[e2e] Simple Question on TCP Window Size

Jeong-woo Cho ggumdol at comis.kaist.ac.kr
Tue May 8 11:24:39 PDT 2001

 Hi, everyone.

 TCP reduces its window size (cwnd) to half of current cwnd when it detects loss via triple duplicate acknowlegements. So, I define the reduction ratio of current TCP as 1/2. I can guess that if reduction ration is smaller, network would be more stable. But, I think that if we set reduction ratio a little higher than current value 1/2, unfairness between UDP and TCP would decrease.

 Why don't we set the reduction ratio a litter higher?

 Is there any research related to this topic? Is there any detailed analysis on the reduction ratio?

 Thanks for reading.

 Cho, Jeong-woo
 Communication and Information Systems Laboratory
 Dept. of Electrical Engineering and Computer Science
 Korea Advanced Institute of Science and Technology(KAIST)
 373-1 Kusong-dong, Yusong-gu, Taejon 305-701, Korea
 TEL: +82-42-869-8067 (ex.107) FAX: +82-42-867-0550
 E-mail: ggumdol at comis.kaist.ac.kr

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