Cisco IOS Software for the Cisco Catalyst 4500 Series Supervisor Engine 6-E (Enterprise Services image with 3DES)
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.
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 12W per line card. Available with the Supervisor 6-E ,E-Series line cards and 4900M with half cards
-Point to Point Protocol over Ethernet Intermediate Agent (PPPoEIA) enables subscriber line identification over Ethernet during the PPPoE discovery phase. The switch tags PPPoE discovery packets destined for the broadband remote access server with the subscriber's circuit and remote IDs and untags PPPoE discovery packets destined for the subscriber.
-12.2(50)SG improves operational manageability by delivering additional service enhancements (CNS agents, Config Change tracking ID, Rollback Confirmed Change).
