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Hierarchy Level


Allows you to configure bidirectional forwarding detection (BFD) and a control channel for a pseudowire, in addition to the corresponding operations and management functions to be used over that control channel. BFD provides a low resource fault detection mechanism for the continuous monitoring of the pseudowire data path and for detecting data plane failures. The control-channel statement is not applicable to Layer 2 circuit pseudowires.



The bfd-liveness-detection statement and substatements are described in the Junos OS Routing Protocols Library.

ping-multiplier ping-count

Specify the number of LSP ping packets to delay the virtual circuit connectivity verification (VCCV) Bidirectional Forwarding Detection (BFD) session from going down. The VCCV BFD session is signaled down only after the specified number of LSP ping packets are lost. This feature is supported for Layer 2 Circuit, Layer 2 VPN, and VPLS technologies.

The other statements are explained separately.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 10.0.

Support for VPLS FEC 129 introduced in Junos OS Release 12.2.

ping-multiplier statement introduced in Junos OS Release 16.1.