control

Use this command to configure BFD Control packet parameters.

Syntax

control {min-tx interval | min-rx interval | multiplier number}
no control {min-tx | min-rx | multiplier}

Parameters

min-tx interval Specifies the minimum interval in 50ms increments between the transmission of BFD Control packets. Valid values are from 50 - 10000ms. The default value is 250ms.
min-rx interval Specifies the minimum interval in 50ms increments between received Control packets the BFD Control sessions can support. Valid values are from 50 - 10000ms. The default value is 250ms.
multiplier number Specifies the value multiplied by the negotiated transmit rate that produces the detection time. Defaults to 4.

Defaults

  • The min-tx interval defaults to 250ms
  • The min-rx interval defaults to 250ms
  • The multiplier defaults to 4

Mode

BFD probe configuration mode.

Usage

The peer will transition the BFD session to the down state if a control packet is not received within the detection time interval that is produced by multiplying the multiplier value and the negotiated transmit rate.

See RFC 5880 for an explanation for minimum transmit and receive settings when Control packets are used in conjunction with the Echo function.

Use the “no” option to reset the specified parameter to its default value.

Examples

This example shows how to set the minimum transmit and receive intervals to 350ms and the minimum number of missed consecutive Control packets to 5 for BFD probe bfdProbe1:

System(rw)->configure
System(rw-config)->probe bfdProbe1 bfd
System(su-config-probe-bfd)->control min-tx 350 min-rx 350 multiplier 5
System(su-config-probe-bfd)->