November 2006 67th IETF@San Diego

Requirements for delivering MPLS services over L3VPN

draft-kumaki-l3VPN-e2e-mpls-rsvp-te-reqts-02.txt

Kenji Kumaki KDDI, Editor

Raymond Zhang BT

November 2006 67th IETF@San Diego

Summary of this draftSummary of this draft

• This draft is to:– Clarify issues for an e2e MPLS TE LSP over

BGP/MPLS IP-VPNs– Describe the reference model, application

scenarios and specific requirements for these LSPs

November 2006 67th IETF@San Diego

Reference modelReference model

Service Provider’s network

Customer’s or

another SP’s network

Customer’s or

another SP’s network

P-TE LSPs

Vrf instances

C-TE LSPs

CE

CE

CC

CE

CEPE

PE

PE

PE

P P

November 2006 67th IETF@San Diego

Application Scenario(1)Application Scenario(1)

• The PE should choose an appropriate P-TE LSP based on local policy.– Preemption priority

• Voice : priority 0

• The P-TE LSP head-end should control the bandwidth of C-TE LSP.• DS-TE support for C-TE LSPs and P-TE LSPs• Fast protection between CE1 and CE3• CE1 and CE3 may work as a PCC and PEs may work as a PCE.

SP’s network

CE1

PE

PEPE

PE

CE2

CE3Customer’s site

Customer’s site

Customer’s site

P

P

P

P

SIP proxy server

User agent client

User agent server

Primary LSPPrimary LSP

Backup LSPBackup LSP

Priority 0,bandwidth 1M Priority 0,bandwidth 1G

November 2006 67th IETF@San Diego

Application Scenario(2)Application Scenario(2)

SP A network

CE

PE

PEPE

PE

CE

CESP B network

SP B network

SP B network

C0

C1

C2

P

P

P

P

Priority 0,bandwidth 1G Priority 1,bandwidth 2G

Priority 0,bandwidth 100M

• The PE should choose an appropriate P-TE LSP based on local policy.– Preemption priority

• Priority 0 : voice • Priority 1 : video and television

• The P-TE LSP head-end should control the bandwidth of C-TE LSP.• Fast Protection between CEs (voice)• Load balancing of traffic across primary and secondary LSP to minimize the traffic disruption in case of a link or a

PE failure (video and television)• DS-TE support for C-TE LSPs and P-TE LSPs• CEs may work as a PCC and PEs may work as a PCE.

Priority 1,bandwidth 200M

Primary LSPPrimary LSP

Secondary LSPSecondary LSPBackup LSPBackup LSP

November 2006 67th IETF@San Diego

Major Changes from -01

• Added two Application Scenarios in Section 5– Enterprise case– Service Provider case

• Added an Application Scenario in Appendix A– RSVP Aggregation over MPLS TE Tunnels

November 2006 67th IETF@San Diego

Remaining IssuesRemaining Issues

• Any other specific requirements?

November 2006 67th IETF@San Diego

Next ActionsNext Actions

• Need more comments and feedback from WG• Work with other WGs?• Request WG to accept this I-D as a WG document