Date: Wed, 12 Sep 2001 11:51:38 -0700
From: "Burdett, David" <>
The spec already says that an error should be reported if the To MSH
receives a message where Time To Live has passed. It doesn't though say that
the message must be ignored. This is a small useful clarification.
It's not clear to me that an error should be reported in this case.
It must means that somewhere inside the Internet, a copy of this
message was passed along after a long delay. This is inevitable,
particularly noting that messages can disappear into the Internet and
come back a *long* time later. We are already assuming that this can
happen; it's part of our failure model. So the fact that a late
straggling message came in is not evidence that anything is incorrect.
