Re: Best Practice with regards to configuring BGP policy

From: Hobbs (deadheadblues@gmail.com)
Date: Sun Sep 21 2008 - 22:34:17 ART


If you do show ip bgp x.x.x.x you will see internal or external. In the
example below 172.12.12.2 is an ibgp neighbor, the others are external.

R1#show ip bgp 3.3.3.0
BGP routing table entry for 3.3.3.0/24, version 24
Paths: (3 available, best #3, table Default-IP-Routing-Table)
Advertised to non peer-group peers:
172.12.12.2 172.12.14.4
400
172.12.12.2 from 172.12.12.2 (2.2.2.2)
Origin IGP, metric 100, localpref 100, valid, internal
400
172.12.14.4 from 172.12.14.4 (4.0.3.4)
Origin IGP, metric 150, localpref 100, valid, external
65003
172.12.13.3 from 172.12.13.3 (3.3.3.3)
Origin IGP, metric 200, localpref 100, valid, external, best
R1#

On Sun, Sep 21, 2008 at 5:33 PM, ccie2k4@gmail.com <ccie2k4@gmail.com>wrote:

> So would it be right to assume that it does not matter if the local
> preference is set in a outbound route-map and there is no difference.
>
> Also had another question with regards to the network statement in BGP.
> Does
> a route that is in the bgp table due to a network statement consider EBGP
> or
> IBGP and is there a way to tell if a route is a EBGP route or IBGP route if
> the AS Path is not present. It is one of the criterial for path selection
> however can't seem to tell how is it concluded. Thx
>
>
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