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Troubleshooting Network Interfaces on EX4200 Switches

This topic provides troubleshooting information for specific problems related to interfaces on EX4200 switches.

The interface on the port in which an SFP or SFP+ transceiver is installed in an SFP+ uplink module is down

Problem

The interface on the port in which an SFP or SFP+ transceiver is installed in an SFP+ uplink module installed in an EX4200 switch is down.

When you check the status with the CLI command show interfaces ge- or with the J-Web user interface, the disabled port is not listed.

Cause

By default, the SFP+ uplink module operates in the 10-gigabit mode and supports only SFP+ transceivers. The operating mode for the module is incorrectly set.

Solution

Either SFP+ or SFP transceivers can be installed in SFP+ uplink modules. You must configure the operating mode of the SFP+ uplink module to match the type of transceiver you want to use. For SFP+ transceivers, configure the 10-gigabit operating mode and for SFP transceivers, configure the 1-gigabit operating mode. See Setting the Mode on an SFP+ Uplink Module (CLI Procedure).

 

Related Documentation

 

Published: 2013-01-30

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