[j-nsp] SSH/Telnet session hanging

[Alexander Frolkin]

Hi,

> I have resolved the session hanging issue by lowering the MTU value to
> 1920 on this router. But the BGP session is now flapping a lot and
> it's flapping with both the RRs now. Should I try the tcp-mss option
> or should i further play with the MTU value. I lowered the value to
> 1800 but the flapping was still there. Should I lower this further?

If it helps, you can use ping to find out the MTU.  On JunOS:

  ping <hostname> size 1472 do-not-fragment

On Linux:

  ping -M do -s 1472 <hostname>

Increase the size until the pings fail.  The MTU is then the maximum
ping size plus 28.


Alex