[c-nsp] BGP KEEPALIVE maximum frequency

Łukasz Bromirski lukasz at bromirski.net
Sat Dec 4 07:49:55 EST 2010


On 2010-12-04 12:40, M. V. wrote:
> hi,
>
> i have sort of a technical question.
> RFC4271 (main RFC of BGP4) says: "KEEPALIVE messages MUST NOT be sent more
> frequently than one per second". i checked cisco with wireshark and saw it sends
> more than 1 KEEPALIVE (sometimes 2, but usually 3) in less than 1 second right
> after OPEN messages are sent. and then after that, everything gets back to
> normal, and it sends KEEPALIVEs just every 60 seconds.

Do you have more details on this specific setup? IOS version? Both
devices were Cisco or Cisco<>3rd party? Was it on the real boxes
or under dynamips?

-- 
"Everything will be okay in the end.  |                 Łukasz Bromirski
  If it's not okay, it's not the end." |      http://lukasz.bromirski.net


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