1. Seamless MPLS draft-leymann-mpls-seamless-mpls-01.txt
Nicolai Leymann, Thomas Beckhaus (Deutsche Telekom)
Bruno Decraene (France Telecom)
Dirk Steinberg (Steinberg Consulting)
77th IETF, Anaheim, California

2. Structure (and Agenda) draft-leymann-seamless-mpls-01
Motivation
Use Cases
Architecture
Deployment Scenarios
Moving Forward

3. Motivation
MPLS is a mature technology, deployed for over 10 years in backbone networks world wide
stable, well known and flexible
MPLS already moved from typical backbone deployments towards aggregation networks, e.g. many metro networks are based on MPLS technology delivering Ethernet based services
Nevertheless, even using the same technology very often the different part of the network are not part of a common MPLS domain
Some SP wish to integrate Access, Aggregation and Backbone into a single MPLS domain
Building a very huge seamless MPLS platform, needs to make some important design decisions in using the well established protocols.
Multiple options are possible. It would be easier for the whole industry if we collaborate to select a single preferred solution, to be implemented, scaled for and deployed.
Especially for access nodes which may not (want to) implement all the possible capabilities of the whole MPLS feature set
This should be done by this draft. This draft does not change any existing protocol.

4. Use Cases
Description of general use cases, which has to be realized by end to end MPLS platform.
Use Case #1
Redundancy in the access
Redundancy in the access
PW for Business P2P Service
Core Network
AGN
ABR
AGN AN AN
PW towards SC for RC
Service Creation for Residential Customers

5. Architecture/ Deployment Scenarios
Section „Architecture” should describe the general topics. Section DS describes special network implementations. As Albert Einstein, we have started with the special case.
Labeled BGP
static
Routing
static default
NH self
NH unchanged
Seamless MPLS
AGS
ABR
ABR
ISIS Level 1
AGS
DSLAM
DSLAM
ISIS Level 1
ISIS Level 2
Label Distribution
Labeled BGP
LDP Downstream on Demand
LDP DoD
LDP
1.000
10.000

6. Moving Forward
Ask for feedback and discussion on the MPLS Mailing List
Update (-02) planned for IETF78
Open
Multicast for Seamless MPLS
Security Considerations
Architecture section …

7. Thanks for the Contribution of
Clarence Filsfils (Cisco)
Kireeti Kompella (Juniper)
Wim Henderickx (Alcatel)