ip bfd (for a port)

Enable and configure Bidirectional Forwarding Detection (BFD) on a port.

Syntax

Command Parameters

enable
Enable BFD on a port.
interval
Specifies the transmit interval in milliseconds. The default is 200 ms.
The minimum value for the transmit interval is 100 ms. You can configure a maximum of 4 BFD sessions with the minimum value for the transmit interval. You can configure the remaining BFD sessions with a transmit interval that is greater than or equal to the 200 ms default value.
min-rx
Specifies the receive interval in milliseconds. The default is 200 ms.
The minimum value for the receive interval is 100 ms. You can configure a maximum of 4 BFD sessions with the minimum value for the receive interval. You can configure the remaining BFD sessions with a receive interval that is greater than or equal to the 200 ms default value.
multiplier
Specifies the multiplier used to calculate the amount of time BFD waits before it declares a receive timeout. The default is 3.
If you configure the transmit interval or the receive interval as 100 ms, you must configure a value of 4 or greater for the multiplier.
port {slot/port[/sub-port][-slot/port[/sub-port]][,...][slot/all][all]}

Identifies the slot and port in one of the following formats:

  • a single slot and port (slot/port)

  • a range of slots and ports (slot/port-slot/port)

  • a series of slots and ports (slot/port,slot/port,slot/port)

  • all ports on the same slot (slot/all)

  • all ports on the switch (all)

If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.

Default

The default is disabled.

Command Mode

GigabitEthernet Interface Configuration