preference (IPv6 Router Advertisement)
Syntax
preference (high | low | medium);
Hierarchy Level
[edit logical-systems logical-system-name protocols router-advertisement interface interface-name], [edit protocols router-advertisement interface interface-name]
Description
Specify the router preference that is communicated
to IPv6 hosts through router advertisements. The preference value in the router advertisements enables IPv6 hosts to select
a default router to reach a remote destination.
The preference can be configured when there are multiple
devices that route to distinct sets of prefixes and where one of the
devices would lead to considerably fewer redirects. You can indicate
a lower preference for a new device that is not completely configured
yet, so that hosts do not adopt this new device as the default device
and thus avoid traffic loss.
Options
You can specify different levels of preference depending on your requirements:
| high | Specify a high preference for a device. |
| low | Specify a low preference for a device. |
| medium | Specify a medium preference for a device. This is the default preference. |
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 16.1.