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Liaison statement
Response to Your Liaison on T-MPLS Ring Protection

State Posted
Submitted Date 2008-01-29
From Group ccamp
From Contact Adrian Farrel
To Group ITU-T-SG-15-Q9
To Contacts Greg Jones <>
Cc Stephen Trowbridge <>
Ghani Abbas <>
Ross Callon <>
Dave Ward <>
Scott Bradner <> <>
Response Contact Adrian Farrel <>
Deborah Brungard <>
Technical Contact Adrian Farrel <>
Deborah Brungard <>
Purpose In response
Attachments (None)
Thank you for your liaison from your Madeira interim meeting on T-MPLS Ring
Protection, and for taking the time to keep us informed.

At the moment, it appears that your work is limited to the MPLS forwarding
plane with control from the Management Plane with coordination with MPLS OAM.
As such, this work falls within the remit of the IETF's MPLS and PWE3 working
groups. You will also be aware that the IAB has set up a design team to address
issues in preparation of the potential cooperation between IETF and ITU-T on
T-MPLS; we trust that you have appropriately consulted this team in keeping
with the spirit of cooperation between the ITU-T and the IETF.

At such time as work within the ITU-T on T-MPLS ring protection (or indeed on
any aspect of T-MPLS) extends to requirements or solutions for a control plane,
we request that you communicate with us early in the process so that we may
ensure that the industry arrives at a single and fully compatible solution.

Best regards,
Adrian Farrel and Deborah Brungard
IETF CCAMP Working Group Co-Chairs