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Key Features/Benefits

Exceptional Performance

• Eight GBIC-based Gigabit Ethernet ports deliver up

to 5-Gbps aggregated forwarding bandwidth to a

switch cluster

• 10-Gbps switching fabric and 7.0 million

packets-per-second forwarding rate

• 4 MB shared-memory architecture ensures the highest

possible throughput, with a design that eliminates

head-of-line blocking, minimizes packet loss, and

delivers better overall performance in environments

with extensive multicast and broadcast trafﬁc

• Full-duplex operation on all ports delivers up to

2-Gbps on 1000Base-X ports

• Dual-priority forwarding queues on each Gigabit

Ethernet port through IEEE 802.1p protocol enable

prioritization of mission critical and time sensitive

trafﬁc from data, voice, and telephony applications

• Trusted extension settings allows the switch to set

trusted port settings for thePCport on Cisco IP phones,

ensuring voice trafﬁc receives highest priority

• Bandwidth aggregation up to 4 Gbps through Gigabit

EtherChannel technology enhances fault tolerance and

offers higher-speed aggregated bandwidth between

switches, and to routers and individual servers

• A conﬁgurable network port supports unlimited MAC

addresses for backbone connectivity

• GigaStack GBIC delivers a low-cost hardware-based,

independent stack bus with up to 1-Gbps forwarding

bandwidth in a cascade conﬁguration (up to nine

Catalyst 3500 XL or gigabit-enabled Catalyst 2900

Series XL switches) or 2-Gbps forwarding rate in a

point-to-point conﬁguration

• GBIC-based Gigabit Ethernet ports give customers a

choiceof 1000Base-T, 1000Base-SX,1000Base-LX/LH,

1000Base-ZX, or Cisco GigaStack GBICs to ﬁt their

connection needs

• Per-portbroadcast, multicast,and unicaststorm control

prevents faulty end stations from degrading overall

systems performance

Flexible and Scalable Switch Clustering

Architecture

• Cisco Switch Clustering technology allows the user to

manage up to sixteen interconnected Catalyst 3500 XL,

2900 XL, and Catalyst 1900 switches through a single

IP address, regardless of location

• Common Switch Redundancy allows customers to

designate a backup command switch, which takes over

clustermanagement functions inthe event ofa failure of

the primary command switch

Ease of Use and Ease of Deployment

• The cluster software administration feature allows a

network manager to quickly and easily upgrade the

system software on a group of Catalyst 3500 XL, and

2900 XL, and Catalyst 1900 switches

• IEEE 802.3z-compliant 1000Base-T, 1000Base-SX,

1000Base-LX/LH,and1000Base-ZX physical-interface

support through a ﬁeld-replaceable GBIC module

provides customers unprecedented ﬂexibility in switch

deployment

• Autoconﬁguration eases deployment of switches in the

network byautomatically conﬁguring multiple switches

across a network via a boot server

• Default conﬁguration stored in Flash memory ensures

that the switch can be quickly connected to the network

and can pass trafﬁc with minimal user intervention,

preserving the conﬁguration in case of a power outage

• Voice VLAN creates a new subnet for use by IP phones

in cases where there are not enough free IP addresses in

the existing subnets

Integrated Cisco IOS Switching Solution

• Cisco Group Management Protocol (CGMP) enables

a switch to selectively and dynamically forward routed

IP multicast trafﬁc to targeted multimedia end stations,

reducing overall network trafﬁc

• CGMP Fast Leave allows end stations to quickly exit

from a multicast session, reducing superﬂuous trafﬁc

on the network

• Virtual LAN trunks can be created from any port

using either standards-based 802.1Q tagging or the

Cisco ISL VLAN architecture

• IEEE 802.1p Layer 2 prioritization protocol allows

users to assign data packets to prioritized

forwarding queues

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