[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

How to change congestion window?



Hi all,

I want to implement "new TCP congestion control algorithm"
and "router mechanism" with ns.
I'm going to simulate as follows.
 
      s1                      s3
         \                  /
           \              / 
             r1 ------ r2
           /              \ 
         /                  \
      s2                      s4
 
s1->r1->r2->s3 : TCP flow
s2->r1->r2->s4 : UDP flow

I want to read ACK(s3->r2->r1->s1) at r1(router),
and change "acknowledgement field" in TCP header in the ACK packet.
(Of course, I know it's impossible in practice.)
Ultimately, I change sender's congestion window to calculated value at r1.

How should I do?

Sincerely,
jhkim