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Liaison Statement: Liaison on creating a globally unique ICC for MPLS-TP (ref # 057.01)

Submission Date: 2011-07-28
From: Multiprotocol Label Switching (Loa Andersson)
To: ITU-T SG 15 (greg.jones@itu.int)
Cc:yoichi.maeda@ttc.or.jp
greg.jones@itu.int
loa.andersson@ericsson.com
ghani.abbas@ericsson.com
hhelvoort@huawei.com
malcolm.betts@zte.com.cn
kam.lam@alcatel-lucent.com
tsbsg15@itu.int
tsbg2@itu.int
ahmpls-tp@lists.itu.int
adrian@olddog.co.uk
rcallon@juniper.net
lear@cisco.com
stbryant@cisco.com
mpls@ietf.org
swallow@cisco.com
elisa.bellagamba@ericsson.com
Response Contact: loa.andersson@ericsson.com
Technical Contact: loa.andersson@ericsson.com
swallow@cisco.com
rcallon@juniper.net
Purpose: For action
Deadline: 2011-09-30 Action Taken
Attachments: (none)
Body:
ITU-T SG 15 for Action

ITU-T SG2 for Information


As we informed ITU-T in a recent liaison (ref # 056.01) the MPLS
working group 
as part of MPLS-TP adopted draft-ietf-mpls-tp-itu-t-identifiers-00 as a
working 
group document.

The purpose of this document is to specify how MPLS-TP objects can be
identified using identifiers based on ITU-T Carrier Codes (ICCs). The
intention is to advance this document for publication as an RFC that
can be referenced from ITU-T MPLS-TP Recommendations.

In the course of this work we have found that we need globally unique
identifiers and we understand that the ICC is not globally unique.

Can you please confirm to us that ICCs are guaranteed unique within a
country, 
and that combining an ICC with a country code is an appropriate way to
use 
produce a globally unique identifier. Please also indicate to us the
ITU-T 
Recommendations that we can use as normative references in support of
this 
approach.


Loa Andersson
George Swallow
Ross Callon


MPLS Working Group co-chairs