H3C Technologies H3C S5560 Series Switches - Manual (Page 388)

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• Configure a bandwidth reference value for the interface, and OSPFv3 computes the cost
automatically based on the bandwidth reference value by using the following formula:
Interface OSPFv3 cost = Bandwidth reference value (100 Mbps) / Interface bandwidth (Mbps)
{
If the calculated cost is greater than 65535, the value of 65535 is used.
{
If the calculated cost is smaller than 1, the value of 1 is used.
• If no cost is configured for an interface, OSPFv3 automatically computes the cost for the interface.
To configure an OSPFv3 cost for an interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure an OSPFv3
cost for the interface. ospfv3 cost value [ instance
instance-id ]
By default, the OSPFv3 cost is 1 for a VLAN
interface, is 0 for a loopback interface. The
OSPFv3 cost is automatically computed
according to the interface bandwidth for other
interfaces.
To configure a bandwidth reference value:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter OSPFv3 view.
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
N/A
3. Configure a bandwidth
reference value.
bandwidth-reference value The default setting is 100 Mbps.
Configuring the maximum number of OSPFv3 ECMP routes
Perform this task to implement load sharing over ECMP routes.
To configure the maximum number of ECMP routes:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter OSPFv3 view.
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
N/A