HP 7000 dl Router Series Guide de l'utilisateur télécharger pdf (Page 85)

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SROS Command Line Interface Reference Guide Enable Mode Command Set

debug ip tcp events

Use the debug ip tcp events command to activate debug messages associated with significant TCP events

such as state changes, retransmissions, session aborts, etc., in the Secure Router OS. Debug messages are

displayed (real-time) to the terminal (or Telnet) screen. Use the no form of this command to disable the

debug messages.

Syntax Description

No default value necessary for this command.

Default Values

By default, all debug messages in the Secure Router OS are disabled.

Command Modes

# Enable Command Mode

Functional Notes

In the debug ip tcp events information, TCB stands for TCP task control block. The numbers which

sometimes appear next to TCB (e.g., TCB5 in the following example) represent the TCP session number.

This allows you to differentiate debug messages for multiple TCP sessions.

Usage Examples

The following is sample output for this command:

>enable

#debug ip tcp events

2003.02.17 07:40:56 IP.TCP EVENTS TCP: Allocating block 5

2003.02.17 07:40:56 IP.TCP EVENTS TCB5: state change: FREE->SYNRCVD

2003.02.17 07:40:56 IP.TCP EVENTS TCB5: new connection from 172.22.75.246:3473 to

10.200.2.201:23

2003.02.17 07:40:56 IP.TCP EVENTS TCB5: state change: SYNRCVD->ESTABLISHED

[172.22.75.246:3473]

2003.02.17 07:41:06 IP.TCP EVENTS TCB5: Connection aborted -- error = RESET

2003.02.17 07:41:06 IP.TCP EVENTS TCB5: De-allocating tcb

Note

These debug events are logged for packets that are sent or received from the router.

Forwarded TCP packets are not included.

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 940 941

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HP 7000 dl Router Series Guide de l'utilisateur Page 85

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