Re: rd (route distinguisher) in mpls l3vpn

The next hop of the route should be different, even if the RD's are the same
on 2 different routers.

The RD's do not HAVE to be different but it is recommended that they should.

The VRF's do not HAVE to be different or the same. It really is a matter of
how confusing you want it to be.:-)

In either case........Neither the RD or the VRF identify the VPN.

Paul

-- 
Paul Negron
CCIE# 14856 CCSI# 22752
Senior Technical Instructor
> From: Aaron <aaron1_at_gvtc.com>
> Reply-To: Aaron <aaron1_at_gvtc.com>
> Date: Sat, 10 Mar 2012 15:16:25 -0600
> To: 'Aaron' <aaron1_at_gvtc.com>, 'CCIE GROUPSTUDY' <ccielab_at_groupstudy.com>
> Subject: RE: rd (route distinguisher) in mpls l3vpn
> 
> I think it's self-explanatory..how would you be able to *distinguish* routes
> if they header (rd) prepended to the ipv4 prefix isn't unique from another.
> 
>  
> 
> So within a L3VPN..
> 
>  
> 
> Ce1----pe1----p----pe2-----ce2
> 
>  
> 
> .I understand that the pe's have the vrf and rd's within them...does the vrf
> A rd of pe1 need to be different than the vrf A rd of pe2 ?
> 
>  
> 
> Aaron
> 
>  
> 
>  
> 
> From: Aaron [mailto:aaron1_at_gvtc.com]
> Sent: Saturday, March 10, 2012 3:11 PM
> To: 'CCIE GROUPSTUDY'
> Subject: rd (route distinguisher) in mpls l3vpn
> 
>  
> 
> does the rd have to be unique?
> 
>  
> 
> Aaron
> 
> 
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