hi thanks for reply. my problem is there is no inforamtion when data is send from source node and there is no information when packet is dorpped (as there is no s and d in first colum) and i go to analysis this file all analysis files like throughput, jitter and all other work with s and r and d in starting. i can't analysis this tracefile. i am not expert in linux and in ns2. can u please suggest me how to analysis these type of trace files. thanks in advance
On Fri, 01 Jun 2007 Daniel Mahrenholz wrote : >Hi, > >harpreet schrieb: >> Hi. >>I want to analysis trace file which looks like (not exactly ) data given >>below. >>Here are NS Manual's example >>+ 1.84375 0 2 cbr 210 ------- 0 0.0 3.1 225 610 >>- 1.84375 0 2 cbr 210 ------- 0 0.0 3.1 225 610 >>r 1.84471 2 1 cbr 210 ------- 1 3.0 1.0 195 600 >>r 1.84566 2 0 ack 40 ------- 2 3.2 0.1 82 602 >>+ 1.84566 0 2 tcp 1000 ------- 2 0.1 3.2 102 611 >>- 1.84566 0 2 tcp 1000 ------- 2 0.1 3.2 102 611 >>r 1.84609 0 2 cbr 210 ------- 0 0.0 3.1 225 610 >>+ 1.84609 2 3 cbr 210 ------- 0 0.0 3.1 225 610 >>d 1.84609 2 3 cbr 210 ------- 0 0.0 3.1 225 610 >>- 1.8461 2 3 cbr 210 ------- 0 0.0 3.1 192 511 >>r 1.84612 3 2 cbr 210 ------- 1 3.0 1.0 196 603 >>+ 1.84612 2 1 cbr 210 ------- 1 3.0 1.0 196 603 >>- 1.84612 2 1 cbr 210 ------- 1 3.0 1.0 196 603 >>+ 1.84625 3 2 cbr 210 ------- 1 3.0 1.0 199 612 >> >>Ok. last field is packet identifier right? and it's unique. >>But 1st line 610 packet enque and next deque. but 7th line 610 packet again >>received and enque and dropped. >>How can this happen? packet identifier is not unique? >> >Line 1: packet #610 enqueued on node 0 >Line 2: packet #610 dequeued on node 1 >Line 7: packet #610 received on node 2 from node 0 >Line 8: packet #610 enqueued on node 2 (now with new destination / next hop 3) >Line 9: packet #610 dropped > >If you receive a packet, the receiver is still the destination. > >Hope this clearifies you problem., >Daniel. > >-- Dr.-Ing. Daniel Mahrenholz >rt-solutions.de GmbH >Oberländer Ufer 190a >D-50968 Köln > >Web: www.rt-solutions.de > >rt-solutions.de >networks you can trust. > harpreet singh
