R0106-HP MSR Router Series High Availability Command Reference(V7)

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Item Restrictions
Configuration restrictions
• An interface can only be the backup of one interface.
• A primary interface cannot be configured as a backup interface at
the same time.
• A main interface and its subinterfaces cannot be the backup of each
other.
• The primary and backup interfaces cannot be members of a logical
link. For example, they cannot be members of a Layer 3
aggregation group.
This command and the backup track command are mutually exclusive.
• If you have configured the backup interface command on the primary interface, you cannot
configure the backup track command on the primary or backup interface.
• If you have associated a backup interface with a track entry, you cannot configure the backup
interface command on it or specify it as a backup interface by using the backup interface
command.
Examples
# Specify Serial 2/1/1 as a backup interface of Serial 2/1/0, with a priority of 50.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] backup interface serial 2/1/1 50
Related commands
backup track
backup threshold
Use backup threshold to configure traffic thresholds on a primary interface for load sharing.
Use undo backup threshold to restore the default.
Syntax
backup threshold upper-threshold lower-threshold
undo backup threshold
Default
No traffic thresholds are configured.
Views
Interface view
Predefined user roles
network-admin
Parameters
upper-threshold: Specifies the upper threshold as a percentage of bandwidth available on the primary
interface. The value range is 1 to 99.
lower-threshold: Specifies the lower threshold as a percentage of bandwidth available on the primary
interface. The value range is 1 to 99. The lower threshold must be smaller than the upper threshold.