Allied-telesis AT-S94 CLI (AT-8000S Series) Uživatelský manuál stáhnout pdf (Strana 200)

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Allied Telesis

AT-8000S-S94-3.0 Command Line Interface User’s Guide

Chapter 20.PHY Diagnostics Commands

test copper-port tdr

The test copper-port tdr Privileged EXEC mode command uses Time Domain Reflectometry (TDR) technology

to diagnose the quality and characteristics of a copper cable attached to a port.

Syntax

test copper-port tdr interface

Parameters

•

interface — A valid Ethernet port. (Full syntax: unit/port)

Default Configuration

This command has no default configuration.

Command Mode

Privileged EXEC mode

User Guidelines

The port to be tested should be shut down during the test, unless it is a combination port with fiber port active.

The maximum length of the cable for the TDR test is 120 meter.

Example

The following example results in a report on the cable attached to port 1/e3.

show copper-ports tdr

The show copper-ports tdr User EXEC mode command displays information on the last Time Domain

Reflectometry (TDR) test performed on copper ports.

Syntax

show copper-ports tdr [interface]

Parameters

•

interface — A valid Ethernet port. (Full syntax: unit/port)

console#

test copper-port tdr

1/e3

Cable is open at 64 meters

console#

test copper-port tdr

2/e3

Can’t perform this test on fiber ports

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