Liaison statement
Update on MPLS-TP protection work in MPLS and PALS working groups

State Posted
Posted Date 2016-05-17
From Groups mpls, pals
From Contact Scott Mansfield
To Group ITU-T-SG-15
To Contacts tsbsg15@itu.int
tom.huber@coriant.com
lihan@chinamobile.com
CcAlvaro Retana
Deborah Brungard
itu-t-liaison@iab.org
Multiprotocol Label Switching Discussion List
Stewart Bryant
Scott Mansfield
George Swallow
Pseudowire And LDP-enabled Services Discussion List
John Drake
Alia Atlas
Andrew Malis
Loa Andersson
Ross Callon
Response Contact Loa Andersson
George Swallow
Ross Callon
Andrew Malis
Stewart Bryant
Technical Contact Scott Mansfield
Purpose In response
Attachments (None)
Liaisons referred by this one LS on work on MPLS-TP protection
Body
The MPLS and PALS Working Groups are pleased to hear about the continued
progress on the MPLS Transport Profile and continued alignment with IETF
RFCs.

We confirm that "MPLS-TP Shared-Ring protection (MSRP) mechanism for ring
topology” 
(https://datatracker.ietf.org/doc/draft-ietf-mpls-tp-shared-ring-protection)
is progressing in the MPLS WG, and invite comments on this draft to the MPLS
WG mailing list (mpls@ietf.org). In addition, we are also progressing a draft
on "Resilient MPLS Rings" 
(https://datatracker.ietf.org/doc/draft-ietf-mpls-rmr).

The PALS WG currently has two drafts in progress that are relevant to MPLS-TP
pseudowire linear protection:

https://datatracker.ietf.org/doc/draft-ietf-pals-mpls-tp-dual-homing-coordination
https://datatracker.ietf.org/doc/draft-ietf-pals-mpls-tp-dual-homing-protection

These drafts provide a fast protection mechanism for MPLS-TP PWs to protect
dual-homed CEs against failures of their attachment circuits or PE routers.
The drafts are ongoing work and were very recently updated. 
We hope to complete work on these drafts by the upcoming IETF meeting in
Berlin on July 17-22, 2016, and would very much appreciate SG15’s review and
comments to the pals@ietf.org email list.

We are also pleased to hear about the second amendment to Recommendation ITU-T
G.8131/Y.1382, "Linear protection switching for MPLS transport profile."

In addition to maintaining communication with liaisons, please engage on the
MPLS WG mailing list (mpls@ietf.org) and PALS WG mailing list
(pals@ietf.org) which provide a more timely view of the state of the work.

MPLS and PALS wg co-chairs