=?gb2312?q?=BB=D8=B8=B4=A3=BA=20RE:=20what=20is=20the=20Maxlength=20of=20?= =?gb2312?q?SIP=3F?=

Fri Jan 25 01:42:43 EST 2008

Hi, Herve,
  Thanks for your answer.It help me a lot . Well, I am still not sure about the follow,

  I know the MTU is a limit unit on the ethernet . So the number you metioned "200",is it a sum bytes of  the IP and UDP packet  header ?

  And you tell me when the SIP is too larger for UDP to send ,it will resort to TCP, However,I think this issue can be solved below the transport layer, I mean on the network layer. Why not the carried IP packet be divided into more smaller ones to transmit, something like fragmentation?

  Nora

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