[c-nsp] IS-IS as PE-CE protocol

Nathan Lannine nathan.lannine at gmail.com
Thu Mar 21 09:11:14 EDT 2019


On Thu, Mar 21, 2019 at 9:02 AM Aaron Gould <aaron1 at gvtc.com> wrote:

> Which reminds me... I recall if pe-ce is bgp, then redis into l3vpn is
> natural and automatic.... true ?
>
> -Aaron
>
>
As an implementer of MPLS/L3VPN in the enterprise, this is very interesting
to me because I am all IGP internally.  I sort of assumed that in the
provider space that L3VPNs would be accomplished the same way, with an IGP
as PE-CE protocol for L3VPN, but here we are.  So, in the case of BGP as
PE-CE protocol and a small client AS, do you all in the provider space
require multiple private ASNs per VPN?  I mean (blatant free training
request here) how does this get handled by the VPN customer?

Just navel gazing here, but I am wondering if there would be any benefit to
me running BGP as my own PE-CE protocol.

Thank you,
Nathan


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