1 / 6

Pseudowire Control Word Negotiation Mechanism Analysis and Update

Pseudowire Control Word Negotiation Mechanism Analysis and Update. PWE3 IETF80. draft-jin-pwe3-cbit-negotiation-04. Status. Will be adopted as a PWE3 WG. Several updates from 01 to 04. Background.

adolph
Download Presentation

Pseudowire Control Word Negotiation Mechanism Analysis and Update

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. Pseudowire Control Word Negotiation Mechanism Analysis and Update PWE3 IETF80 draft-jin-pwe3-cbit-negotiation-04

  2. Status • Will be adopted as a PWE3 WG. • Several updates from 01 to 04.

  3. Background. • The draft updates rfc 4447 Control Word negotiation, to re-enable CW after being negotiated as disabled.

  4. Proposed solution PW Negotiated Cbit=0 CW: NOT-PREFERRED CW: PREFERRED Configuration changed to Label Withdraw CW: PREFERRED Label Release PE-2 Reset C-Bit negotiation Label Map: Cbit = 1 PE-1 Reset C-Bit negotiation Label Withdraw Cbit =0 Label Map: Cbit=1 PW Re-Negotiated Cbit=1 4

  5. Proposed solution Summary • On CW configuration Change • Local PE sends a (1) label Withdraw, resets its C-Bit negotiation and sends (2) a label mapping with the new C-Bit setting to it’s neighbor. • Neighbor PE, once it sees the label withdraw, and if it has advertised a C-bit different than what it has configured, resets its C-Bit negotiation and sends (1) a label withdraw and (2) a label mapping with it’s Configured C-Bit setting. • C-Bit negotiation continue as per RFC 4447.

  6. Next steps • Update the draft with this proposed solution and publish as a WG draft. • Thanks Luca for the valuable comments. Thank you

More Related