Re: [trill] AD review of draft-ietf-trill-p2mp-bfd-06

"Zhangmingui (Martin)" <> Wed, 27 December 2017 01:32 UTC

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From: "Zhangmingui (Martin)" <>
To: Alia Atlas <>, "" <>, "" <>
Thread-Topic: AD review of draft-ietf-trill-p2mp-bfd-06
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Date: Wed, 27 Dec 2017 01:32:05 +0000
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Subject: Re: [trill] AD review of draft-ietf-trill-p2mp-bfd-06
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Hi Alia,

Your review is much appreciated.

We’ve made the draft-ietf-trill-resilient-trees-08 to be a informative reference. The suggested improvement is sensible. The draft has been updated accordingly.

The 07 version has been uploaded.


From: Alia Atlas []
Sent: Tuesday, December 19, 2017 5:47 AM
Subject: AD review of draft-ietf-trill-p2mp-bfd-06

As is customary, I have done my AD review of draft-ietf-trill-p2mp-bfd-06. I would first like to thank the authors - Mingui, Santosh, and Vengada - as well as the WG for their work on this document.

My primary concern is that this document currently has a normative dependency on draft-ietf-trill-resilient-trees-08.  I do not understand why.  I can certainly see it being useful as an informative reference for how p2mp BFD might be useful in a TRILL network - but I don't see a need to understand or implement that draft to support this technology.  Text in this draft (e.g. "If the head is keeping track of some or all of the tails [I-D.ietf-trill-resilient-trees], it has a session of type MultipointClient per tail that it cares about [I-D.ietf-bfd-multipoint-active-tail].") could use improvement - such as "An example use is when a multicast tree root needs to keep track of all the receivers as in [I-D.ietf-trill-resilient-trees]; this can be done by maintaining a session of type MultipointClient per receiver that is of interest, as described in [I-D.ietf-bfd-multipoint-active-tail]."

I am going to request IETF Last Call for this draft - with it being extra long due to the holidays - and expect an update from the authors.