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Pseudowire Control Word Negotiation Mechanism Analysis and Update

Pseudowire Control Word Negotiation Mechanism Analysis and Update. PWE3 IETF82. draft-ietf-pwe3-cbit-negotiation-02. Update. Version 00 and 01 contain two methods to do the Cbit re-negotiation, and issues remain: For “Label Request” Method: There is FEC update happened on PE2.

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Pseudowire Control Word Negotiation Mechanism Analysis and Update

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  1. Pseudowire Control Word Negotiation Mechanism Analysis and Update PWE3 IETF82 draft-ietf-pwe3-cbit-negotiation-02

  2. Update • Version 00 and 01 contain two methods to do the Cbit re-negotiation, and issues remain: • For “Label Request” Method: • There is FEC update happened on PE2. • For "Label Release“ Method: • Adding new error code, but lost backward compatibility. • Update from version 01 to 02, to work out a new way: • Solve the FEC update issue, and have backward compatibility.

  3. Control Word Re-Negotiation Label Map: Cbit=0 CW: PREFERRED CW: NOT-PREFERRED PW Negotiated Cbit=0 Label Map: Cbit=0 Configuration changed to CW: PREFERRED Label Withdraw Label Release New Reset Local Cbit Label Release Label Request Label Map: Cbit=1 PW Negotiated Cbit=1 Label Map: Cbit=1 3

  4. Next steps • Thanks for the valuable discussion from all authors and contributors. • Last call? Thank you

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