[c-nsp] BGP with MPLS

James Bensley jwbensley at gmail.com
Tue Oct 4 11:36:10 EDT 2016


On 4 October 2016 at 04:00, Maile Halatuituia <maile.halatuituia at tcc.to> wrote:
> Hi
>
> Can i do BGP without MPLS between my two PE routers.
>
> My question is to my understabd that BGP carry the means of reachability between the two PE but it is the mpls actually carry the traffic. Can someone correct me if i am wrong or suggest any best approach to this.
>
> The reason is that my PE router does not support MPLS .
>
> Hope to hear you soon.

I'm not sure I fully understand you.

You can run multiprotocol BGP between two PEs to exchange routes
between them however if the PEs don't support MPLS and you are trying
to create L2 and/or L3 VPNs you will be hard pushed to get any traffic
flowing :)

Normally MP-BGP would assign an MPLS label value and advertise the
prefix and label to the neighbouring PE. If your PEs don't support
MPLS I guess a label might not even be allocated by BGP so they might
not even advertise the prefix.


Cheers,
James.


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