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: Firewall's minimal interval depends on platform. See Additional Platform Information.
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: Firewall's minimal interval depends on platform. See Additional Platform Information.
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
no-adaption	Disable adaptation.
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: Firewall's minimal interval depends on platform. See Additional Platform Information 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. 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.

Additional Platform Information

Use Feature Explorer to confirm platform and release support for specific features.

Use the following table to review platform-specific behaviors for your platform.

SRX Series Firewalls Supporting MNHA	SRX5400, SRX5600, SRx5800	SRX1500, SRX1600, SRX2300, SRX4100, SRX4120 SRX4200, SRX4600, SRX4700	vSRX Virtual Firewall	SRX400 and SRX440
Minimum transmit and receive interval range for BFD monitoring (milliseconds))	100–255000	300–255000	100–255000	1000–255000

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