[c-nsp] BGP MSS=576 bytes

Łukasz Bromirski lukasz at bromirski.net
Wed Feb 11 18:39:52 EST 2009


On 2009-02-11 21:51, Jose Conceicao wrote:
> After choosing whatever prefered method, wouldn't these BGP sessions
> need to be re-established to take effect? (since MSS is only carried
> in SYN and SYN/ACKs)

Sure.

> And shouldn't u account for TCP/IP overhead? (just being lazy by not
> testing this in lab)

TCP/IP overhead of what actually?

Here's a whitepaper on PMTUD/MSS:
http://www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800d6979.shtml

And there's CSCef52888 for all of You pre 12.2(18)SXF12 guys which
doesn't actually have PMTUD do it's work.

-- 
"Don't expect me to cry for all the     |               Łukasz Bromirski
  reasons you had to die" -- Kurt Cobain |    http://lukasz.bromirski.net


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