3Com Switch 4500 26-Port Configuration Manual page 103

Use the
■ terminal debugging
to the console.
Use the command
■ debugging udp packet
trace the UDP packet.
The following are the UDP packet formats:
UDP output packet:
Source IP address:202.38.160.1
Source port:1024
Destination IP Address 202.38.160.1
Destination port: 4296
Use the
■ debugging tcp packet
trace the TCP packets.
Operations include:
[4500]terminal debugging
<4500>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
IP Performance Configuration
command to output the debugging information
to enable the UDP debugging to
command to enable the TCP debugging to
101