Hi I was simulating a protocol in which packets are forwarded by selective broadcast and ack for the packet is sent by the shortest path. I don't know why but the ack packets is getting dropped sometimes. Also, the log below shows that the packet is forwarded at 15.602666889 but was dropped at 50.000000000 that is the end of simulation. Can anyone help me understand why this is happening?
In this log Ack was sent from node 9 to 0. All nodes are wireless. The route gets updated at regular intervals so the route taken by the packet is different. By looking at the routing table i have verified that the packet is not dropped because of NO ROUTE, neither there was any node/link failure. ----------------Fist Ack sent ------------- s -t 15.281398751 -Hs 9 -Hd 7 -Ni 9 -Nx 968.00 -Ny 550.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 148 -Iv 32 r -t 15.284994686 -Hs 7 -Hd 7 -Ni 7 -Nx 780.00 -Ny 480.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 7 -Ms 9 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 148 -Iv 32 f -t 15.284994686 -Hs 7 -Hd 6 -Ni 7 -Nx 780.00 -Ny 480.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 7 -Ms 9 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 148 -Iv 32 r -t 15.288704492 -Hs 6 -Hd 6 -Ni 6 -Nx 570.00 -Ny 440.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 6 -Ms 7 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 148 -Iv 32 f -t 15.288704492 -Hs 6 -Hd 0 -Ni 6 -Nx 570.00 -Ny 440.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 6 -Ms 7 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 148 -Iv 32 r -t 15.303365161 -Hs 0 -Hd 0 -Ni 0 -Nx 160.00 -Ny 485.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 0 -Ms 6 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 148 -Iv 32 ----------------Fist Ack received ------------- ----------------Second Ack sent --------------- s -t 15.601218735 -Hs 9 -Hd 7 -Ni 9 -Nx 968.00 -Ny 550.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 194 -Iv 32 r -t 15.602666889 -Hs 7 -Hd 7 -Ni 7 -Nx 780.00 -Ny 480.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 7 -Ms 9 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 194 -Iv 32 f -t 15.602666889 -Hs 7 -Hd 4 -Ni 7 -Nx 780.00 -Ny 480.00 -Nz 15.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 102 -Md 7 -Ms 9 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 194 -Iv 32 d -t 50.000000000 -Hs 7 -Hd 4 -Ni 7 -Nx 780.00 -Ny 480.00 -Nz 15.00 -Ne -1.000000 -Nl IFQ -Nw END -Ma 102 -Md 7 -Ms 7 -Mt 800 -Is 9.1 -Id 0.255 -It ACKK -Il 0 -If 0 -Ii 194 -Iv 32 Thanks Amit Khanna
