R3303-HP 6600/HSR6600 Routers Layer 3 - IP Routing Command Reference

200
non-stop-routing interval
Use non-stop-routing interval to set the NSR interval.
Use undo non-stop-routing interval to restore the default.
Syntax
non-stop-routing interval interval-value
undo non-stop-routing interval
Default
The NSR interval is 0 seconds—no NSR interval is set.
Views
IS-IS view
Default command level
2: System view
Parameters
interval-value: Specifies the NSR interval in the range of 30 to 1800 seconds. The NSR interval refers to
the expected interval of an active/standby main board switchover on a device.
Usage guidelines
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
an active/standby 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.
The following matrix shows the command and router compatibility:
Command 6602 HSR6602 6604/6608/6616
non-stop-routing
interval
No No
• Yes when using the RPE-X1 or RSE-X1
MPU
• No when using the MCP MPU
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)
Use preference to configure the preference for IS-IS.
Use undo preference to restore the default.