[c-nsp] VPNv4 - Multiple eBGP (CE->PE; CE->CE multihop) - Validation

[Anthony D Cennami]

I've done some research which leads me to believe that this configuration
would work as predicted, but I would just like to verify and ensure I'm
not missing something ghastly here.

I have a multisite, provider managed VPNv4 MPLS setup.  Client site has
non-MPLS enabled CE devices speaking BGP to providers MPLS PE.

For a variety of reasons I would prefer not to distribute full CE routes
into the PE BGP table, but instead, establish eBGP relationships directly
between CE-CE.

Setup would look something like the following:

CE->PE ---- PE->CE eBGP to VPN provider.  Filtered announcement,
advertising only Lo0 of each CE device to the PE/provider.

CE->CE  eBGP multi-hop via Lo0 advertising CE routes between each CE peer.

All relationships are eBGP; Client sites #1 and #2 use different AS.

Thus, CE routes would be "invisible" to provider/backbone, instead, only
CE routes would be visible, allowing eBGP multihop relationship across the
network.

If anybody has similar experience or applicable input on this type of
setup I would love to hear it.

Thanks,

Anthony
-- 
Anthony D Cennami
Managing Partner
neuPATH, LLC
p: (212) 380-1891 x 706
f: (212) 380-1891
acennami at neupath.com