[c-nsp] Extremely slow performing show running-config

[Phil Mayers]

Jason Koh wrote:
> Hi there
> 
> I have a strange problem with a pair of cat6509s. Both are connected to each
> other via OSPF and IBGP, with EBGP with my upstream providers.
> 
> Whenever I use show running-config, it will pause for an extremely long time
> after the line "Building Configuration". It happens from either console or
> telnet sessions. At first I thought it was a CPU or memory problem, but
> "show proc cpu" and "show proc mem" shows nothing out of the ordinary (cpu
> less than 20% and memory with more than 256M free). Rebooting both machines
> doesn't solve the problem either.
> 
> After further investigations, I found out that the same problem occurs when
> I do the following as well.
> 
> 1) copy running-config startup-config
> 2) write memory
> 
> Show startup-config does not have this problem.

Some questions:

  1. How long is "extremely long"
  2. How big (in lines and in bytes) is your startup config
  3. Which SUP, IOS version and linecards are you using