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liveness-detection (high availability)

Syntax

Hierarchy Level

Description

Configure Bidirectional Forwarding Detection (BFD) options for the peer node.

Options

detection-time Specify BFD failure detection time.
  • threshold—Specify the threshold for the adaptation of the BFD session detection time. When the detection time adapts to a value equal to or greater than the threshold, a single trap and a single system log message are sent.

    Range: 1 through 255,000 milliseconds

minimum-interval

Configure the minimum interval at which the device transmits hello packets and then expects to receive a reply from a neighbor with which it has established a BFD session

  • Range: 1 through 255,000 milliseconds

minimum-receive-interval

(Optional) Configure the minimum interval after which the local device must receive a reply from a neighbor with which it has established a BFD session.

  • Range: 1 through 255,000 milliseconds

multiplier (Optional) Configure the number of hello packets not received by a neighbor that causes the originating interface to be declared down.
  • Range: 1 through 255

  • Default: 3

transmit-interval The negotiated transmit interval for a peer is the interval between the sending of BFD packets to peers. The receive interval for a peer is the minimum time that it requires between packets sent from its peer; the receive interval is not negotiated between peers.
  • minimum-interval milliseconds—Configure the minimum interval at which the local routing device transmits hello packets to a neighbor with which it has established a BFD session.

    • Range: 1 through 255

  • threshold milliseconds—Specify the threshold for the adaptation of the BFD session transmit interval. When the transmit interval adapts to a value greater than the threshold, a single trap and a single system message are sent.

    • Range: 0 through 4,294,967,295 (2^32 – 1)

    The threshold value specified in the threshold statement must be greater than the value specified in the minimum-interval statement for the transmit-interval statement.
version

BFD protocol version number

  • 0—BFD version 0 (deprecated)

  • 1—BFD version 1

  • automatic—Choose BFD version automatically

The remaining statements are explained separately. See CLI Explorer.

Required Privilege Level

interface

Release Information

Statement introduced in Junos OS Release 20.4R1.