Last Call Review of draft-ietf-pals-vpls-pim-snooping-04
review-ietf-pals-vpls-pim-snooping-04-rtgdir-lc-jia-2017-03-12-00

Hello,

I have been selected as the Routing Directorate reviewer for this draft. The
Routing Directorate seeks to review all routing or routing-related drafts as
they pass through IETF last call and IESG review, and sometimes on special
request. The purpose of the review is to provide assistance to the Routing ADs.
For more information about the Routing Directorate, please see
?http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir

Although these comments are primarily for the use of the Routing ADs, it would
be helpful if you could consider them along with any other IETF Last Call
comments that you receive, and strive to resolve them through discussion or by
updating the draft.

Document:draft-ietf-pals-vpls-pim-snooping-04.txt
Reviewer: Jia He
Review Date: 2017-03-10
IETF LC End Date: -
Intended Status: Informational

Summary:
This document is basically well written, the nits listed below are tiny which
in my opinion should not block further procedures.

Comments:
I found the examples in the appendix helped a lot to understand the procedures
of PIM snooping and PIM proxying for VPLS as described in this draft.

Major Issues:
No major issues found.

Minor Issues:
1) Section 1.1, beginning of Page 5,

"Notice that traffic is always sent on ports that have point-to-point
   connections to routers ot that are attached to a LAN on which there
   is a router, even those on which there are no snooped group
   memberships, because IGMP snooping alone can not determine if there
   are interested receivers beyond those routers."

I found this sentence difficult to read. It is recommended to reorganize the
sentence.

Nits:
1) Section 2.2.1, Page 7, s/MUSTforward/MUST forward
2) Sections 2.6.3 & 2.6.4, Figures 1 &2, add (PP) as the abbreviation after
Prune-Pend  similar to NoInfo r(NI) and Join (J) 3) Appendix B, Page 31, add
"Figure 3" before the title "An example Network for Triggering Assert"

B.R.
Jia