PROTO for draft-ietf-trill-p2mp-bfd-05
(1) Type of RFC: Standards track as indicated on the title page. This document extends
and updates Draft Standard 7175 on TRILL support of BFD.
(2) Document Announcement:
Point to multipoint (P2MP) BFD is designed to verify multipoint
connectivity. This document specifies the support of P2MP BFD in
TRILL. Similar to TRILL point-to-point BFD, BFD Control packets in
TRILL P2MP BFD are transmitted using RBridge Channel message.
Working Group Summary:
WG has discussed this technology along with other TRILL extensions for the
last 3 years. Trade-offs were discussed at IETF meetings and on the mail list.
Final decision on trade-off received good WG consnesus.
No implementations of the protocol exist.
Huawei may implement this draft in the future, but
this depends on customer needs in various deployments
(data centers, campus networks, and others)
Document Shepherd: Sue Hares
Responsible Area Director: Alia Atlas
(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 IESG.
RTG-DIR REview - few nits need to be addressed.
See also review comments by Donald Eastlake at
that were resolved in version -05
and RTG review by Carlos Pignataro at
(4) Does the document Shepherd have any concerns about the depth or
breadth of the reviews that have been performed?
The draft has recevied good review in the meetings, in discussion with authors,
and on the list. The chair sends out specific questions with each TRILL WG last call.
TRILL participant commenton these questions.
The security considerations section indicates that a "future document will
provide for group keying". This document is draft-ietf-trill-group-keying-00.txt.
Since the TRILL progressing toward a hiatus and this future document
may not pass WG LC, this statement has been left as is. An RFC editor note
can link these two documents together if they are both approved, or
the authors indicated they would be glad to modify the document.
(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 took place.
Normal reviews, plus review by the BFD group is useful.
(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?
No special concerns. This document has gone through
several reviews. It is part of the extension to the TRILL
extensions for directory service and local link functions.
(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?
Yes, three authors:
(8) Has an IPR disclosure been filed that references this document?
If so, summarize any WG discussion and conclusion regarding the
(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?
There is clear WG consensus for this draft.
This document has cycled in the working group as the authors
and chair refined the document.
(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
(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 thorough.
(12) Describe how the document meets any required formal review
criteria, such as the MIB Doctor, media type, and URI type
No such formal review required.
(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
There are references to two BFD WG drafts and one TRILL draft as
listed below. These are expected to be advanced soon.
(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
This document updates RFC 7177 as specified in Section 3 and updates
RFC 7175 as specified in Section 4.
(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
This document only requires the allocation of a single code point, a
new RBridge Channel Protocol number, which is properly provided for in
the IANA Considerations Section.
(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
No new registries created.
(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 such automatic checks required.