[46862] in North American Network Operators' Group
limiting # of prefixes from a BGP peer (Was: Re: genuity - any good?)
daemon@ATHENA.MIT.EDU (Rafi Sadowsky)
Sat Apr 13 10:19:06 2002
Date: Sat, 13 Apr 2002 17:18:35 +0300 (IDT)
From: Rafi Sadowsky <rafi-nanog@meron.openu.ac.il>
Reply-To: <nanog@merit.edu>
To: Mark Kent <mark@noc.mainstreet.net>
Cc: <nanog@merit.edu>
In-Reply-To: <200204130027.g3D0Roo8016839@noc.mainstreet.net>
Message-ID: <Pine.GSO.4.31.0204131715070.744-100000@meron.openu.ac.il>
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Errors-To: owner-nanog-outgoing@merit.edu
## On 2002-04-12 17:27 -0700 Mark Kent typed:
MK>
MK> To address Sean's point about mistakes turning one /16 into a zillion
MK> entries, is there any way to allow only some specified maximum number
MK> of routes from a bgp neighbor? I know that I'ld be happy if my
MK> upstreams gave me a buffer of, say, 10 entries above my typical number
MK> of aggregates.
MK>
MK> -mark
MK>
MK>
For Cisco IOS just add this under the "router bgp" section
---
neighbor <IP address> maximum-prefix <nnnn>
---
Exceeding the maximum prefix number will shutdown the BGP session until a
manual clear
Enjoy
Rafi
--
Rafi Sadowsky rafi@oumail.openu.ac.il
Network/System/Security VoiceMail: +972-3-646-0592 FAX: +972-3-649-8629
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