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Configuring OSPFv3

OSPFv3 is the third version of Open Shortest Path First and mainly provides the support of IPv6. Before configuring OSPFv3, you need to enable IPv6 at Network > Interface > New, and configure an OSPFv3 interface. For how to configure the OSPFv3 interface, refer to Configuring an Interface.

The similarities between OSPFv3 and OSPFv2 are as follows:

  • Both protocols use 32 bits Router ID and Area ID.
  • Both protocols use the Hello packets, DD (database description) packets, LSR (link state request) packets, LSU (link state update) packets, and LSAck (link state acknowledgment) packets.
  • Both protocols use the same mechanisms of finding neighbors and establishing adjacencies.
  • Both protocols use the same mechanisms of LSA flooding and aging.

The differences between OSPFv3 and OSPFv2 are as follows:

  • OSPFv3 runs on a per-link basis and OSPFv2 is on a per-IP-subnet basis.
  • OSPFv3 supports multiple instances per link.
  • OSPFv3 identifies neighbors by Router ID, and OSPFv2 identifies neighbors by IP address.

You can configure the OSPFv3 protocol for each VRouter respectively.

Creating OSPFv3

To create the OSPFv3 process, take the following steps:

  1. Select Network > Routing > OSPFv3.
  2. Select a VR from the Virtual Router drop-down list.
  3. Click New, and the OSPFv3 Configuration dialog pops up.
  4. Click OK to save the configurations and the created OSPFv3 process will be displayed in the list.

Viewing Neighbor Information

To view the neighbor information of the created OSPFv3 process, take the following steps:

  1. Select Network > Routing > OSPFv3.
  2. Select an OSPFv3 process and the neighbor information will be displayed below.

    • Neighbor Router ID: Displays the ID of neighbor router.
    • Priority: Displays the router priority. The router priority is used to determine which router will act as the designated router. The designated router will receive the link information of all the other routers in the network, and send the received link information.
    • Link Local Address: Displays the Link-local of the neighbor router interface.
    • Neighbor State: Displays the OSPFv3 neighbor state. The OSPFv3 neighbor state includes 8 types: Down, Attempt, Init, 2-Way, Exstart, Exchange, Loading and Full. The Full state includes Full/DR and Full/BDR.
    • Timeout: Displays the neighbor timeout, which is the difference between dead time and hello transmission interval. The unit is second. If the OSPFv3 doesn't receive the Hello packets from neighbor, the neighbor ship cannot be established continually.
    • Local Interface: Displays the interface sending the Hello packets to the neighbor router.