Open invitation to BGP/PB L3VPN & BGP/PBB L3VPN discussion thread

["Peter Kao" <[e-mail]>]

Dear Colleagues, L3VPN working group,

I have recently submitted three drafts for standards track consideration; 

http://tools.ietf.org/html/draft-kao-pb-l3vpn-00 
This document describes a method by which a Service Provider may use an 
IEEE 802.1ad PBN (Provider Bridge Network) to provide IP Virtual Private 
Network Service for its customers.  This method extends the BGP/MPLS IP 
VPN service to allow IP VPN service to be offered using a PBN instead.  

http://tools.ietf.org/html/draft-kao-pbb-l3vpn-00 
This document describes a method by which a Service Provider may use an 
IEEE 802.1ah PBBN (Provider Backbone Bridge Network) to provide IP 
Virtual Private Network Service for its customers.  
This method extends the BGP/MPLS IP VPN service to allow IP VPN service 
to be offered using a PBN instead.  

http://tools.ietf.org/html/draft-kao-path-binding-bgp4-00 
When BGP is used to distribute a route, it can also be used to
distribute a Link Layer PATH_NEXT_HOP binding which is mapped to that   
route such that packets to that network route can be switched directly 
across an Ethernet switched network.


The motivation for using PB/PBB rather than an MPLS core for IP/VPN is as
follows - As flat mobile networks (4G/LTE, mobile WiMAX, HSPA+ flat, and
UMB) emerge, IP routing is being pushed more and more from the Metro Core
towards the Metro Access and Aggregation networks to provide support for
single IP-RAN and any-to-any IP connectivity between base stations. The
current, existing Metro Ethernet Backhaul infrastructure in place based on
PB can't support routed flat mobile network with any-to-any IP connectivity,
it just can't do routing. As such, IPMPLSForum20.0.0 proposed an all MPLS
access/aggregation/core network solution to support flat mobile networks
with L3VPN capability.

The submitted drafts propose a way to enable existing and new Metro PB
switched access/aggregation networks with IETF RFC4364 L3VPN capability for
the emerging flat mobile networks and converged Metro transport with L1, L2,
and L3 support.  

Cordially, I would like to invite you to an open discussion on the mailing
list and give all of us a precious opportunity to hear your feedback and
thoughts.

Thx & Regards,
Ares, P., Kao
[e-mail]