OSPFv3

This chapter covers some aspects related to the protocols ospfv3 which is a feature that allows users to manage and monitor the OSPFv3 protocol.

OSPF (Open Shortest Path First) version 3 for IPv6 protocol is a routing protocol described in RFC 2740.

Configuration

The OSPFv3 protocol can be configured either using protocols ospfv3 or in an interface using , interfaces <type> <txt> ipv6 ospfv3, for example, interfaces dummy <txt> ipv6 ospfv3 or interfaces ethernet <txt> ipv6 ospfv3.

In OSDx, the OSPFv3 configuration allows various parameters to be set to fine-tune the protocol’s behavior.

An explanation of each configurable parameter in protocols ospfv3 configuration is provided below:

  • area: Summarize a group of internal subnets into a single Inter-Area-Prefix LSA. This command can only be used at the area boundary router (ABR).

    • export-list: Networks announced to other areas.

    • import-list: Networks from other areas announced to the specified one.

    • range: It summarizes routes matching prefix (border routers only). This parameter includes advertise and not-advertise.

  • auto-cost: Calculate OSPFv3 interface cost according to bandwidth.

    • reference-bandwidth: Reference bandwidth method to assign OSPFv3 cost in Mbits/sec.

  • default-information: Control distribution of default information.

    • originate: Distribute a default route. This parameter includes always, to always advertise default route; metric, default metric; metric-type, metric type for default routes; and route-map, route map reference.

  • log-adjacency-changes: Allows log changes in adjacency state. With the optional argument detail, all adjacency state changes are displayed, without it, only full changes or regressions are shown.

  • paremeters: OSPFv3 specific parameters. Includes the argument router-id.

  • redistribute: Redistribute information from another routing protocol. This parameter includes the following arguments: bgp, connected, kernel, ripng and static. These five arguments include metric, the metric for redistributed routes; metric-type, OSPFv3 metric type; and route-map, a route map reference.

  • route-map: Filter routes installed in local route map.

An explanation of each configurable parameter of OSPFv3 in an interface configuration is provided below:

  • area: Summarize a group of internal subnets into a single Inter-Area-Prefix LSA.

  • authentication: OSPFv3 interface authentication. Includes md5 and hmac-sha-256, each of them with their password.

  • bfd: Enables Bidirectional Forwarding Detection on an interface. Includes the optional argument profile.

  • cost: Specifies an interface cost.

  • dead-interval: Interval after which neighbor is dead.

  • hello-interval: Interval between hello packets.

  • ifmtu: Interface MTU value.

  • instance-id: Instance identifier.

  • mtu-ignore: Disables Maximum Transmission Unit (MTU) mismatch detection.

  • network: Specifies network type: broadcast, or point-to-point.

  • passive: Disables forming of adjacency.

  • priority: Router priority.

  • retransmit-interval: Interval between retransmitting lost link state advertisements.

  • transmit-delay: Link state transmit delay in seconds.

Monitoring

To monitor the status and configuration of OSPFv3 protocol, you can use the following commands:

Examples

Here you can find examples related to OSPFv3.

Command Summary

Configuration commands

Operational commands