[转]Trace格式详解

最新推荐文章于 2023-08-21 16:08:10 发布

原创最新推荐文章于 2023-08-21 16:08:10 发布 · 891 阅读

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#application #layer #action #header #stream #up

ACTION:

[s|r|D]:

s -- sent, r -- received, D -- dropped, f- forward

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)
]

例如：

s 76.000000000 _98_ AGT --- 1812 cbr 32 [0 0 0 0] ------- [98:0 0:0 32 0]

as Application 0 (port number) on node 98 sent a CBR packet whose ID is 1812 and size is 32 bytes, at time 76.0 second, to application 0 on node 0 with TTL is 32 hops. The next hop is not decided yet.
s(type) 76.000000000(When) _98_(Who) AGT(Which layer) --- 1812(packetID) cbr(packet type) 32(packet size) [0 0 0 0] ------- [98:0 0:0 32 0]

And we can also interpret the below trace
r 0.010176954 _9_ RTR --- 1 gpsr 29 [0 ffffffff 8 800] ------- [8:255 -1:255 32 0]

in the same way, as The routing agent on node 9 received a GPSR broadcast (mac address 0xff, and ip address is -1, either of them means broadcast) routing packet whose ID is 1 and size is 19 bytes, at time 0.010176954 second, from node 8 (both mac and ip addresses are 8), port 255 (routing agent).