Mandatory Use of Control Word for PWE3 Encapsulations

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Last updated 2010-10-18
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Of the many variations of PWE3 Encapsulations and Modes (e.g. Ethernet, Port Mode, VLAN Mode, etc), only five have the Control Word (CW) as being optional. As a result, this causes an issue with VCCV Control Channel selection. This draft endeavors to resolve the issue going forward by making the Control Word, and subsequently the CW- based VCCV Control Channel, mandatory for all PWE3 Encapsulations.


Nick Regno (
Thomas Nadeau (
Vishwas Manral (
David Ward (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)