[c-nsp] 2851 and full BGP

[Paul Cosgrove]

Hi Antal,

Is that a workaround for a specific bug?

Usually the IP MTU defaults to the MTU.  You can check them with "show 
int" vs "show ip int".

If the TCP session is between directly connected IPs, a TCP MSS equal to 
40 byte less than the IP MTU is used.

In other cases (e.g. peerings between loopbacks) an MSS 536 bytes is 
used unless PMTUD is enabled and can determine a higher value.

Paul.


Antal Gergely wrote:
> Jay Nakamura wrote:
> 
>> Datagrams (max data segment is 536 bytes):
> 
> 
> put a "ip mtu 1500" on the wan interface.
> its not the same as mtu xxxx
> 
> 
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