[c-nsp] VTY locks on show commands

[Andrew Yourtchenko]

On 7/2/07, Vincent De Keyzer <vincent at autempspourmoi.be> wrote:

> > How do I change the MTU to fix it?  The frame circuit is in a Telco's
> > area I don't normally work in.
>
> Well, you don't really have to change the MTU - you'd rather ask the telco
> why you can't ping with large packets.
>
> Normally you should get something like this:
>
> Router#ping 172.20.2.14 size 1500 df-bit

Vincent,

This would be necessary if you have the PMTUD enabled. Last time I
tried, the PMTUD was disabled by default, hence the MSS used was 536,
if my memory serves me well.

Scott,

You can check if it is enabled by doing "sh run | inc path-mtu".

Although I'd first configure the "terminal length 3" (or similar tiny
number, YMMV) - this will cause the telnet traffic to come in very
small segments - so then for the starters you should be able to slowly
page through the entire config, and see what is done there and for
what reasons, before doing any rough movements :-)

if the tiny pager trick works, then you could do some further
diagnostics via the logging buffered.

cheers,
andrew