1 / 8

LDP extensions for Explicit Pseudowire to transport LSP mapping

LDP extensions for Explicit Pseudowire to transport LSP mapping. draft-cao-pwe3-mpls-tp-pw-over-bidir-lsp-04.txt Mach Chen (mach.chen@huawei.com) Wei Cao ( wayne.caowei@huawei.com ) Attila Takacs (Attila.Takacs@ericsson.com) Ping Pan (ppan@infinera.com).

susan
Download Presentation

LDP extensions for Explicit Pseudowire to transport LSP mapping

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LDP extensions for Explicit Pseudowire to transport LSP mapping draft-cao-pwe3-mpls-tp-pw-over-bidir-lsp-04.txt Mach Chen (mach.chen@huawei.com) Wei Cao (wayne.caowei@huawei.com) Attila Takacs (Attila.Takacs@ericsson.com) Ping Pan (ppan@infinera.com) IETF 82th PWE3 WG Taipei

  2. Problem Statement • Currently, • A PW uses two unidirectional LDP/RSVP-TE LSPs as PSN Tunnel, • PEs select and bind to PSN Tunnel locally, with no control plane support • New service requirements: • mapping bi-directional circuits to LSPs with same route(e.g., co-routed bi-directional LSP) PWs PE1 P1 P2 PE2 ACs ACs Co-routed Bidirectional LSP ACs ACs PWs Need to have explicit control over PW-LSP binding at control-plane IETF 82th PWE3 WG Taipei

  3. Solution Overview (Single-Hop)(Strict Mode) Setup PW1 using PSN1; Make sure PW2 using PSN 1 OK or, NO! Don’t want to use PSN1 PE1 P1 P2 PE2 ACs ACs PW1 PSN 1 PW2 PSN 2 ACs ACs IETF 82th PWE3 WG Taipei

  4. Solution Overview (Single-Hop)(Congruent Mode) Setup PW1 using PSN1; Make sure PW2 using a PSN with the same route as PSN1 OK PE1 P1 P2 PE2 ACs ACs PW1 PSN 1 PW2 PSN 2 ACs ACs IETF 82th PWE3 WG Taipei

  5. Solution Overview (Multi-Segment)(Strict Mode) (1) Setup PW1 using PSN1; PW2 needs to be PSN 1 (2) Setup PW3 using PSN3; PW4 needs to be PSN 3 (4) OK (3) OK PE1 PE3 PE2 ACs ACs PW1 PW3 PSN 3 PSN 1 PW2 PW4 PSN 4 PSN 2 ACs ACs IETF 82th PWE3 WG Taipei

  6. Protocol Extension • PSN Tunnel Binding TLV • IPv4 PSN Tunnel sub-TLV format IETF 82th PWE3 WG Taipei

  7. Changes since last version • Editorial changes • Terminology clarifications IETF 82th PWE3 WG Taipei

  8. Next steps • Comments? • WG document? IETF 82th PWE3 WG Taipei

More Related