Liaison statement
LS53 - Review of the MPLS-TP Requirements draft

Submission date 2009-06-04
From ITU-T SG 15 (Greg Jones)
To IETF MEAD team (
Response contact,,
Technical contact,,,
Purpose For information
Attachments LS53 - Review of the MPLS-TP Requirements draft - pdf
Thank you for providing the MPLS-TP requirements
(draft-ietf-mpls-tp-requirements-08.txt) for our review.  We support the
approval of this draft provided that you implement the changes listed below:
1	 Requirement 59: Item c should be moved from requirement 59 to a separate
requirement since it is not part of the SLA
2	 Requirement 70:  Should be moved to the restoration section (2.8.2).
Currently, it is under the protection section.
3	 Requirement 66 D: The term "backtracking" should be defined, this should be
included in the rosetta draft. 
4	Ring protection section : 
The paragraph below requirement e, replace the words in "this section" with
“section" and replace the words "expressed above" by "requirements
expressed in sections 2.8 up to section"
5	 Requirement 107B: Replace the current text with following:
It SHOULD protect against multiple failures