3com S7906E Guide De Référence

Page de 2327
 
1-37 
Description 
Use the preference command to specify a preference for OSPFv3 routes. 
Use the undo preference command to restore the default. 
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 
router-id 
Syntax 
router-id router-id 
undo router-id 
View 
OSPFv3 view 
Default Level 
2: System level 
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.  
 
 
By configuring different router IDs for different processes, you can run multiple OSPFv3 processes on a 
router.