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Re: BGP terminology question
- From: Patrick W. Gilmore
- Date: Sun Nov 06 14:06:25 2005
On Nov 6, 2005, at 1:05 PM, NetSecGuy wrote:
I asked this question on inet-access and it was suggested I try NANOG.
I understand BGP flapping to be announcements followed by withdraws
over a short period. I am seeing a peer with a large number of
announcements and the normal number of withdraws. Is there a term
to describe what I am seeing? I'd like to understand what is
happening, but I've been looking for more info and can't seem to
find anything. I suspect I am just not using the right words to
search.
If there isn't a term, why would a peer announce thousands of time
an hour with very few withdraws?
There is a term, it's called "broken".
A peer should never announce a route it has already announced unless
that route is withdrawn. (If the session goes down or is reset, that
counts as a withdrawal.)
--
TTFN,
patrick
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