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针对快速以太网和千兆位以太网接口使用回传测试的清单

 

用途

使用回环测试隔离快速以太网和千兆位以太网接口问题。

操作

表 1提供了使用回传测试实现快速以太网和千兆位以太网接口的链接和命令。

表 1: 针对快速以太网和千兆位以太网接口使用回传测试的清单

Task

命令或操作

Diagnose a Suspected Hardware Problem with a Fast Ethernet or Gigabit Ethernet Interface
  1. Create a Loopback

 

将传输端口连接到接收端口。

将引脚1(TX +)和引脚3(RX +)以及引脚2(TX-)和引脚6(RX-)组合在一起。

[edit interfaces interface-name (fastether-options | gigether-options)]

set loopback

show

commit

  1. Verify That the Fast Ethernet or Gigabit Ethernet Interface Is Up

show interfaces (fe-fpc/pic/port | ge-fpc/pic/port)

  1. Configure a Static Address Resolution Protocol Table Entry

show interfaces ge-fpc/pic/port

[edit interfaces interface-name unit logical-unit-number family inet address address]

set arp ip-address mac mac-address
show

commit

run show arp no-resolve

  1. Clear Fast Ethernet or Gigabit Ethernet Interface Statistics

clear interfaces statistics fe-fpc/pic/port | ge-fpc/pic/port

  1. Ping the Fast Ethernet or Gigabit Ethernet Interface

ping remote-IP-address bypass-routing interface (fe-fpc/pic/port | ge-fpc/pic/port count 100 rapid

  1. Check for Fast Ethernet or Gigabit Ethernet Interface Error Statistics

show interfaces (fe-fpc/pic/port | ge-fpc/pic/port ) extensive

Diagnose a Suspected Circuit Problem

执行步骤2到步骤 8 Diagnose a Suspected Hardware Problem with a Fast Ethernet or Gigabit Ethernet Interface