limiting # of prefixes from a BGP peer (Was: Re: genuity - any good?)
Rafi Sadowsky
rafi-nanog at meron.openu.ac.il
Sat Apr 13 14:18:35 UTC 2002
## 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 at oumail.openu.ac.il
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