ospfv3 cost

Function

The ospfv3 cost command sets a cost for an OSPFv3 interface.

The undo ospfv3 cost command restores the default cost.

By default, the cost of an OSPFv3 interface is calculated based on the interface bandwidth.

Format

ospfv3 cost value [ instance instanceId ]

undo ospfv3 cost [ value ] [ instance instanceId ]

Parameters

Parameter	Description	Value
value	Specifies the cost for running OSPFv3.	The value is an integer ranging from 1 to 65535.
instance instanceId	Specifies the ID of the instance to which an interface belongs.	The value is an integer ranging from 0 to 255.

Parameter

Description

Value

value

Specifies the cost for running OSPFv3.

The value is an integer ranging from 1 to 65535.

instance instanceId

Specifies the ID of the instance to which an interface belongs.

The value is an integer ranging from 0 to 255.

Views

100GE interface view, 10GE interface view, 25GE sub-interface view, 25GE interface view, 400GE interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk interface view, FlexE interface view, GE optical interface view, GE electrical interface view, Global VE sub-interface view, VBDIF interface view, VE sub-interface view, VLANIF interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ospf	write

Usage Guidelines

Usage Scenario

OSPFv3 can automatically calculate the link cost for an interface based on the interface bandwidth. You can also set the link cost for the interface using the ospfv3 cost commands.

Prerequisites

OSPFv3 has been enabled using the ospfv3 area command in the interface view.

Configuration Impact

The ospfv3 cost command cannot be run on null interfaces.

Precautions

If no cost is set for an OSPFv3 interface using the ospfv3 cost command, OSPFv3 automatically calculates its cost based on the interface bandwidth. The calculation formula is as follows: Cost of the interface = Bandwidth reference value/Interface bandwidth. The integer of the calculated result is the cost of the interface. If the calculated result is smaller than 1, the cost is 1. Changing the bandwidth reference value can change the cost of an interface.

Example

# Set the cost for instance 1 to run OSPFv3 to 33.

<HUAWEI> system-view
[~HUAWEI] ospfv3 1
[*HUAWEI-ospfv3-1] quit
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] ipv6 enable
[*HUAWEI-GigabitEthernet0/1/0] ospfv3 1 area 0 instance 1
[*HUAWEI-GigabitEthernet0/1/0] ospfv3 cost 33 instance 1