Mary Barnes's comment 3

The comment is:

"- Section 3.3, 2nd paragraph after the capability bullet list, next to
last sentence.  There is at least an article missing from this
sentence and it reads rather awkwardly. Perhaps changing to something
like:
OLD:
   If there is a failure on
   the reverse path caused by topology change since the request was
   sent, this will be handled by the end-to-end retransmission of the
   response as described in Section 6.2.1.
NEW:
   Note that a failure on
   the reverse path caused by a topology change after the request was
   sent, will be handled by the end-to-end retransmission of the
   response as described in Section 6.2.1."

- Change as suggested, but without the comma.