> The obvious difference between 6PE and 6VPE is as follow:
> 6PE will just establish IPv6 neighbor between PE router?
> 6VPE will establish VPNv6 neighbor between PE router, then exchange the VPN
> routes between 6VPE router?
yes.
6PE enables to carry IPv6 global routes over an MPLS cloud, using IPv6+label
BGP address family.
6VPE does the same for IPv6 VPN customer routes, using vpnv6 BGP address family.
All iBGP sessions between the 6PE or 6VPE are actually carried over IPv4
transport, so intermediate P routers are not aware of any of this and can be
IPv4 only.
that's how I would desribe it.
oli
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