[c-nsp] BGP table growth and memory

lee.e.rian at census.gov lee.e.rian at census.gov
Tue Jun 21 13:03:52 EDT 2005


Rodney Dunn <rodunn at cisco.com> wrote on 06/21/2005 10:30:07 AM:

> There are 3 cases attached to it.
>
> CSCsa45474
> Externally found enhancement defect: New (N)
> Ability to block overlapping BGP prefixes from being installed in RIB
>
> I tried pretty hard on this one but just couldn't move it along.
>
> With some more request I might could.

Could you explain how it would work again?  I didn't attach a case to the
feature request because I didn't understand all the implications of not
installing a more specific route if a less specific existed.

And this seems to be what started the thread up again:
> Unfortunately, these days it seems to be "pretty normal" to have a /19
> and announce it as 32 x /24, and similar garbage that has no benefit
> for anyone.

My understanding is that even with this new feature it wouldn't make any
difference to the routing table size if somebody advertised their /19 as 32
x /24.  Correct?

Thanks,
Lee


> On Tue, Jun 21, 2005 at 12:07:24PM +0200, Gert Doering wrote:
> > Hi,
> >
> > On Tue, Jun 21, 2005 at 09:24:00AM +1000, David J. Hughes wrote:
> > > hop.  It even got to the stage that Rodney Dunn had a TAC feature
> > > request case opened for it so we could all voice our desire for a
> > > feature that would increase the life span of our routers.  And when
the
> > > votes were counted only 2 people bothered to add their name to the
> > > list.
> >
> > Hmmm.  At that time, I wasn't able to directly open TAC cases for our
BGP
> > routers (don't ask).  "In the near future", I will be :-) - so what's
> > the feature request bug ID to attach to?  Is it publically visible?
> >
> > > P.s. thanks for letting me share your rant Gert ;-)
> >
> > Always at your service :-) - thanks for reminding me about this.
> >
> > gert
> >
> > --
> > Gert Doering
> > Mobile communications ... right now writing from * back @ home *
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