Re: BGP Route Selection

11)Lowest Router-id
12) Lowest IP address between links

-- 
Paul Negron
CCIE# 14856 CCSI# 22752
Senior Technical Instructor
www.micronicstraining.com
> From: Edward John <edwardjohn2020_at_googlemail.com>
> Reply-To: Edward John <edwardjohn2020_at_googlemail.com>
> Date: Wed, 15 Sep 2010 22:55:53 +0300
> To: 2beone <2beone_at_gmail.com>
> Cc: Narbik Kocharians <narbikk_at_gmail.com>, Cisco certification
> <ccielab_at_groupstudy.com>, Cisco certification <cisco_at_groupstudy.com>
> Subject: Re: BGP Route Selection
> 
> I checked this link already. What process/step you recommend me to choose
> here? Can you elaborate bit exactly?
> 
> 1. Weight - Local to the router - Not Applicable here
> 2. LPF  - Local to the AS - Not Applicable here
> 3. Preferrence
> network>redistribute - Not applicable here since prefix is originated by
> network from single place
> 4. Shortest AS-Path -  Not applicable here, AS path are  same & prepending
> will make the prefix only less preferred.
> 5. Origin Type  - Prefix is already seen as IGP origin
> 6. MED
> Already MED at R1 is 0 for this prefix. no -ve value calculated
> 7. eBGP>iBGP -  Both path are eBGP learned at R1
> 8. Lowest IGP metric to BGP next-hop - both path directly connected eBGP
> peers
> 9. NO Multipath required
> 10. When both are external, most stable one (oldest) is preferred
>  <------------------------- ( I am stuck here)
> 
> 
> ******************************************************************************
> *******
> R1#show ip bgp 192.168.5.0
> BGP routing table entry for 192.168.5.0/24, version 8
> Paths: (2 available, best #1, table Default-IP-Routing-Table)
>   Advertised to non peer-group peers:
>   10.10.19.9
>   55 10
>     10.10.110.10 from 10.10.110.10 (173.31.0.10)
>       Origin IGP, localpref 100, valid, external, best
>   55 10
>     10.10.19.9 from 10.10.19.9 (173.31.0.9)
>       Origin IGP, localpref 100, valid, external
> 
> ************************************************************************
> 
> 
> -- 
> 
> *Regards,*
> *John*
> 
> 
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