r 160.093884945_6_RTR---5 tcp 1492[a2 4 6 800]-------[65536:0 16777984:0 31 16777984][1 0]2 0
Here we see a TCP data packet being received by a node with id of 6.UID of this pkt is 5 with a cmn hdr size of 1492.The mac details shows an IP pkt(ETHERTYPE_IP is defined as 0x0800,ETHERTYPE_ARP is 0x0806),mac-id of this receiving node is 4.That of the sending node is 6 and expected time to send this data pkt over the wireless channel is a2(hex2dec conversion:160+2 sec).Additionally,IP traces information about IP src and destination addresses.The src translates(using a 3 level hier-address of 8/8/8)to a address string of 0.1.0 with port of 0.The dest address is 1.0.3 with port address of 0.The TTL value is 31 and the destination was a hop away from the src.Additionally TCP format prints information about tcp seqno of 1,ackno of 0.See other formats described in~ns//cmu-trace.cc for DSR,UDP/MESSAGE,TCP/ACK and CBR packet types.
Other trace formats are also used by the routing agents(TORA and DSR)to log certain special routing events like"originating"(adding a SR header to a packet)or"ran off the end of a source route"indicating some sort of routing problem with the sourceroute etc.These special event traces begin with"S"for DSR and"T"for Tora and may be found in~ns/tora/tora.cc for TORA and~ns/dsr/dsrgent.cc for DSR routing agent.
（from: http://blog.hz0752.com/?uid-15519-action-viewspace-itemid-163973）
