Hi, everyone.
I have a question for MSRP port binding.
“Must MSRP client bind its MSRP URI port?”
If then, it seems to be a problem in MSRP relay.
MSRP relay must act as both server and client.
In section [RFC 4976. 3. Protocol overview],
MSRP relay server ‘a.example.org’ uses MSRP URI ‘msrps://a.example.org:9000/kjfjan;tcp’
When MSRP relay server ‘a.example.org’ trys
do make a slow link after receiving a SEND request from Alice.
But the ‘a.example.org’ relay server already uses a port
9000 as server port for Alice.
How it can use the port 9000 as client port for MSRP relay server ‘b.example.net’
if client must bind
its client port?
Thanks…
Please refer below flow
and message.
------------------------------------------------------------------------------------------
Alice a.example.org b.example.net Bob
| | | |
|::::::::::::::::::::>| connection opened |<::::::::::::::::::::|
|--- AUTH ----------->| |<-- AUTH ------------|
|<-- 200 OK-----------| |--- 200 OK---------->|
| | | |
.... time passes ....
| | | |
|--- SEND ----------->| | |
|<-- 200 OK ----------|:::::::::::::::::::>| (slow link) |
| |--- SEND ---------->| |
| |<-- 200 OK ---------|--- SEND ----------->|
| | | ....>|
| | | ..>|
| | |<-- 200 OK ----------|
| | |<-- REPORT ----------|
| |<-- REPORT ---------| |
|<-- REPORT ----------| | |
| | | |
MSRP 6aef SEND
To-Path: msrps://a.example.org:9000/kjfjan;tcp \
msrps://b.example.net:9000/aeiug;tcp \
msrps://bob.example.net:8145/foo;tcp
From-Path: msrps://alice.example.org:7965/bar;tcp
Success-Report: yes
Byte-Range: 1-*/*
Message-ID: 87652
Content-Type: text/plain
Hi Bob, I'm about to send you file.mpeg
-------6aef$
------------------------------------------------------------------------------------------