nanog mailing list archives

Re: Route table growth and hardware limits...talk to the filter


From: Randy Bush <randy () psg com>
Date: Sun, 09 Sep 2007 12:11:19 +0530


If you do save it in your BRIB, then you can do this filtering between
RIB and FIB.  That turns out to be a completely local feature, requiring
no protocol changes or additions whatsoever, and thus does not even
require an RFC or Internet draft.  This feature has been seen in some
circles under the name "ORIB".  Ask YFRV's PM for it.  ;-)

Note that this feature *is* CPU intensive.  This also does not decrease
the RP RAM usage the way that update filtering would.  In fact, due to
the overhead of tracking filtered and non-filtered prefixes, there is
additional RP RAM usage.  YMMV.

so, bottom line, no help other than reducing fib?

randy


Current thread: