Re: [ns] big delay by MAC-802_11 bug

2009-04-08 Thread David Ross
Anas, the delay is not the MAC, it is the RTR to the MAC, which is the IFQ. The only time I see these delays is with lots of nodes and lots of queued packets, say 50 queued and each takes 3 seconds to win contention = 150 seconds for the packet to get out. - David Ross QUT, Australia.

[ns] big delay by MAC-802_11 bug

2009-04-06 Thread anas
Dear all, I have encountered a large delay end to end delay and when I checked the out put file I see some of the packets have a very large delay at MAC layer as shown below: f 202.663960039 _25_ RTR --- 585 cbr 576 [13a 2b 19 800] --- [9:1 10:1 25 30] [17] 7 2 s 358.840523771 _25_ MAC