Hi, On Tue, Apr 17, 2018 at 12:34:18PM +0300, Saku Ytti wrote: > On 17 April 2018 at 11:25, James Bensley <jwbens...@gmail.com> wrote: > > > Also you say you have OSPF and LDP up but if you bring up BGP over > > this link you may have issues. BGP packs UPDATE messages up to the TCP > > MSS (derived from the link MTU). If you are carrying the full table > > BGP messages are limited to 4096.
Which does not stop TCP from coalescing two messages into one 8 kbyte packet.
(As in "I have had a link that was transported over someone else's packet
network, and when they re-routed in an outage, I lost 8 bytes MTU,
resulting in TCP failing across a 9200-minus-8-byte-link...")
gert
--
"If was one thing all people took for granted, was conviction that if you
feed honest figures into a computer, honest figures come out. Never doubted
it myself till I met a computer with a sense of humor."
Robert A. Heinlein, The Moon is a Harsh Mistress
Gert Doering - Munich, Germany g...@greenie.muc.de
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