standby (Protocols Layer 2 Circuit)
Syntax
standby;
Hierarchy Level
[edit logical-systems logical-system-name protocols l2circuit local-switching interface interface-name end-interface interface interface-name backup-neighbor address], [edit logical-systems logical-system-name protocols l2circuit neighbor address interface interface-name backup-neighbor address], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols vpls neighbor address backup-neighbor address], [edit protocols l2circuit neighbor address interface interface-name backup-neighbor address], [edit routing-instances routing-instance-name protocols vpls neighbor address backup-neighbor address]
Description
Configure the pseudowire to the specified backup neighbor as the standby. When you configure this statement, traffic flows over both the active and standby pseudowires to the backup device (either a CE device or PE router). The backup device drops the traffic from the standby pseudowire, unless the active pseudowire fails. If the active pseudowire fails, the backup device automatically switches to the standby pseudowire.
The standby statement is quite similar to the hot-standby statement introduced in Junos OS Release 12.3. The hot-standby statement allows for a faster forwarding-path switchover during
transition periods, as compared to what is allowed by the standby statement.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced before Junos OS Release 7.4.
Hierarchy levels associated with the backup-neighbor statement added in Junos OS Release 9.2.