Jayanth,
If OPES1 knows it is talking to OPES2, and *not* the ultimate
client of the session, then there is * no* problem.
This indeed is my understanding of the scenario - the session from
OPES1 would be properly terminated at OPES2, i.e. OPES1 is aware that
it's talking to OPES2.
However, we recently had discussions whether OPES devices should be in
the data path for streaming media, or whether it would be preferable
to just have them in the control path in this case (see discussion at
the OPES Workshop in June this year, minutes are at
http://www.ietf-opes.org/).
-Markus