H3C S7500E Series Command Manual page 584

Command Manual – IPv6 Routing
H3C S7500E Series Ethernet Switches
By default, the preference for OSPFv3 internal routes is 10, and that for OSPFv3
external routes is 150.
The smaller the value is, the higher the preference is.
A router may run multiple routing protocols. Each protocol has a preference. When
several routing protocols find multiple routes to the same destination, the route found
by the protocol with the highest preference is selected.
Examples
# Set a preference of 150 for OSPFv3 routes.
<Sysname> system-view
[Sysname] OSPFv3
[Sysname-OSPFv3-1] preference 150
3.1.33 router-id
Syntax
router-id router-id
undo router-id
View
OSPFv3 view
Parameters
router-id: 32-bit router ID, in IPv4 address format.
Description
Use the router-id command to configure the OSPFv3 router ID.
Use the undo router-id command to remove a configured router ID.
Router ID is the unique identifier of a device running an OSPFv3 process in the
autonomous system. The OSPFv3 process cannot run without a Router ID.
Make sure that different processes have different Router IDs.
Related commands: ospfv3.
Note:
By configuring different router IDs for different processes, you can run multiple OSPFv3
processes on a router.
Chapter 3 IPv6 OSPFv3 Configuration Commands
3-36