Bfd-Liveness-Detection (Layer 2 Vpn And Vpls) - Juniper EX9200 Features Manual

bfd-liveness-detection (Layer 2 VPN and VPLS)

Syntax
Hierarchy Level
Release Information
Description
Required Privilege
Level
Copyright © 2016, Juniper Networks, Inc.
bfd-liveness-detection {
detection-time {
threshold milliseconds;
}
minimum-interval milliseconds;
minimum-receive-interval milliseconds;
multiplier number;
no-adaptation;
transmit-interval {
minimum-interval milliseconds;
threshold milliseconds;
}
version (1 | automatic);
}
[edit logical-system logical-system-name routing-instances routing-instance-name protocols
l2vpn oam],
[edit logical-system logical-system-name routing-instances routing-instance-name protocols
vpls neighbor neighbor-id oam],
[edit logical-system logical-system-name routing-instances routing-instance-name protocols
vpls mesh-group mesh-group-name neighbor neighbor-id oam],
[edit logical-system logical-system-name routing-instances routing-instance-name protocols
vpls oam],
[edit routing-instances routing-instance-name protocols l2vpn oam],
[edit routing-instances routing-instance-name protocols vpls neighbor neighbor-id oam],
[edit routing-instances routing-instance-name protocols vpls mesh-group mesh-group-name
neighbor neighbor-id oam],
[edit routing-instances routing-instance-name protocols vpls oam]
Statement introduced in Junos OS Release 10.0.
Statement introduced in Junos OS Release 13.2 for Layer 2 VPNs and VPLS.
Configure bidirectional failure detection timers.
The BFD failure detection timers are adaptive and can be adjusted to be more or less
aggressive. For example, the timers can adapt to a higher value if the adjacency fails, or
a neighbor can negotiate a higher value for a timer than the configured value. The timers
adapt to a higher value when a BFD session flap occurs more than three times in a span
of 15 seconds. A back-off algorithm increases the receive (Rx) interval by two if the local
BFD instance is the reason for the session flap. The transmission (Tx) interval is increased
by two if the remote BFD instance is the reason for the session flap. You can use the
command to return BFD interval timers to their configured values. The
bfd adaptation
clear bfd adaptation command is hitless, meaning that the command does not affect
traffic flow on the routing device.
The remaining statements are explained separately.
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Chapter 13: Configuration Statements
clear
113