

GBIC UPLINK

GIGABIT

ETHERNET FIBRE

upgradable

WS-C2950G-12-EI

WS-C2950G-24-EI

WS-C2950G-48-EI

WS-C2970G-24T-E

WS-C2970G-24TS-E

WS-C2950SX-24

WS-C2950SX-48-SI

• 10/100 ports: 24 or 48

• 1 rack-unit switch

• 2 fixed 1000BASE-SX

uplink ports (built-in)

• Standard SI

• 10/100 ports: 12, 24 or 48

• 1 rack-unit switch

• 2 GBIC ports

• 10/100/1000 ports: 24

• 1 rack-unit switch

• Enhanced SI

• 10/100/1000 ports: 24

• 1.5 rack-unit switch

• 4 SFP ports

• Enhanced SI

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CISCO CATALYST SERIES SWITCHES—LAYER 2 AND 3 CORE SWITCHES

POWER OVER

ETHERNET 10/100

CONNECTIVITY?

COPPER

100 FIBRE

10/100 COPPER

UPLINK PORT?

SFP UPLINK

GBIC

SFP

GBIC UPLINK

WS-C3550-24-FX-SMI

WS-C3750-24TS-S

WS-C3750-24TS-E

WS-C3750-48TS-S

WS-C3750-48TS-E

WS-C3750-24T-S

WS-C3750-24T-E

WS-C3560-24PS-S

WS-C3560-24PS-E

WS-C3560-48PS-S

WS-C3560-48PS-E

WS-C3550-24-SMI

WS-C3550-24-EMI

WS-C3550-48-SMI

WS-C3550-48-EMI

• 10/100 ports with

PoE: 24 or 48

• 1 rack-unit switch

• 2 SFP ports

(24-port model)

• 4 SFP ports

• 10/100 ports: 24 or 48

• 1 rack-unit switch

• 2 SFP ports

(24-port model)

• 4 SFP ports

• 10/100/1000 ports: 24

• 1 rack-unit switch

• Cisco StackWise enhanced

stacking capability

• SMI or EMI

• 10/100 ports: 24 or 48

• 1 rack-unit switch

• 2 GBIC ports

• 100BASE-FX

multimode fibre ports: 24

• 1 rack-unit switch

• 2 GBIC ports

• SMI or EMI

(48-port model)

• Supports IEEE 802.3af

PoE standard

• Cisco StackWise™ enhanced

stacking capability

• SMI or EMI

• Backward-compatible

with Cisco Inline Power

standard

• SMI or EMI

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Standard Software Image

Enhanced Software Image—for enhanced security/QoS/routing

LAYER 2/LAYER 3 SWITCHING

STACKABLE?

YES

POWER OVER

ETHERNET?

YES

GIGABIT COPPER

GIGABIT FIBRE

10/100 COPPER

UPLINK PORT?

10GE

SFP

WS-C3570G-24TS-S

WS-C3570G-24TS-E

WS-C3750G-16TD-S

WS-C3750G-16TD-E

WS-C3750-12S-S

WS-C3750-12S-E

WS-C3750-24PS-S

WS-C3750-24PS-E

WS-C3750-48PS-S

WS-C3750-48PS-E

• 10/100/1000 ports: 16

• 1 10GB uplink

• SMI or EMI

• 10/100/1000 ports: 24

• 1.5 rack-unit switch

• 4 SFP ports

• Cisco StackWise enhanced

stacking capability

• SMI or EMI

• 12 SFP-based

Gigabit ports

• 1 rack-unit switch

• Cisco StackWise enhanced

stacking capability

• SMI or EMI

• 10/100 ports: 24 or 48

• 1 rack-unit switch

• 2 SFP ports (24-port model)

• 4 SFP ports (48-port model)

• Supports IEEE 802.3af POE

standard Cisco StackWise

enhanced stacking capability

• SMI or EMI

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CISCO ROUTERS —BROADBAND ROUTING

SMALL OFFICE OR

BUSINESS/BRANCH?

SMALL OFFICE

BASIC OR ADVANCED

BASIC

ADVANCED

SECURITY AND

VPN/PERFORMANCE?

DO YOU HAVE A

BROADBAND MODEM?

DO YOU HAVE A

BROADBAND MODEM?

YES

CISCO SOHO 91-K9

CISCO SOHO 96, 97-K9

CISCO 831-K9

CISCO 836, 837-K9

• 4-port 10/100 Mbps switch

• Ethernet WAN port

• Cisco IOS Firewall

• IPSec VPN (1.2 Mbps

maximum), 8 tunnels

• 4-port 10/100 Mbps switch

• ADSLi WAN port (SOHO 96)

• ADSL WAN port (SOHO 97)

• Cisco IOS Firewall

• IPSec VPN (1.2 Mbps maximum),

8 tunnels

• 4-port 10/100 Mbps switch

• Ethernet WAN port

• Cisco IOS Firewall, DMZ, 802.1X • ADSL WAN port (837)

• IDS

• IPSec VPN (7 Mbps maximum),

3DES, AES, 10 tunnels

• QoS, AZR

• 4-port 10/100 Mbps switch

• ADSLi WAN port (836)

• Cisco IOS Firewall, DMZ, 802.1X

• IDS

• IPSec VPN (7 Mbps maximum),

3DES, AES, 10 tunnels

• QoS, AZR

Note:

ADSLi = ADSL over ISDN

ADSL = ADSL over POTS

• Optional ISDN backup on

836 only

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SMALL BUSINESS/BRANCH

YES

FIXED CONFIGURATION/

MODULAR HIGH

LOW COST/NO VOICE?

PERFORMANCE

DO YOU HAVE A

BROADBAND MODEM?

DO YOU NEED

VOICE SERVICES?

YES

MORE THAN

24 USERS?

YES

CISCO 1701 ADSL

SECURITY

CISCO 1711/1712

SECURITY

CISCO 1841

INTEGRATED

CISCO 2801

INTEGRATED

CISCO 2811

INTEGRATED

ACCESS ROUTER

SERVICES ROUTER

• 2-port Fast Ethernet

• 2 HWIC/VWIC/WICs

• Advanced integration

module

• Cisco IOS Firewall

• Cisco IOS IPS

• 2-port Fast Ethernet

• 2 HWIC/VWIC/WICs

1 VWIC/WIC/VIC

1 VWIC/VIC (voice only)

• 2 advanced integration

modules

• 2-port Fast Ethernet

• 4 HWICs

• 2 advanced integration

modules

• Cisco IOS Firewall

• Cisco IOS IPS

• 1-port 10/100 Mbps

• ADSL WAN port

• Cisco IOS Firewall

• Cisco IOS IPS

• 4-port 10/100 Mbps

• Ethernet WAN port

• Cisco IOS Firewall

• Cisco IOS IPS

• IPSec VPN

• Advanced QoS

• Standard ISDN backup

• 802.1Q, 802.1X

• Advanced QoS

• Standard ISDN backup

• 802.1Q, 802.1X

• Cisco IOS Firewall

• Cisco IOS IPS

• IPSec VPN

• Advanced QoS

• IPSec VPN

• Advanced QoS

• IPSec VPN

• Standard ISDN backup

• 802.1Q, 802.1X

• 2 onboard DSPs

• 1-port Network Module

Extended (NME)

• Standard ISDN backup

• 802.1Q, 802.1X

• Advanced QoS

• Standard ISDN backup

• 802.1Q, 802.1X

• 2 onboard DSPs

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CISCO ROUTERS—LEGACY NETWORKING

SMALL OFFICE OR BUSINESS/BRANCH?

SMALL OFFICE,

SINGLE WAN

BUSINESS/BRANCH,

DUAL WAN

ISDN OR SERIAL?

ISDN

ISDN AND/OR SERIAL?

SERIAL ONLY

ISDN AND SERIAL

WITH INTEGRATED HUB

AND VOICE PORTS?

YES

CISCO 1841 INTEGRATED

CISCO 801 ISDN ROUTER

CISCO 803 ISDN ROUTER

CISCO 805 SERIAL ROUTER

SERVICES ROUTER

• 1-port 10-Mbps Ethernet LA

• Cisco IOS Filrewall

• IPSec VPN

• 4-port 10-Mbps Ethernet LA

• 2 RJ-11 analog ports

• Cisco IOS Filrewall

• IPSec VPN

• 1-port 10-Mbps Ethernet LA

• Asynchronous and synchronous lines

• Cisco IOS Firewall

• IPSec VPN

• 2-port Fast Ethernet

• 2 HWIC/VWIC/WICs

• Advanced integration module

• QoS

• Cisco IOS Firewall

• QoS

• Cisco IOS IPS

• IPSec VPN

• Advanced QoS

• Standard ISDN backup

• 802.1Q, 802.1X

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CISCO PIX SECURITY APPLIANCES

HOW MANY EMPLOYEES?

100

250+

CISCO PIX 501

CISCO PIX 506E

CISCO PIX 515E

Cisco PIX^®501 Firewall

(10 users with 3DES )

PIX-501-BUN-K9

• Stateful inspection firewall

(10 Mbps clear-text throughput)

• 56-bit DES IPSec VPN

(6 Mbps throughput)

• 168-bit 3DES IPSec VPN

(3 Mbps throughput)

• 128-bit AES IPSec VPN

(4.5 Mbps throughput)

• 10 simultaneous remote-access/

site-to-site VPN peers

• Intrusion detection

Cisco PIX^®501 Firewall

(50 users with 3DES)

PIX-501-50-BUN-K9

• Stateful inspection firewall

(10 Mbps clear-text throughput)

• 56-bit DES IPSec VPN

(6 Mbps throughput)

• 168-bit 3DES IPSec VPN

(3 Mbps throughput)

• 128-bit AES IPSec VPN

(4.5 Mbps throughput)

• 10 simultaneous remote-access/

site-to-site VPN peers

• Intrusion detection

• 4-port 10/100 switch

• Plug and play, Auto Update

and Easy VPN

Cisco PIX^®515E Firewall

(250+ users with 3DES)

PIX-515E-R-DMZ-BUN

• Stateful inspection firewall

(188 Mbps clear-text throughput)

• 56-bit DES IPSec VPN

Cisco PIX^®506E Firewall

(250+ users with 3DES)

PIX-506E-BUN-K9

• Stateful inspection firewall)

(100 Mbps clear-text throughput

• 56-bit DES IPSec VPN

(20 Mbps throughput)

• 168-bit 3DES IPSec VPN

(17 Mbps throughput)

• 128-bit AES IPSec VPN

(30 Mbps throughput)

• 25 simultaneous remote-access/

site-to-site VPN peers

• Intrusion detection

(20 Mbps throughput)

• 168-bit 3DES IPSec VPN

(22-63 Mbps throughput)

• 250 simultaneous remote-access/

site-to-site peers

• Intrusion detection

• 3 10/100 ports

• DMZ feature allows users on the

Internet to access a Web server while

keeping the company network secure.

• Plug and play, Auto Update

and Easy VPN

• 4-port 10/100 switch

• Plug and play, Auto Update

and Easy VPN

• 2 10/100 ports

• Plug and play, Auto Update

and Easy VPN

• Free VPN client

Cisco PIX Device Manager

Cisco PIX^®515E Firewall

PIX-515E-UR-BUN

• As above

• VPN accelerator card provides

• 168-bit 3DES IPSec VPN

(140 Mbps throughput)

• 128-bit AES IPSec VPN

(135 Mbps throughput)

• 1000 simultaneous remote-access/

site-to-site peers

• Intuitive, Web-based interface

for securely managing a

single remote Cisco PIX

• Full-featured wizards for initial

firewall and VPN configuration

• More than 100 predefined services

for simplified security

Security Appliance

• Web-based real-time monitoring

monitoring of CPU/memory

utilization, interface throughput,

connections, and VPN tunnels.

policy creation

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CISCO IP COMMUNICATIONS SOLUTIONS

HOW MANY HANDSETS ARE REQUIRED?

CISCO

2801-CCME/K9

CISCO

2821-CCME/K9

CISCO

2851-CCME/K9

• Cisco 2821 CallManager Express Bundle

• 1-port RJ-48 multiflex trunk E1

• Cisco Catalyst Switch 3560 24/48-port

10/100 switch

• Cisco 2851 CallManager Express Bundle

• 1-port RJ-48 multiflex trunk E1

• Cisco Catalyst Switch 3560 24/48-port

10/100 switch

• Cisco 2801 CallManager Express bundle

• 1-port RJ-48 multiflex trunk E1

• Cisco Catalyst 3560 24/48-port

10/100 switch

• Cisco IP Phone 7912G

• Cisco IP Phone 7905G

• NM-CUE (includes 12 mailboxes)

• SCUE-LIC-50CME (additional 50

mailboxes)

• NM-CUE (includes 12 mailboxes)

• SCUE-LIC-100CME (additional 100

mailboxes)

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New Cisco CallManager Express 3.2 Features Available with Cisco IOS Release 12.3(11)T

• Support for 240 IP phones

• Transcoding

• Soft-key customization

• Loopback DN Free

• CUE H.323 to SIP hairpin

• SCCP to RCFC 2833 DTMF support

• Direct FXO line select

• DND divert call to voicemail

• Call waiting beep suppression

• Overlay DN called name display

• Longest idle hunt group with call statistics

• Conference initiator drop-off

Features from Cisco CallManager Express 3.1.1 Maintenance Release

• Japanese Katakana (1-byte) localization

• Cisco IP Phone 7936 support

• H.323 integration with Cisco CallManager 4.0

CISCO

2851-CCME/K9

Features from Cisco CallManager Express 3.2.1 with Cisco IOS Software

Release 12.3(11)XL (released November 14)

• Basic ACD (3 queues) with call statistics

• Cisco IP Color Phone 7970 (Cisco CallManager Express & SRST)

• Call waiting with overlay DN

• Call waiting ring

• Feature ring with DND set

Selecting WAN & Voice Modules

• Cisco 2851 CallManager Express Bundle

• 1-port RJ-48 multiflex trunk E1

• Cisco Catalyst Switch 3560 24/48-port 10/100 switch

• Cisco IP Phone 7912G

• NM-CUE (includes 12 mailboxes)

• SCUE-LIC-100CME (additional 100 mailboxes)

• VIC-2E/M—2-port E&M VIC

• VIC-2FXS—2-port analog FXS VIC

• VIC-2FXO—2-port analog FXO VIC

• VIC-2FXO-EU—2-port analog FXO VIC (for Europe)

• VIC-2BRI-NT/TE—2-port BRI VIC (NT and TE)

• VIC-2BRI-S/T-TE—2-port BRI VIC (terminal)

• VWIC-1MFT-E1—1-port E1/PRI VWIC

• VWIC-2MFT-E1—2-port E1/PRI VWIC

• VIC2-2FXS—2-port VIC (FXS)

• VIC2-2FXO—2-port VIC (FXO: universal)

• VIC2-4FXO—4-port VIC (FXO: universal)

• VIC2-2E/M—2-port E&M VIC

• VIC2-2BRI-NT/TE—2-port BRI VIC (NT and TE)

• 1-slot IP Communications voice/fax network module (up to 4 channels of analog/BRI voice)

• 2-slot IP Communications voice/fax network module (up to 8 channels of analog/BRI voice)

• 2-slot IP Communications enhanced voice/fax network module (up to 24 channels of

analog/BRI voice)

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CISCO IP PHONES

BASIC FEATURES

ADVANCED FEATURES

CISCO IP PHONE

7960

7902G

7905G

7912G

7940G

• Entry-level phone

• Single line

• Pixel-based display

• Single line

• Pixel-based display

• Single line

• Ideal for desktop

office use

• Ideal for desktop

office use

• No display

• No configurable

fixed keys

• Four dynamic

soft keys

• Listening mode

support

• Four dynamic

soft keys

• Listening mode

support

• Dual-port integrated

Ethernet switch

• Supports text-only XML

• B/W graphic display

with two fixed lines

of characters

• Four dynamic

soft keys

• B/W graphic display

with two fixed lines

of characters

• Four dynamic soft

keys

• Supports text-only XML

• Four configurable

keys

• Six cconfigurable

keys

• Integrated external

headset socket

• Full-duplex

• Integrated external

headset socket

• Full-duplex

speakerphone

• Integrated dual

Ethernet switch port

speakerphone

• Integrated dual

Ethernet switch port

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ANALOGUE/FAX

CISCO IP PHONE

7920

CISCO IP CONFERENCE

STATION 7935/7936

CISCO IP EXPANSION

MODULE 7914

CISCO ATA

186/188

7970G

• 8 programmable keys

• 320x234 pixel touch

screen display

• 5 soft keys

• Advanced XML

support

• IEEE 802.3af inline

power support

• Can connect external

microphone and speakers

• Wireless IP phone

802.11b standard

• B/W pixel-based

display

• Equipped with three

microphones for

better space

coverage

• Full-duplex

speakerphone

• Three dynamic

soft keys

• Supports three

external directional

microphones

• Attendant console

station to be used

in conjunction with

the Cisco IP Phone 7960

Phone

• Device with two

analog ports to

connect faxes or

analog phones

• 1 RJ-45 10BASE-T

Ethernet port (Cisco

186 ATA)

• 2 Ethernet RJ-45

10/100BASE-T ports

(Cisco ATA 188)

• Two soft keys

• XML script support

• A range of 15–300m

according to

environmental conditions

• Supported on Cisco 340,

350, 1100, and 1200

series access points

• Up to 34 extensions

can be monitored

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CISCO AIRONET FAMILY

CISCO AIRONET WIRELESS LAN SOLUTIONS

CISCO AIRONET WIRELESS BRIDGING SOLUTIONS

• Inline PoE or local power

• Cisco IOS feature set for QoS, security, and VLAN

• Lockable mounting brackets

• Configurable for access point, bridge, or workgroup bridge roles

• Support for both point-to-point or point-to-multipoint configurations

• Industry-leading range and throughput, supporting data rates of

up to 54 Mbps

• Secure with cable/padlock

• 802.11g backward-compatible with 802.11b

• Part of the Cisco SWAN framework

• Enhanced security mechanisms based on 802.1X standards

• Ruggedized enclosure optimized for harsh outdoor environments

with extended operating temperature range

• Integrated or optional external antennas for flexibility in deployment

SMB

ENTERPRISE

BRANCH OFFICES

PUBLIC HOTSPOTS

CISCO AIRONET 1100 SERIES

CISCO AIRONET 1200 SERIES

CISCO AIRONET 1300 SERIES

Cisco Aironet 1100^®Series 802.11g

Access Point

AIR-AP1121G-E-K9

• 802.11g: 54 Mbps/2.4 GHz

• Integrated 2-dBi gain omni antenna

• Flexible mounting (wall, ceiling,

cubicle, desktop)

Cisco Aironet 1200^®Series Access Point

• Supports simultaneous dual-band

• Flexible mounting (wall, ceiling)

• Plenum-rated rugged design

Cisco Aironet 1300^®Series

Outdoor Access Point/Bridge

802.11g radio: 54 Mbps

AIR-BR1310G-E-K9

Integrated 13-dBi antenna

AIR-AP1231G-E-K9

• 802.11g: 54 Mbps/2.4 GHz

• 2 RP-TNC connectors for flexible

antenna selection

AIR-BR1310G-E-K9-R

RP-TNC connectors for

flexible antenna selection

AIR-AP1230A-A-K9

• 802.11a: 54 Mbps/5 GHz

• Integrated dual omni/patch

antenna (802.11a only)

Typical Example

Cisco Aironet Series 1200 802.11a radio module

AIR-RM20A-A-K9

• 802.11a: 54 Mbps/5 GHz

Simultaneous

dual-band operation

802.11a+g

Cisco Aironet Series 1200 802.11g Access Point

AIR-AP1231G-E-K

802.11g: 54 Mbps/2.4 GHz

•

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GLOSSARY

100BASE-FX – 100-Mbps fixed uplink configuration

Demilitarised zone (DMZ) – A computer host or small network

inserted as a “neutral zone” between a company’s private network

and the outside public network. A DMZ prevents direct access to

servers storing company data and provides greater security than a

firewall.

1000BASE-T –The Gigabit Ethernet standard (1 gigabit is 1000

megabits per second) using four pairs of Category 5 (CAT-5) and

above UnshieldedTwisted Pair (UTP) copper cables.

Advanced Encryption Standard (AES) – A new encryption algorithm

that is set to replace the DES algorithm. It uses a secret key of

variable length (128 to 256 bits) to provide symmetric encryption

for data in the IP Security (IPSec) suite of protocols.

Ethernet –The most widely installed LAN technology.The most

common Ethernet systems are 10BASE-T, providing transmission

speeds of up to 10 Mbps.

Firewall – A security system designed to protect a network against

Asymmetric Digital Subscriber Line (ADSL) – A technology for

transmitting digital information at high bandwidth on existing

phone lines to homes and businesses. Provides a continuously

available, “always on” connection.

external threats, such as hackers.

Gigabit – A transfer rate of 1000 Mbps.

Gigabit interface converter (GBIC) – An optical or copper transceiver

for flexible connections, up to and including gigabit speed, over

different types of media.

Bridge – Connects one LAN to another using the same protocol.

Cisco IOS Software –The standard operating system used by

all Cisco internetworking solutions. It provides a solution that

is secure, highly resilient, easy to manage, scalable, and flexible,

enabling new technologies to be deployed quickly and without

heavy reinvestment. Cisco IOS Software is the most widely used

internetworking operating system, providing further assurance

of interoperation and reliability

IEEE –The Institute of Electrical and Electronics Engineers, notable for

developing national and international standards.

IEEE 802.11 –The formal standard for the wireless networking protocol.

Integrated Services Digital Network (ISDN) – A set of standards for

digital transmission over ordinary telephone copper wire and other

media.

Data Encryption Standard (DES) – A widely used encryption

algorithm that has been used as a default for the last 20 years.

There are two principle key lengths, 56-bit for DES and 168-bit for

Triple DES (3DES). DES is accepted as being unbreakable except by

brute force (trying every key permutation), and is part of the suite

of IPSec protocols.

Intranet – A private network created within a business or organization.

Intrusion detection system (IDS) – A security countermeasure that

monitors data traffic and events, looking for signs of intruders.

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GLOSSARY

(CONTINUED)

IP Security (IPSec) – A suite of protocols that provides

Stackable switch – A switch that can stack several physical units

authentication, integrity, and encryption algorithms.

together to make a single logical entity.

LAN – A group of computers and associated devices sharing a

common communications line or wireless link and typically sharing

the resources of a single processor or server within a small geographic

area (within an office building, for example).

Switch – A device that improves network performance by segmenting

the network. When a switch port receives data packets, it forwards

those packets only to the appropriate port for the intended recipient.

This capability further reduces competition for bandwidth between

the clients, servers, or workgroups connected to each switch port.

Megabits per second (Mbps) – Data transfer speed measured in

multiples of 1 million bits per second.

Uplinks

• High-speed link to the backbone, server, or router.

Modular (chassis) switch – An upgradable switch with flexible

capabilities.

• Copper uplinks are based on CAT-5 cabling and above, and can

be used for distances of up to 100 meters.

• Fiber-optic uplinks are used for greater distances, or where

copper is not practical.

Quality of service (QoS) – For optimum efficiency, the QoS

component of Cisco IOS Software enables networks to control and

provide predictable service to numerous applications, allocating

priority, dedicating bandwidth, and controlling jitter and latency.

VPN – A secure tunnel across the Internet through which data,

video, and voice traffic can be transmitted.

Router – A device that moves data between different network

segments and can look into a packet header to determine the best

path for the packet to travel. Routers can connect network segments

that use different protocols.They also allow all users in a network

to share a single connection to the Internet or WAN.

WAN – A network that connects devices over great distances, such

as geographical regions. A WAN often connects two or more LANs.