Subject: [Simple] In context of MSRP; How to tell if incoming connection request is of type TLS or TCP?

From: Prasun Bheri <[email-masked]>
Date: Thu, 17 Jan 2013 13:45:52 +0530

Hello Group,

In regards to TLS over MSRP.

Scenario:
There are two sessions between  UE-A and UE-B, in which B chose to be
active endpoint in both the sessions (a=setup:active), of which one session
is over TLS and another is over TCP.

Two incoming connection requests will arrive at A.
What is the best approach for A to distinguish TLS request from TCP?

In case of SIP its easy as there are separate ports for TCP and TLS. so the
connection request will be identified based on the port upon which the
request arrived. But for MSRP rfc 4975 doesn't recommend a different port,
so both requests could arrive at same 2855 port.

Thanks & Regards,
Prasun Bheri