Installation guide

Release Notes for Catalyst5000 Family Software Release4.x

OL-2306-01

New Features for Supervisor Engine Software Release4.2

This section describes the new features available in software release4.2.

• Dynamic Trunking Protocol (DTP)—DTP supports negotiation of both Inter-Switch Link (ISL) and

IEEE 802.1Q VLAN trunks.

• Disable receive traffic on Switched Port Analyzer (SPAN) destination port—You can prevent

normal receive traffic from entering a port configured as a SPAN destination.

• ATM and Token Ring fast switchover support—Token Ring modules and ATM modules running

the proper software releases no longer reset when there is a supervisor engine switchover from

active to standby. Fast switchover support for these modules requires supervisor engine software

release 4.2(1) and one of the following module software releases:

• New hardware supported:

–

Catalyst 5509 chassis—Provides a nine-slot chassis with a 3.6-Gbps backplane, support for

redundant supervisor engines and power supplies, and support for all of the Catalyst 5000

family switching modules. (WS-C5509)

–

Gigabit EtherChannel module (WS-X5410)—Provides nine Gigabit Ethernet interfaces with

support for Gigabit EtherChannel in a two-slot configuration. This module is designed for

backbone interconnection of other high-performance Catalyst 5000 family switches and Cisco

routers through Gigabit EtherChannel. The module accepts any combination of Cisco

hot-swappable Gigabit Interface Converters (GBICs), such as the 1000BASE-SX GBIC

(WS-G5484) and the 1000BASE-LX/LH GBIC (WS-G5486).

–

Two-slot 48-port 10BASE-T RJ-45 Ethernet module (WS-X5014)—Provides 48 switched

10BASE-T RJ-45 Ethernet ports in a two-slot configuration.

–

48-port 10BASE-T Telco Ethernet module (WS-X5012A)—Provides 48 switched 10BASE-T

Telco Ethernet ports.

New Features for Supervisor Engine Software Release4.1

This section describes the new features available in software release4.1.

• Multilayer Switching (MLS)—Scales Layer 3 performance to high-performance link speeds by

extending the MLS concept introduced in Cisco IOS software to LAN switching hardware.

• Internet Group Management Protocol (IGMP) Snooping—Allows the switch to examine IGMP

packets and make forwarding decisions based on their content.

• Protocol Filtering—Supports protocol filtering within a port VLAN. With protocol filtering

enabled, ports are grouped on a protocol basis.

• Spanning Tree Protocol Backbone Fast Convergence—Provides fast convergence after a spanning

tree topology change caused by indirect link failures.

Token Ring modules Token Ring software release 4.2(1) and later

ATM modules • ATM module software release 3.2(8)

• ATM module software release 51.1(3)

• ATM module software release

11.3(3a)WA4(5)