Re: BGP LOCAL PREF: Explain me this.

From: mikey (mikey@xxxxxxxxxxxxxx)
Date: Sat Feb 10 2001 - 14:46:54 GMT-3


   
Note from your BGP table that none of the routes learned via iBGP with a
next hop of 172.16.11.1 are the best route. That next hop is proably
external to the local AS. I would look to your IGP routing table to see if
their is a reachability issue with that next hop address.

mikey
----- Original Message -----
From: Devender Singh <devender.singh@cmc.cwo.net.au>
To: Ccielab@Groupstudy. Com (E-mail) <ccielab@groupstudy.com>
Sent: Saturday, February 10, 2001 7:48 AM
Subject: BGP LOCAL PREF: Explain me this.

> I always thought local pref is number two high in bgp decision process
after
> weight.
> I am getting best path with local-pref of 50 instead of 200. It does not
> make much sense to me. Do you guys agree with me.
>
> r3#sh ip bgp
> BGP table version is 33, local router ID is 172.17.33.3
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 0.0.0.0 172.17.34.4 50 0 200 i
> * i1.1.1.0/24 172.16.11.1 200 0 300 400 i
> *> 172.17.34.4 50 0 200 400 i
> * i2.1.1.0/24 172.16.11.1 200 0 300 400 i
> *> 172.17.34.4 50 0 200 400 i
> * i3.0.0.0 172.16.11.1 200 0 300 400 i
> *> 172.17.34.4 50 0 200 400 i
> * i192.168.16.0 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
300
> ?
> * i192.168.17.0 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
300
> ?
> * i192.168.18.0 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
300
> ?
> * i192.168.19.0/28 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
> 300 ?
> * i192.168.19.16/28 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
> 300 ?
> * i192.168.19.32/28 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
> 300 ?
> * i192.168.19.48/28 172.16.11.1 0 200 0 300 ?
> *> 172.17.34.4 50 0 200 400
> 300 ?
> * i200.1.3.0 172.16.11.1 200 0 300 400 200
?
> *> 172.17.34.4 0 50 0 200 ?
> * i201.0.1.0 172.16.11.1 200 0 300 400 200
?
> *> 172.17.34.4 0 50 0 200 ?
> * i201.1.1.0 172.16.11.1 200 0 300 400
200
> ?
> *> 172.17.34.4 0 50 0 200 ?
> * i201.1.2.0 172.16.11.1 200 0 300 400
200
> ?
> *> 172.17.34.4 0 50 0 200 ?
> * i201.2.1.0 172.16.11.1 200 0 300 400
200
> ?
> *> 172.17.34.4 0 50 0 200 ?
> r3#
>
> Devender Singh
> BE(Hons), CCNP
> IP Solution Specialist
>



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