Operation Manual - Network Protocol 
Quidway S3000-EI Series Ethernet Switches  Chapter 6  
IP Performance Configuration
 
Huawei Technologies Proprietary 
6-3 
z  Use the debugging tcp packet command to enable the TCP debugging to trace 
the TCP packets.
 
Operations include: 
[Quidway] terminal debugging 
<Quidway> 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 :4185089 
Ack number: 0 
Flag  :SYN 
Packet length :60 
Data offset: 10