Configuring Additional Metrics of an Interface
Context
Configuring the additional metrics on a RIPng interface can change the route selection sequence.
The additional metric is the metric (hop count) to be added to the original metric of a RIPng route. You can specify commands to set additional metrics for incoming and outgoing RIPng routes.
Procedure
- Run system-view
The system view is displayed.
- Run interface interface-type interface-number
The interface view is displayed.
- On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.
If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.
- Run the following commands as required:
- Run the ripng metricin value command to set the additional metric for receiving routes. By default, an interface does not add the metric to a received RIPng route.
- Run the ripng metricout { value | { acl6-number | acl6-name acl6-name | ipv6-prefix ipv6-prefix-name } value1 } command to set the additional metric for advertising routes. By default, the metric that is added to the RIPng route sent by an interface is 1.
- The ripng metricin command is used to add an additional metric to an incoming route. After this route is added to the routing table, its metric in the routing table changes. Running this command affects route selection on the local device and other devices on the network.
- The ripng metricout command is used to add an additional metric to an outgoing route. When this route is advertised, an additional metric is added to this route, but the metric of the route in the routing table does not change. Running this command does not affect route selection on the local device but other devices on the network.
- Run commit
The configuration is committed.
