"show users" hangs 3550

[ajsouthard]

The "sh users" command waits for nearly 20 seconds before returning the location IP part of the output.

Running 12.1(9) EA1 EMI. Using TACACS authentication if that makes any difference.

Is this a bug ? What does the command do to determine the location IP ?

xxxxxxx>sh users

Line User Host(s) Idle Location

* 1 vty 0 xxxxxxxxxx idle 00:00:00 172.16.1.205

Interface User Mode Idle Peer Address

xxxxxxx>

[jbohla]

This is not a bug. I have observed this on all platforms.

configure "no ip domain-lookup". It is basically trying to resolve DNS. When u disable dns lookup, it would come back fast.

[ajsouthard]

Great answer. Thanks.