[ns] Interpretation of wireless trace file

[Mubashir Rehmani]

Hello Srirupa Dasgupta,

Here is the answer to your question:

"s" and "r" indicates that you send and receive the packets respectively.
RTR means network layer and AGT means application layer.

Here is the full description of trace format:

To find the interpretation of all possible trace format when you do the
wireless simulation, you'd better read the code of ns2 in file
*ns2home/trace/cmu-trace{.h,
.cc}* Mostly, the format would be as

ACTION:	[s|r|D]: s -- sent, r -- received, D -- dropped
WHEN:	the time when the action happened
WHERE:	the node where the action happened
LAYER:	AGT -- application,
	RTR -- routing,

	LL  -- link layer (ARP is done here)
	IFQ -- outgoing packet queue (between link and mac layer)
	MAC -- mac,
	PHY -- physical
flags:
SEQNO:	the sequence number of the packet
TYPE:	the packet type

		cbr -- CBR data stream packet

		DSR -- DSR routing packet (control packet generated by routing)
		RTS -- RTS packet generated by MAC 802.11
		ARP -- link layer ARP packet
SIZE:	the size of packet at current layer, when packet goes down, size
increases, goes up size decreases

[a b c d]:	a -- the packet duration in mac layer header
		b -- the mac address of destination
		c -- the mac address of source
		d -- the mac type of the packet body
flags:
[......]:	[
		source node ip : port_number

		destination node ip (-1 means broadcast) : port_number
		ip header ttl
		ip of next hop (0 means node 0 or broadcast)
		]


i

-- 
Mubashir Husain Rehmani

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