Cisco Systems® announces Cisco IOS® Software updates for Cisco® Catalyst® 3750, Catalyst 3560, Catalyst 3550, and Catalyst 2970 series Intelligent Ethernet switches. This new release furthers Cisco leadership in providing secure, reliable, and feature-rich LAN switching solutions.
• NAC L2 802.1x-NAC L2 802.1x enables a switch to enforce network access privileges based on information such as the revision of anti-virus software or OS level patches running on the end station. This feature uses the 802.1X port authentication mechanism to allow an agent running on the end station to provide Network Admission Control (NAC) information to the AAA server along with the authentication credentials. The AAA server can direct the end station into an appropriate VLAN based on the NAC information.
• NAC L2 IP-NAC L2 IP enables a switch to enforce network access privileges based on information such as the revision of anti-virus software or OS level patches running on the end station. This feature detects end stations by snooping ARP and DHCP requests, which allows it to support multiple end stations connected to a single port. The switch validates newly discovered stations by using the EAP over UDP (EoU) protocol to communicate with a AAA server and uses port ACLs to enforce the appropriate network access based on the NAC information.
• Virtual Routing and Forwarding (VRF) Lite-VRF Lite allows the customer to configure multiple private routing domains on the switch; each domain has its own routing table, and potentially overlapping network addresses can be routed within each separate domain without conflict. VLANs can be configured to participate in one VRF domain.
• IEEE 802.1s Compliance-This enhancement brings the Cisco Multiservice Transport Protocol (MSTP) implementation up to the IEEE 802.1s standard, while retaining backward compatibility with the Cisco prestandard implementation.
• Inline Power Consumption-This feature allows the network administrator to configure on a per-port basis the actual power requirements of attached powered devices, overriding the classification settings of the powered device. It allows the customer to manage the power budget of a Cisco Catalyst 3750 and Catalyst switch, down to the individual port level. Many default Class 0 powered devices require much less than the full 15.4W of power that is associated with Class 0. This feature, therefore, helps extend the Power over Ethernet (PoE) power budget. Caution: Misconfiguring this feature may cause damage to the switch and void your warranty. Take precaution not to oversubscribe the power supply.
• Configuration Logging-This configuration option sends a syslog message for every configuration change made to the switch for tracking and auditing purposes.
• Unique Device Identifier (UDI)-With UDI, customers can uniquely identify and track Cisco products through their business and network operations. The UDI provides a hardware product identification standard that is consistent across Cisco products, giving Cisco customers the ability to automate their asset-management systems. In addition, UDI offers end-to-end product-identification data integrity, providing a consistent electronic, physical, and associated business-to-business information product-identification standard.
• Standard 802.1x with Wake on LAN-This feature allows transmission of frames from an unauthenticated port to the connected end station, blocking only inbound traffic until authentication completes. Customers deploying IEEE 802.1X port authentication and also using remote desktop-management systems can use this feature to "wake up" PCs and perform maintenance, even if a user is not currently logged in or the PC is down.
• Secure Copy Protocol (SCP)-SCP allows a user with appropriate authorization to copy any file that exists in the Cisco IOS Software File System to and from a switch by using the copy command. This protocol uses the Secure Shell (SSH) Protocol as a transport mechanism for file copy operations, so that software images, configuration files, etc. can be transferred to or from the switch over a secure channel. It also uses authentication, authorization, and accounting (AAA) to authorize a user's privilege level.
• Nonstop Forwarding (NSF) Awareness-This feature enhances the Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Enhanced Interior Gateway Routing Protocol (EIGRP) routing protocols so that they are "aware" of being connected to a router supporting Cisco NSF. It speeds convergence when the NSF router goes through a failover sequence.
• Cross-Stack Link Aggregation Control Protocol (LACP)-Although the Cisco Catalyst 3750 switches have supported cross-stack Cisco EtherChannel® configurations (consisting of ports on multiple stack members) since their initial release, they currently require static, manual configuration; use of the LACP for negotiated Cisco EtherChannel formation is supported only for ports on a single switch. This feature extends LACP support so that ports can be spread across stack members.
Table 1. Cisco IOS Software Release 12.2(25)SEC New Features
Table 2. Cisco Catalyst Switches Supported with Cisco IOS Software Release 12.2(25)SEC
Cisco EtherSwitch Service Modules for Cisco 2600, 2800, 3700, 3800 Series Routers Part Numbers
• Cisco Catalyst 3750 Series software: http://www.cisco.com/cgi-bin/tablebuild.pl/cat3750
• Cisco Catalyst 3560 Series software: http://www.cisco.com/cgi-bin/tablebuild.pl/cat3560
• Cisco Catalyst 3550 Series software: http://www.cisco.com/cgi-bin/tablebuild.pl/cat3550
• Cisco Catalyst 2970 Series software: http://www.cisco.com/cgi-bin/tablebuild.pl/cat2970
• Cisco Catalyst 3750 Series switches: http://www.cisco.com/go/catalyst3750
• Cisco Catalyst 3560 Series switches: http://www.cisco.com/go/catalyst3560
• Cisco Catalyst 3550 Series switches: http://www.cisco.com/go/catalyst3550
• Cisco Catalyst 2970 Series switches: http://www.cisco.com/go/catalyst2970
• Cisco Catalyst 3750, 3560, 3550, and 2970 series release notes:
• Cisco EtherSwitch Service Modules for Cisco 2600, 2800, 3700,3800 Series Routers http://www.cisco.com/en/US/products/ps5854/products_data_sheet0900aecd8028d15f.html
Software Image Migration Guide
Figure 1. Cisco IOS Software Release 12.2 Release Train