Requirements%20for%20supporting%20Customer%20RSVP%20and%20RSVP-TE%20over%20a%20BGP/MPLS%20IP-VPN%20draft-ietf-l3vpn-e2e-rsvp-te-reqts-02.txt

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Requirements for supporting Customer RSVP and
RSVP-TE over a BGP/MPLS IP-VPNdraft-ietf-l3vpn-
e2e-rsvp-te-reqts-02.txt

• Kenji Kumaki KDDI RD Labs, Editor
• Raymond Zhang BT
• Yuji Kamite NTT Communications

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Major Changes from -01

• Clarified problem statement in Section 3.
• Last IETF, Dave asked a question about RSVP-TE
  over LDP.
• Clarified specific requirements for PCE features
  support in section 6.8.
• Specifically, a mechanism for dynamic PCE
  discovery

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Problem Statement

• C-TE LSP over LDP
• C-TE LSP over P-TE LSP
• Depending on the service level, service providers
  should be able to choose P-TE LSPs or non-TE LSPs
  in the backbone network. Actually, depending on a
  policy of service provider's network, all nodes
  are not necessarily ready to enable RSVP-TE.

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Problem Statement

• Service provider A needs all of the following
  items to provide a service. ? C-TE LSP over P-TE
  LSP
• C-RSVP path QoS guarantees.
• Fast recovery over BGP/MPLS IP-VPN to protect
  traffic for C-TE LSP against CE-PE link failure
  and PE node failure.
• Strict C-TE LSP bandwidth and QoS guarantees.
• Resource optimization for C-RSVP paths and C-TE
  LSPs.
• Service provider B needs some of them to provide
  a service. ? C-TE LSP over LDP
• All nodes are not necessarily ready to enable
  RSVP-TE in the backbone network. (In this case, a
  service provider doesnt expect FRR and bandwidth
  and QoS guarantees in the service providers
  backbone.)
• Fast recovery over BGP/MPLS IP-VPN to protect
  traffic for C-TE LSP against CE-PE link failure
  and PE node failure.
• Use of explicit routes

It depends on a service level and a policy of
service providers.
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Specific Requirements

• PCE features support for C-TE LSPs
• Originally, this model is similar to an
  inter-domain case.
• PCE architecture is applicable to this model.
• A mechanism for dynamic PCE discovery
• All PCEs are not necessarily discovered
  automatically and only specific PCEs that know
  VPN routes should be discovered automatically.

PE(PCE)
PE(PCE)
CE(PCC)
CE
BGP/MPLS VPNs
VPN1
VPN1
PE(PCE)
PE(PCE)
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Next Steps

• Will go to Last call?