3Com Switch 4200G Configuration Guide

372 CHAPTER 42: IP PERFORMANCE CONFIGURATION
You can execute the reset commands in user view to clear the IP, TCP and UDP traffic
statistics. You can also execute the debugging commands to enable different IP
performance debugging.
Troubleshooting the IP
Performance
Configuration
Symptom: IP packets are forwarded normally, but TCP and UDP do not operate
normally.
Solution: Enable related debugging and check the debugging information.
■ Use the display command to check the IP performance of the system, and verify
that the PC is operating normally.
■ Use the terminal debugging command to output the debugging information to
the console.
■ Use the debugging udp packet command to enable UDP debugging to track
UDP data packets.
Table 321 Display and debug the IP performance
Operation Command Description
Display the TCP connection
status
display tcp status You can execute the
display commands
in any view.
Display the TCP traffic statistics display tcp statistics
Display the UDP traffic statistics display udp statistics
Display the IP traffic statistics display ip statistics
Display the ICMP traffic statistics display icmp statistics
Display the current socket
information of the system
display ip socket [ socktype
sock-type ] [ task-id socket-id ]
Display FIB (forward information
base) entries
display fib
Clear the IP traffic statistics reset ip statistics —
Clear the TCP traffic statistics reset tcp statistics —
Clear the UDP traffic statistics reset udp statistics —
Enable system debugging debugging module-name [
debugging-option ]
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