Gen-ART Review of draft-ietf-l2tpext-circuit-status-extensions-04

I have been selected as the General Area Review Team (Gen-ART) reviewer
for this draft (for background on Gen-ART, please see
http://www.alvestrand.no/ietf/gen/art/gen-art-FAQ.html). 

Please resolve these comments along with any other Last Call comments
you may receive. 

Document: draft-ietf-l2tpext-circuit-status-extensions-04
Reviewer: Pete McCann
Review Date: 15 June 2009
IETF LC End Date: 16 June 2009
IESG Telechat date: unknown 

Summary: Basically ready, one minor question

Major issues: none

Minor issues:

Section 2:
   setting of in the
Did you mean:
   setting of the N bit in the
?

In deprecating this N bit, will there be compatibility problems if an
implementation sends ICRQ, ICRP, OCRQ, or OCRP with the N bit clear?
Is it possible that older implementations would treat this as an invalid
message?

Nits/editorial comments: none