preference (Interface-Level Preference for VPLS Multihoming for FEC 129)
Syntax
preference preference-value;
Hierarchy Level
[edit logical-systems logical-system-name routing-instances instance-name protocols vpls multi-homing site site-name interface interface-name], [edit routing-instances instance-name protocols vpls multi-homing site site-name interface interface-name]
Description
Specify a preference for the interface to become
the designated forwarder (DF) for a multihomed VPLS site. This preference statement can be useful when you want the interface
preference for a site to change dynamically so that the DF election
can be influenced depending on the interface state. Among the list
of interface preferences, Junos OS advertises the best preference
as the VPLS site’s preference value. For example, if the site
has three interfaces configured with preference values 12, 10, and
9, respectively, 12 is advertised as the site preference. If that
interface goes down, 10 is advertised as the site preference.
If you configure interface-level preference, you cannot configure site-level preference.
Options
| preference-value | Preference value for the interface.
|
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 12.3.