Cisco Systems® announces Cisco IOS® Software updates for the Cisco® Catalyst® 3550, Catalyst 2950, Catalyst 2950 LRE, and Catalyst 2940 series and Cisco Catalyst 2955 Intelligent Ethernet switches.
• 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 patch level 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.
• Standard 802.1x with Wake on LAN Feature-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.
• Extended VLAN IDs-This feature extends the existing support for the full range of 4094 VLAN IDs to the Cisco Catalyst 2940 platform, which was restricted to using VLAN IDs in the range 1 to 1005.
• Cisco Networking Services (CNS) Agent Support
Table 1. New Features in Cisco IOS Software Release 12.1(22)EA5
Table 2. Layer 2+ Products Supported with This Release
• Cisco Catalyst 2955 switches: http://www.cisco.com/cgi-bin/tablebuild.pl/cat2955
• Cisco Catalyst 2950 Series switches: http://www.cisco.com/cgi-bin/tablebuild.pl/cat2950
• Cisco Catalyst 2950 LRE Series switches: http://www.cisco.com/cgi-bin/tablebuild.pl/cat2950LRE
• Cisco Catalyst 2940 Series switches: http://www.cisco.com/cgi-bin/tablebuild.pl/cat2940
• Cisco Catalyst 2955 switches: http://www.cisco.com/en/US/products/ps6738/index.html
• Cisco Catalyst 2950 Series switches: http://www.cisco.com/go/catalyst2950
• Cisco Catalyst 2950 LRE Series switches: http://www.cisco.com/en/US/products/hw/switches/ps4916/index.html
• Cisco Catalyst 2940 Series switches: http://www.cisco.com/go/catalyst2940
• Cisco Catalyst 2950, 2950 LRE, and 2940 series and Catalyst 2955 release notes:
Software Image Migration Guide
Figure 1. Cisco IOS Software Release 12.1EA Release Train