для Cisco Cisco IOS Software Release 12.4(2)XB6

 lists the release history for this feature.

Not all commands may be available in your Cisco IOS software release. For release information about a 
specific command, see the command reference documentation.

Use Cisco Feature Navigator to find information about platform support and software image support. 
Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images 
support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to 

http://www.cisco.com/go/cfn

. An account on Cisco.com is not required.

 lists only the Cisco IOS software release that introduced support for a given feature in a given 

Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS 
software release train also support that feature.

NPE-G2 Support for the show environment 
Command

12.4(4)XD

The output of the show environment command has been 
modified to support the NPE-G2 network processing 
engine.

This feature was introduced on the Cisco 7200 VXR 
NPE-G2 in Cisco IOS Release12.4(4)XD.