1304 CHAPTER 84: IPV6 OSPFV3 CONFIGURATION COMMANDS

Parameters seconds: Transmission delay in seconds, ranging from 1 to 3600. The default is 1.

instance-id: The instance ID of an interface, in the range of 0 to 255, with the default as 0.

Description Use the ospfv3 trans-delaycommand to configure the transmission delay for an interface with an instance ID.

Use the undo ospfv3 trans-delaycommand to restore the default.

The transmission delay defaults to 1s.

As LSAs are aged in the LSDB (incremented 1 by each second) but not aged on transmission, it is necessary to add a delay time to the age time before sending a LSA. This configuration is important for low-speed networks.

Examples # Configure the transmission delay as 3 seconds for an interface of instance 1.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] ospfv3 trans-delay 3 instance 1

preference

Syntax

preference [ ase ] [ route-policy route-policy-name] preference

 

undo preference [ ase ]

View

OSPFv3 view

Parameters

ase: Applies the preference to OSPFv3 external routes. If the keyword is not

 

specified, the preference applies to OSPFv3 internal routes.

 

route-policyroute-policy-name: References a routing policy to set preference for

 

specific routes. The name is a string of 1 to 19 characters.

 

preference: Preference of OSPFv3, in the range 1 to 255.

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.

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3Com MSR 30, MSR 50 manual Preference ase route-policy route-policy-name preference