Catalyst 6500 Series Cisco IOS Software Documentation, 12.1E

• Release Notes for Cisco IOS Release 12.1 E on the Catalyst 6000 and Cisco 7600 Supervisor Engine and MSFC
  For Cisco IOS Release 12.1(27b)E and all earlier 12.1 E releases

• Catalyst 6500 Series Cisco IOS Command Reference, 12.1 E

• Catalyst 6500 Series Cisco IOS Software Configuration Guide, 12.1E

• Catalyst 6500 Series Cisco IOS System Message Guide, 12.1 E

• Network-Based Application Recognition
  The NBAR and dNBAR features on all platforms for all Cisco IOS Releases are covered in this document.

• Enhanced Password Security - Phase I
  12.1(8a)E