Getting pretty close to default IPv4 route maximum for 6500/7600 routers.

Jimmy Hess mysidia at
Wed Jun 11 09:07:22 UTC 2014

On Wed, Jun 11, 2014 at 1:28 AM, Saku Ytti <saku at> wrote:
> On (2014-06-10 12:39 -0500), Blake Hudson wrote:
> There is nothing to summarize away from global BGP table, if you have number
> showing less, it's probably counter bug or misinterpretation.
> Global BGP table, single BGP feed, will take same amount of RIB and FIB.

That depends....  if by  "summarize"   they mean filter prefixes
longer than say  /22,  or otherwise...:  discard  extraneous prefixes
from networks that were allocated a /16   network but chose to
deaggregate and advertise every /24  ------   choosing to accept only
the /16 advertisement  instead of installing these extra /24 routes in
the FIB,   then there are plenty of entries to "summarize" away.


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