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[ns] ECN ..

To: "[email protected]" <[email protected]>
Subject: [ns] ECN ..
From: hai22 <[email protected]>
Date: Tue, 26 Jun 2001 23:17:27 +1200
Sender: [email protected]

Hi,
I have some  simple questions ...
1-what does TCP Reno implementation in ns do if it receives an ack with
ECN bit set  i.e ack with E flag ?
2-What does TCP vegas in ns do after receiveing the E  flag in ack ..
I know that TCP Sack with rate halving reduces its rhcwnd for ECN .
3-If we set ecn echo bit on in tcp reno with drop tail , then how ecn is
indicated ?

I would be very thankful for any reply in this matter because it puzzles
me that what is use of E flag if Reno source do not reduce sending rate
or congestion window cwnd_ ... 
Thanks in advance,
Aun
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