From: David Wolsefer (DWolsefer@xxxxxxxxxxxx)
Date: Wed May 01 2002 - 17:28:37 GMT-3
! Prevent a mistake or mishap by our peer (or someone with whom our peer
! has a peering agreement) from causing router meltdown by filling the
! routing and BGP tables. This is a hard limit. At 75% of this limit,
! the IOS will issue log messages warning that the neighbor is approaching
! the limit.
! The warning water mark can be modified by placing a value after the
! maximum prefix value, e.g. maximum-prefix 125000 50. This will set the
! IOS to issue warning messages when the neighbor reaches 50% of the limit.
neighbor X.X.X.X maximum-prefix 125000
-----Original Message-----
From: Lupi, Guy
To: 'Peter van Oene'; 'ccielab@groupstudy.com'
Sent: 5/1/2002 3:49 PM
Subject: RE: BGP tables increasing significantly
Ok, I'll bite, I assume your talking about the maximum prefix feature,
but
that would either shut down your bgp session or if configured to, send
you a
warning. Is that what you are referring to, or is there some way to
limit
the prefixes and just drop any new ones that exceed a threshold?
Thanks.
> -----Original Message-----
> From: Peter van Oene [mailto:pvo@usermail.com]
> Sent: Wednesday, May 01, 2002 2:33 PM
> To: 'ccielab@groupstudy.com'
> Subject: RE: BGP tables increasing significantly
>
>
> prefix limits are your friend
>
> At 10:53 AM 5/1/2002 -0700, Andy Singh wrote:
> >Routers running BGP with 128mb ram are crashing because of
> this, including
> >ours.
> >
> >-----Original Message-----
> >From: John Mistichelli [mailto:jmistichelli@yahoo.com]
> >Sent: Wednesday, May 01, 2002 9:29 AM
> >To: Howard C. Berkowitz; 'ccielab@groupstudy.com'
> >Subject: Re: BGP tables increasing significantly
> >
> >
> > I noticed it this morning.
> > "Howard C. Berkowitz" <hcb@gettcomm.com> wrote: At 10:04
> AM -0400 5/1/02,
> >Lupi, Guy wrote:
> > >Has anyone else noticed that their bgp prefixes received from their
> > >providers has gone up by about 3 to 4 thousand routes in
> the last week or
> > >so? Is there an "issue" somewhere on the net? Or is this
> something that
> > >happens periodically and I am just now noticing it?
> >
> >A sudden jump has been reported by several carriers on NANOG. Not
> >everyone is seeing it, and people are trying to figure out the cause.
> >Quite a number saw about a 10K increase about 6:30 AM (GMT-5) this
> >morning (May 1).
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