From: Nitro Drops (nitrodrops@hotmail.com)
Date: Wed Sep 10 2008 - 10:12:47 ART
How come after R3 peers with R2 and R1, R3 is able to learn prefixes from both
the peers, after a while, it reduces to just only from one peer? The prefixes
learnt shows everything are the same in terms of metrics, local preferences,
weight and path.
Does it means, when the same prefix is learnt from 2 different peers, which
are of the same equal values, only one can exist?
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Rack1R3(config-if)#do sh ip bgp
BGP table version is 127, local router ID is 150.1.3.3
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 28.119.16.0/24 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
*> 28.119.17.0/24 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
*> 112.0.0.0 174.1.26.6 0 100 0 (65267) 54 50 60
i
* 150.1.5.5 0 100 0 (65145) 54 50 60
i
*> 113.0.0.0 174.1.26.6 0 100 0 (65267) 54 50 60
i
* 150.1.5.5 0 100 0 (65145) 54 50 60
i
*> 114.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
*> 115.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
*> 116.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
*> 117.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
*> 118.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
Network Next Hop Metric LocPrf Weight Path
* 150.1.5.5 0 100 0 (65145) 54 i
*> 119.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
* 150.1.5.5 0 100 0 (65145) 54 i
Rack1R3(config-if)#
Rack1R3(config-if)#do sh ip bgp
BGP table version is 127, local router ID is 150.1.3.3
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 28.119.16.0/24 174.1.26.6 0 100 0 (65267) 54 i
*> 28.119.17.0/24 174.1.26.6 0 100 0 (65267) 54 i
*> 112.0.0.0 174.1.26.6 0 100 0 (65267) 54 50 60
i
*> 113.0.0.0 174.1.26.6 0 100 0 (65267) 54 50 60
i
*> 114.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
*> 115.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
*> 116.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
*> 117.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
*> 118.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
*> 119.0.0.0 174.1.26.6 0 100 0 (65267) 54 i
Rack1R3(config-if)#
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Cheers
Nit
This archive was generated by hypermail 2.1.4 : Sat Oct 04 2008 - 09:26:17 ART