Minutes for MPLS at IETF-92
minutes-92-mpls-1

MPLS Meeting notes for 24 and 27 March, IETF92

Materials are available at the following links:
Agenda
draft-fang-mpls-hsdn-for-hsdc
draft-ietf-mpls-spring-entropy-label
draft-kompella-mpls-rsvp-ecmp
draft-zheng-mpls-lsp-ping-yang-cfg-old
draft-chandra-mpls-enhanced-frr-bypass
draft-cheng-mpls-tp-shared-ring-protection
draft-dai-mpls-rsvp-te-mbb-label-reuse
draft-ietf-mpls-lsp-ping-relay-reply
draft-kompella-mpls-larp
draft-kompella-mpls-rmr
draft-mirsky-mpls-bfd-directed
draft-mirsky-mpls-residence-time
draft-openconfig-mpls-consolidated-model
draft-saad-teas-yang-te-rsvp
draft-tiruveedhula-mpls-mldp-mib
draft-mtaillon-rsvpte-summary-frr-00
IETF92_MPLS_WG_Status

Agenda:

Administrative (agenda bashing, WG status)
http://tools.ietf.org/html/draft-kini-mpls-spring-entropy-label
http://tools.ietf.org/html/draft-tiruveedhula-mpls-mldp-mib
http://tools.ietf.org/html/draft-ietf-mpls-lsp-ping-relay-reply
http://tools.ietf.org/html/draft-kompella-mpls-rsvp-ecmp
http://tools.ietf.org/html/draft-kompella-mpls-larp
http://tools.ietf.org/html/draft-kompella-mpls-rmr
http://tools.ietf.org/html/draft-cheng-mpls-tp-shared-ring-protection
http://tools.ietf.org/html/draft-mirsky-mpls-bfd-directed
http://tools.ietf.org/html/draft-mirsky-mpls-residence-time

Wednesday's minutes:
Sriganesh’s presentation on Spring Entropy Labels:
- No comments or questions.

Kishore’s presentation on P2MP and MP2MP LSP MIB:
- No comments or questions(?)

George Swallow’s presentation on LSP Ping relay reply:
- No comments or questions.

Kireeti’s presentation on Multi-path Label Switched Paths Signaled Using
RSVP-TE: - Kireeti asked for WG adoption and early IANA code point allocations.
- Himanshu Shah (Ciena) asked if you can do asymmetric bandwidth distribution.
- Kireeti said that you can do weighted distribution. There is neither an
equal-cost nor an equal-distribution requirement. - George had a rapid fire
conversation with Kireeti that I did not capture any of. - Eric Osborne asked a
question (I didn’t get what the question was). - Lou Berger asked for the
format of the association object to be written down. - Loa asked for
improvements in the content of the IANA Considerations before making a request
for early allocations.

Kireeti’s presentation on Labeled ARP:
- Kireeti asked for comments on the list, and adoption by the WG.
- Himanshu asked why this is required.
- Kireeti said that it is useful as a proxy ARP mechanism.

Kireeti’s presentation on resilient MPLS Rings:
- Greg Mirsky asked a question about timers – what would be the defaults and
ranges? - Greg was asked to wait until Kireeti had gotten further into his
presentation. - The question did not get answered, but – because of time
constraints – needs to be taken to the list. - George asked if you can break up
the bundles talked about in the draft. - Kireeti said that you can. - Greg
Mirsky asked questions on ring interconnectivity, which Kireeti answered. - The
answer was that nodes advertise ring ID on particular links so this is a link
property.  This should be clarified in the next version. - George asked a
question about (?) that Kireeti said would be answered on the next slide. -
Greg asked a question about manual switch-over – is it in the draft? - Kireeti
said that specific support details (Lock/Unlock controls, etc.) are not in the
current draft and will be in future work. - Ross Callon asked for a
clarification of the meaning of maximally connected rings. - Stewart Bryant
asked how you can distinguish clockwise and “anti-clockwise” directions on the
ring.  Kireeti said that it is explained in the draft. - Eric Osborne observed
that there is some history of ring work in MPLS. - (?) from Huawei asked a
couple of questions. - Kireeti answered one question by saying that irregular
rings require the same sort of configuration information. - Kireeti explained
the motivation for using RSVP-TE. - Kireeti punted on the MRT question, due to
time limits. - Li Weng (Comcast) asked how you would protect a ring under
specific failure scenarios. - This discussion would need to be continued on the
list. - Stewart asked how this proposal would work if one or more parts of a
ring failed to come up. - Further discussion will need to be taken to the list.

Liang Geng’s (China Mobile) presentation on MSRP:
- Weiqiang asked for feedback from the WG and to determine if the draft might
be ready for adoption. - Kireeti and George asked questions about where on a
ring the decision is made for traffic exiting the ring. - Shahram Davari
answered. - Eric Osborne said that this draft needs some discussion as to why
the existing RFC(s) are inadequate. - Loa asked if this observation applies to
both this draft and Kireeti’s draft. - Eric said that – in his opinion –
Kireeti’s draft already provides enough info to distinguish its applicability.

Greg Mirsky’s presentation on Directed BFD Return Path status:
- No comments or questions.

Greg Mirsky’s presentation on Residence Time Measurement:
- Shahram Davari asked why the format in the draft was used.  It seems to be
more than is needed. - Greg said that we chose to use the same format as was
used in IEEE 1588. - Shahram asked if the draft allows for further extensions,
giving an example. - Greg said that additional sub-TLVs could be defined.

Friday's minutes:
Tarek's presentation on MPLS RSVP and TE related Yang actvites
- No comments or questions.

Kamran's presentation on MPLS LDP related YANG model
- No comments or questions.

Greg's presentatio on draft-zheng-mpls-lsp-ping-yang-cfg
- No comments or questions.

Ina's OC-MPLS YANG model draft-openconfig-mpls-consolidated-model

Luang's presentation on draft-fang-mpls-hsdn-for-hsdc
- No comments recorded.

Stewart's presentation on draft-bryant-mpls-flow-ident
- No comments recorded.

Stewart's presentation on idraft-bryant-mpls-sfl-control
- No comments recorded.

Ron's presentation on draft-bonica-mpls-self-ping
- No comments recorded.

Tarek's presetnation on draft-mtaillon-mpls-summary-frr-rsvpte
- Lou aksed why not use RSVP message bundles
- Tarek answered, still with message bundles, for 1000's of states, it's likely
you'll need to send 100's of messages and the receiver will parse and process
per message

Chandra's presentation on draft-chandra-mpls-enhanced-frr-bypass
- No comments or questions.

Minjie's presentaiton on draft-dai-mpls-rsvp-te-mbb-label-reuse-00
- No comments or questions.