[e2e] signaling performance on TCP

[weigengyu]

Hi, 

Can anyone give an answer to my question?

1. SIP will be the signaling protocol for IMS in 3GPP,and SIP can be over TCP, UDP, or SCTP;
2. For SIP over TCP as signaling transfer, are there any analysis model for the performance evaluation?
3. Somebody told me that there is no problem if you allocate enough bandwidth to signaling channel.
   (the enough bandwidth in engineering design may be 10% of total transmission line capacity) 
   So, is there any measured data to support the above design.

4. Could you get better performance by SIP over SCTP than SIP over TCP for signaling transfer?

Gengyu
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