Preference (Is-Is View) - HP FlexNetwork 3600 v2 Series Command Reference Manual

Parameters
interval-value: NSR interval, in the range of 30 to 1800 seconds. The NSR interval refers to the
expected interval of a master/slave switchover on an IRF fabric.
Description
Use non-stop-routing interval to set the NSR interval.
Use undo non-stop-routing interval to restore the default.
By default, the NSR interval is 0 seconds—no NSR interval is set.
If an NSR interval is set on a device, a neighbor of the device uses the larger value of the NSR
interval and hold time of the device as the hold time to ensure the neighbor relationship does not time
out during a master/slave switchover on the device.
If no NSR interval is configured on the device, the hold time configured on a specific interface is used
by the relevant neighbor.
Examples
# Set the NSR interval to 40 seconds for IS-IS process 1.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] non-stop-routing
[Sysname-isis-1] non-stop-routing interval 40

preference (IS-IS view)

Syntax
preference { preference | route-policy route-policy-name } *
undo preference
View
IS-IS view
Default level
2: System level
Parameters
preference: Specifies the preference for IS-IS protocol, ranging from 1 to 255.
route-policy route-policy-name: Routing policy name, a case-sensitive string of 1 to 63 characters.
The preference applies to routes passing the routing policy.
Description
Use preference to configure the preference for IS-IS.
Use undo preference to restore the default.
By default, IS-IS preference is 15.
If a routing policy is specified in this command, the preference (if any) set by the routing policy
applies to those matched routes. Other routes use the preference set by the preference command.
When a router runs multiple routing protocols at the same time, the system will configure a
preference to each routing protocol. If several protocols find routes to the same destination, the route
of the routing protocol with the highest preference is selected.
Examples
# Configure the preference of IS-IS protocol as 25.
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