(1) What type of RFC is being requested (BCP, Proposed Standard,
Internet Standard, Informational, Experimental, or Historic)? Why
is this the proper type of RFC? Is this type of RFC indicated in the
title page header?
The MPLS working group request that:
MPLS-TP Applicability; Use Cases and Design
is published as an Informational RFC.
This documentdoes not specify a protocol but provides case studies
and network design considerations for Multiprotocol Label Switching
Transport Profile (MPLS-TP) and is thus intended to be published as
an informational RFC.
(2) The IESG approval announcement includes a Document Announcement
Write-Up. Please provide such a Document Announcement Write-Up. Recent
examples can be found in the "Action" announcements for approved
documents. The approval announcement contains the following sections:
This document provides applicability, use case studies and network
design considerations for Multiprotocol Label Switching Transport
In the recent years, MPLS-TP has emerged as the technology of choice
for the new generation of packet transport. Many service providers
(SPs) are working to replace the legacy transport technologies, e.g.
SONET/SDH, TDM, and ATM technologies, with MPLS-TP for packet
transport, in order to achieve higher efficiency, lower operational
cost, while maintaining transport characteristics.
The use cases for MPLS-TP include Metro Ethernet access and
aggregation, Mobile backhaul, and packet optical transport. The
design considerations discussed in this documents ranging from
operational experience; standards compliance; technology maturity;
end-to-end forwarding and OAM consistency; compatibility with
IP/MPLS networks; multi-vendor interoperability; and optimization
vs. simplicity design trade off discussion. The general design
principle is to provide reliable, manageable, and scalable transport
Working Group Summary
Was there anything in WG process that is worth noting? For
example, was there controversy about particular points or
were there decisions where the consensus was particularly
This document has a strong support in the working group
and has been well reviewed.
Are there existing implementations of the protocol? Have a
significant number of vendors indicated their plan to
implement the specification? Are there any reviewers that
merit special mention as having done a thorough review,
e.g., one that resulted in important changes or a
conclusion that the document had no substantive issues? If
there was a MIB Doctor, Media Type or other expert review,
what was its course (briefly)? In the case of a Media Type
review, on what date was the request posted?
This an informational document, it presents some use-cases
and provides design guidelines, but it is not possible to say that
there are implementations.
The document have had the review that is needed, the working
group last call was brought to the attention of SG15 in
Who is the Document Shepherd? Who is the Responsible Area
Loa Andersson is the document shepherd.
Adrian Farrel is/will be the responsible AD.
(3) Briefly describe the review of this document that was performed by
the Document Shepherd. If this version of the document is not ready
for publication, please explain why the document is being forwarded to
The document shepherd have reviewed the document several times,
e.g. when it was polled to become a wg document and at the wg last
call, at at least one time between these two wg wide reviews.
The document is ready for publication.
(4) Does the document Shepherd have any concerns about the depth or
breadth of the reviews that have been performed?
When the working group first requested that version -02 should be
published as an Informatinal RFC, the reviewing AD had seeral
comments. These comments has been discussed and an agreed
resolution has been reached and the dcoument updated.
The updated document has been through a 2nd working group last
call, the working group has confirmed its support for the
(5) Do portions of the document need review from a particular or from
broader perspective, e.g., security, operational complexity, AAA, DNS,
DHCP, XML, or internationalization? If so, describe the review that
(6) Describe any specific concerns or issues that the Document Shepherd
has with this document that the Responsible Area Director and/or the
IESG should be aware of? For example, perhaps he or she is uncomfortable
with certain parts of the document, or has concerns whether there really
is a need for it. In any event, if the WG has discussed those issues and
has indicated that it still wishes to advance the document, detail those
No such concerns!
(7) Has each author confirmed that any and all appropriate IPR
disclosures required for full conformance with the provisions of BCP 78
and BCP 79 have already been filed. If not, explain why.
There are no IPRs filed against this document.
Before the working group last call started the working group chairs
sent a mail to the working group and the authors, asking any members
of the working group whom were aware of IPRs to speak up and requiring the
authors either to indicate if they were aware of IPRs or say that they
(8) Has an IPR disclosure been filed that references this document?
If so, summarize any WG discussion and conclusion regarding the IPR
There are no IPR filed for this document.
(9) How solid is the WG consensus behind this document? Does it
represent the strong concurrence of a few individuals, with others
being silent, or does the WG as a whole understand and agree with it?
The working group is behind this document. It has been well discussed
and reviewed as part of the MPLS-TP discussion.
(10) Has anyone threatened an appeal or otherwise indicated extreme
discontent? If so, please summarise the areas of conflict in separate
email messages to the Responsible Area Director. (It should be in a
separate email because this questionnaire is publicly available.)
No such threats.
(11) Identify any ID nits the Document Shepherd has found in this
document. (See http://www.ietf.org/tools/idnits/ and the Internet-Drafts
Checklist). Boilerplate checks are not enough; this check needs to be
There are no nits against version -06 of the document.
(12) Describe how the document meets any required formal review
criteria, such as the MIB Doctor, media type, and URI type reviews.
There are no such formal review criteria.
(13) Have all references within this document been identified as
either normative or informative?
(14) Are there normative references to documents that are not ready for
advancement or are otherwise in an unclear state? If such normative
references exist, what is the plan for their completion?
No, all normative references are to existing RFCs.
(15) Are there downward normative references references (see RFC 3967)?
If so, list these downward references to support the Area Director in the
Last Call procedure.
No downward references.
(16) Will publication of this document change the status of any
existing RFCs? Are those RFCs listed on the title page header, listed
in the abstract, and discussed in the introduction? If the RFCs are not
listed in the Abstract and Introduction, explain why, and point to the
part of the document where the relationship of this document to the
other RFCs is discussed. If this information is not in the document,
explain why the WG considers it unnecessary.
No changes to existing RFCs.
(17) Describe the Document Shepherd's review of the IANA considerations
section, especially with regard to its consistency with the body of the
document. Confirm that all protocol extensions that the document makes
are associated with the appropriate reservations in IANA registries.
Confirm that any referenced IANA registries have been clearly
identified. Confirm that newly created IANA registries include a
detailed specification of the initial contents for the registry, that
allocations procedures for future registrations are defined, and a
reasonable name for the new registry has been suggested (see RFC 5226).
No request for IANA allocations.
(18) List any new IANA registries that require Expert Review for future
allocations. Provide any public guidance that the IESG would find
useful in selecting the IANA Experts for these new registries.
No request for IANA allocations.
(19) Describe reviews and automated checks performed by the Document
Shepherd to validate sections of the document written in a formal
language, such as XML code, BNF rules, MIB definitions, etc.
No formal language.