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Product Bulletin
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Cisco IOS Software Release 12.2(50)SG for Cisco Catalyst
4500 Series Supervisor Engines, Cisco Catalyst 4900
Fixed-Configuration Switches, and Cisco Catalyst 4900M
Switch
4500 Series Supervisor Engines, Cisco Catalyst 4900
Fixed-Configuration Switches, and Cisco Catalyst 4900M
Switch
PB513357
Overview
This product bulletin describes some of the primary hardware and software features
supported by Cisco IOS
®
Software Release 12.2(50)SG for the Cisco
®
Catalyst
®
4500
Supervisor Engine 6-E, Cisco Catalyst 4900 Series Switches, Cisco Catalyst 4900M
Switch, Cisco Catalyst 4500 Series Supervisor Engine V-1’0GE, Cisco Catalyst 4500
Supervisor Engine V, Cisco 4500 Supervisor Engine IV, Cisco Catalyst 4500 Series
Supervisor II-Plus-10GE , Cisco Catalyst 4500 Series Supervisor Engine II-Plus-TS, and
Cisco 4500 Series Supervisor Engine II-Plus.
Primary Hardware and Software Service Innovations Delivered in Release
12.2(50)SG
Cisco announces Cisco IOS Software Release 12.2(50)SG for all shipping Cisco Catalyst 4500
Series (classic and Cisco Catalyst 4500 Supervisor Engine 6-E), Cisco Catalyst 4900 Series, and
Cisco Catalyst 4900M switches. Release 12.2(50)SG is the base release for a new extended
maintenance train. For detailed information on release trains, visit
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps4324/product_bulletin_c25_468800
.html
.
The following list highlights the primary hardware and software features in this release:
●
New hardware support including X2 10GB pluggable modules, DWDM and ZR Modules
●
Cisco IOS Software Release 12.2(50)SG continues to enhance Cisco Identity-based
Networking Services (IBNS) with several primary innovations to simplify identity
configuration that will support heterogeneous endpoint device environment, transparently
integrate with existing network and Internet Protocol Telephony (IPT) infrastructure, and
provide IT administrators comprehensive policy enforcement options.
●
VLAN Trunking Protocol Version 3 (VTPv3) supports the advertisement of the extended
range of VLANS (4094). Configuration changes for the entire VLAN range can be made
centrally on one switch and automatically communicated to all other switches in the
network.
●
Enhance campus and data center network virtualization with Multicast VRF-Lite extending
the virtualization capabilities on the Cisco Catalyst 4500 Sup6E and 4900M and providing
additional IP VRF-Aware services such as NTP, HSRP,VRRP, Telnet, Ping
●
Energy saving features in 12.2(50)SG: Ability to monitor and police power consumption.
Automatic Power Optimization: unused ports are powered off resulting in savings of up to