Undocumented Feature in IOS 11.2
I found an undocumented feature in Cisco IOS 11.2.
The command "show interface description" exists in newer versions, so I typed it in out of habit. Even though it doesn't tab-complete it, or know what that option to the sh int command is, it still works... Albeit badly, and it gives terribly formatted output (All on one line, no spaces between names, no blank spaces where unlabeled ports are, etc)
It still works though! :-)
Makes me wonder how many undocumented features exist in versions of IOS earlier than they are supposedly "released".
drpepper#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2900XL Software (C2900XL-HS-M), Version 11.2(8.10)SA6,
MAINTENANCE INTERIM SOFTWARE
Copyright (c) 1986-1902 by cisco Systems, Inc.
Compiled Fri 15-Feb-02 09:47 by devgoyal
Image text-base: 0x00003000, data-base: 0x0020E278
...(rest of output truncated for brevity)
drpepper#sh int ?
FastEthernet FastEthernet IEEE 802.3
Null Null interface
VLAN Switch VLAN Virtual Interface
accounting Show interface accounting
crb Show interface routing/bridging info
irb Show interface routing/bridging info
link-trap Show interface traps on no link
drpepper#sh int desc
Blacktea LinkCSH UplinkJolt ManagementRESNETRESNETRESNETRESNET