[ns] Header Compression ???

[srrrOMY]

OK Mr.Andi

If we look at the header once and onther
  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |V=2|P|X|  CC   |M|     PT      |       sequence number         |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |                           timestamp                           |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |           synchronization source (SSRC) identifier            |
   +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
   |            contributing source (CSRC) identifiers             |
   |                             ....                              |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

the compression will be in what feild?

Best Regards, Ayoob

On Mon, Apr 21, 2008 at 8:09 PM, Andi Nugroho <andi_n at elect-eng.its.ac.id>
wrote:

>
> Hai ,,
> I wanna ask you all about header compression on Ns2.
> Im doin a project to make a header compression on VoIP packet. Here is my
> topology :
>
>   w(0)     w(1) ----VoIP
>    \        /   \  Source (s1)
>     \      /     \
>      \    /       \ S2
> switch w(2)
>        |
>        |
>       BS(0)
>
>
>   0           0
>  MS(0)       MS(1)
>
> The compression was done after the packet goin through the node w(1) which
> is i assume as the voip gateway.
> What should i do to compress a RTP header???
> if i wanna make a packet compression after the packet going through the
> node what shoukd i do??
> Thx for all info.
>
> --
> Andi Nugroho
> Telecommunication&Multimedia,Electrical Eng.
> Sepuluh Nopember Technological Institute
> Phone  :+6231-60350415
> Mobile :+6285648223929
> Email  :andi_n at elect-eng.its.ac.id
>
>