The ipv6 bandwidth-reference command sets the bandwidth reference value used in automatic interface cost calculation on an IPv6 network.
The undo ipv6 bandwidth-reference command restores the default setting.
By default, the bandwidth reference value is 100 Mbit/s.
| Parameter | Description | Value |
|---|---|---|
bandwidth-reference-value |
Specifies the bandwidth reference value used in automatic interface cost calculation. |
The value is an integer that ranges from 1 to 2147483648, in Mbit/s. |
Usage Scenario
To make the link cost of IS-IS routes reflect the actual link cost, configure a proper link cost for all interfaces or enable the automatic interface cost calculation function. To enable automatic interface cost calculation, set a proper bandwidth reference value.
You can run the ipv6 bandwidth-reference command to set a proper reference bandwidth value. After the automatic interface cost calculation function is enabled, the system automatically calculates the interface cost according to the bandwidth reference value set using the command.
The bandwidth bandwidth command can only set an interface bandwidth obtained by the NMS from the MIB. It cannot change an interface actual bandwidth and interface cost.
Precautions
The ipv6 bandwidth-reference command takes effect only after IPv6 is enabled for the IS-IS process using the ipv6 enable command.