Juniper Networks EX4200, EX3200 manual Troubleshooting Switch Components

Chapter 15: Troubleshooting Switch Components

Cause The uplink module installed in the switch was replaced.

Solution Set a port in the uplink module as a VCP. See Setting an Uplink Module Port as a Virtual Chassis Port (CLI Procedure).

One of the last four network ports on an EX3200 switch with an SFP or SFP+ uplink module installed is disabled

Problem One of the last four built-in ports (ge-0/0/20through ge-0/0/23on 24-port models or ge-0/0/44through ge-0/0/47on 48-port models) of an EX3200 switch with an SFP or SFP+ uplink module installed in it is disabled.

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 The last four built-in ports use the same ASIC as the SFP uplink module. Therefore, if you install a transceiver in an SFP or SFP+ uplink module installed in an EX3200 switch, a corresponding base port from the last four built-in ports is disabled.

Solution If you need to use the disabled built-in port, you must remove the transceiver from the SFP or SFP+ uplink module. Alternatively, you can install an XFP uplink module instead of an SFP or SFP+ uplink module. There is no conflict between the built-in network ports and the ports on the XFP uplink modules.

Related Topics ■ Monitoring Interface Status and Traffic

■Configuring Gigabit Ethernet Interfaces (CLI Procedure)

■Configuring Gigabit Ethernet Interfaces (J-Web Procedure)

■Installing an Uplink Module in an EX3200 or EX4200 Switch on page 133

■Removing a Transceiver from an EX Series Switch on page 177

■Uplink Modules in EX3200 and EX4200 Switches on page 33

■Understanding Virtual Chassis Hardware Configuration on an EX4200 Switch on page 101

One of the last four network ports on an EX3200 switch with an SFP or SFP+ uplink module installed is disabled ■ 193