From: Omer Ansari (omer@xxxxxxxxxx)
Date: Tue Aug 20 2002 - 22:03:37 GMT-3
   
Ademola,
looks like an ebgp route; AD = 20 better than IBGP right?
On Mon, 19 Aug 2002, Ademola Osindero wrote:
> Group,
>
> I thought MED is meant to take preference over internal or external routes
> but i can't see it happen in the case below. R6 prefers 172.16.20.2 to
> 192.68.6.1 to reach network 172.16.10.0 despite the fact that the latter as
> a lower metric of 0.
>
> Can anyone explain this?
>
> r6#sh ip bgp
> BGP table version is 7, local router ID is 192.168.11.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i - interna
l
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
>     Network          Next Hop            Metric LocPrf Weight Path
> *> 172.16.1.0/24    172.16.20.2            100             0 3 i
> * i                 192.68.6.1              50    100      0 3 i
> *> 172.16.10.0/24   172.16.20.2            100             0 3 i
> * i                 192.68.6.1               0    100      0 3 i
>
> r6#sh ip bgp 172.16.10.0
> BGP routing table entry for 172.16.10.0/24, version 7
> Paths: (2 available, best #1, table Default-IP-Routing-Table)
>    Advertised to non peer-group peers:
>    192.68.6.1
>    3
>      172.16.20.2 from 172.16.20.2 (172.16.220.1)
>        Origin IGP, metric 100, localpref 100, valid, external, best
>    3
>      192.68.6.1 from 192.68.6.1 (192.68.10.2)
>        Origin IGP, metric 0, localpref 100, valid, internal
>
>
> Osindero Ademola
> Schlumberger Network Solutions
> Tel: 234 1 261 0446 Ext 5427
> Fax 234 1 262 1034
> email:osindero@lagos.sns.slb.com
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