prom Port Remote Fault Detect

1.3.6.1.4.1.2167.3.6.9.1.1.91

When remote fault detection is enabled, this port will transmit a 'remote fault present' control frame to its peer interface when it detects a link failure. It will periodically send the control frame until the link failure clears, at which time it will send a 'remote fault clear' control frame. If this port receives a 'remote fault present' control frame it will declare a link failure until it is informed that the condition has cleared or until the remote fault times out.