CORBA35 — Processing of NegotiateSession messages at various stages of connection set

PROBLEM:
The BiDir GIOP Document discusses three stages of connection setup, but it is unclear when each stage begins and when it ends. It is also unclear what NegotiateSession or Firewall activity can take place in each stage and what the order of processing may be.

RECOMMENDATION:
Rewrite the relevant portions of the document to specify the following (excerpted without edit from Brian Niebuhr's discussion of NegotiateSession contexts and the stages of setup):

"...during connection setup, only firewall contexts can be in the negotiate session message, NOTHING ELSE. After the connection is setup, there is a period before the first request or locate request where we can do session setup items. I think that in that period, only Bidir contexts can be sent, NOTHING ELSE. The first request or locate request indicates the connection_established period. Again, during that period I think only the Bidir contexts should be legal. This makes things very simple. There are no conflicts between firewall and bidir, and nothing else can go in a negotiate session message."