FDDI Interface

A 100Mbps FDDI LAN network interface using fiber optic cable. There are three LEDs on each FDDI card, labeled PHY A, PHY B, and Enabled.

If the router is running IOS version 10.2 or earlier, the status color is based on the port’s administrative status (ifAdminStatus) and operational status (ifOperStatus) values, and is the same on both connectors. If the router is running IOS 10.3 or later the status color is based on the Port Connect State (fddimibPORTConnectState) for each connector separately, with the following possible values:

Status color | Status
brown | disabled or standby
blue | connecting
green | active