H3C S9500 Series Operation Manual page 162

Operation Manual – IP Performance
H3C S9500 Series Routing Switches
Destination port: 4296
task = ROUT(15)
socketid = 6,
src = 192.168.1.1:520,
dst = 255.255.255.255:520,
datalen = 24
Use the debugging tcp packet command to enable the TCP debugging to trace
the TCP packets.
Operations include:
<H3C> terminal debugging
<H3C> debugging tcp packet
Then the TCP packets received or sent can be checked in real time. Specific packet
formats include:
TCP output packet:
Source IP address:202.38.160.1
Source port:1024
Destination IP Address 202.38.160.1
Destination port: 4296
Sequence number :4195089
Ack number: 0
Flag :SYN
Packet length :60
Data offset: 10
task = ROUT(15)
socketid = 5
state = Established
src = 172.16.1.2
Source port:1025
dst = 172.16.1.1
Destination port: 4296
seq = 1921836502
ack = 4192768493
flag = ACK
window = 16079
Chapter 1 IP Performance Configuration
1-5