Seamless MPLS draft-leymann-mpls-seamless-mpls-01.txt

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Seamless MPLSdraft-leymann-mpls-seamless-mpls-01.
txt

• Nicolai Leymann, Thomas Beckhaus (Deutsche
  Telekom)
• Bruno Decraene (France Telecom)
• Dirk Steinberg (Steinberg Consulting)
• 77th IETF, Anaheim, California

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Structure (and Agenda)draft-leymann-seamless-mpls
-01

• Motivation
• Use Cases
• Architecture
• Deployment Scenarios
• Moving Forward

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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.

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Use Cases
Description of general use cases, which has to be
realized by end to end MPLS platform.
Use Case 1
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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
AGS
ISIS Level 1
DSLAM
DSLAM
ISIS Level 1
ISIS Level 2
Label Distribution
Labeled BGP
LDPDownstream on Demand
LDP DoD
LDP
1.000
10.000
100.000
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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

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Thanks for the Contribution of

• Clarence Filsfils (Cisco)
• Kireeti Kompella (Juniper)
• Wim Henderickx (Alcatel)