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Troubleshooting Disabled or Down Interfaces

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

  1. Disabled ports on EX 3200 switches with a 4-port Gigabit Ethernet uplink module (EX-UM-4SFP) installed

Disabled ports on EX 3200 switches with a 4-port Gigabit Ethernet uplink module (EX-UM-4SFP) installed

Problem

The last 4 base ports (ge-0/0/20–23 on 24 port models or ge-0/0/44–47 on 48 port models) of EX 3200 switch are disabled.

The 4-port Gigabit Ethernet uplink module (EX-UM-4SFP) is installed

When you check status with the show interfaces command or with the J-Web user interface, the last 4 base ports display a status of down.

Cause

The last 4 base ports use the same ASIC as the 4-port Gigabit Ethernet uplink module. Therefore, the last 4 base ports are disabled when this uplink module is installed.

Solution

If you need to use the disabled base ports, you should remove the 4–port Gigabit Ethernet uplink module. You can install the 2–port 10–Gigabit Ethernet uplink module (EX-UM-2XFP) instead. There is no ASIC conflict with the EX-UM-2XFP uplink module.