3Com 8800 Configuration Manual page 142

3com 8800: install guide

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3Com Switch 8800 Configuration Guide

Use the debugging tcp packet command to enable the TCP debugging to trace

the TCP packets.

Operations include:

<SW8800> 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

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

window = 16079

terminal debugging

Chapter 15 IP Performance Configuration

Troubleshooting