6.To specify the order in which next hops are selected, enter a value from one to eight in the Preference text box. The lower the value the more preferred the link.

The next preferred value is selected as the next hop only when an interface fails. A non- reachable link is not selected as the next hop.

The preference option also supports equal-cost multipath routing. For each preference value, you can configure as many as eight gateway addresses. The nexthop gate address for each packet to the destination is selected based on the nexthop algorithm that is configured.

7.Click Apply.

8.Click Save to make your changes permanent.

Routing Configuration

Configuring OSPFv3

IPSO supports OSPFv3, which supports IPv6 addressing and is based on RFC 2740. OSPFv3 has essentially the same configuration parameters as OSPFv2, except that you enter them from the Network Voyager page that you access by clicking Routing Configuration under Configuration > System Configuration > IPv6 Configuration in the tree view. For more information, see “OSPF” on page 353.

Configuring RIPng

1.Click RIPng under Configuration > System Configuration > IPv6 Configuration > Routing Configuration in the tree view.

2.To enable RIPng, click On next to the logical interface on which you want to run RIP, and then click Apply.

3.Enter a value in the Metric text box for the RIPng metric to be added to routes that are sent by way of the specified interface.

4.Click Apply.

5.Click Save to make your changes permanent.

Creating IPv6 Aggregate Routes

1.Click IPv6 route Aggregation under Configuration > System Configuration > IPv6 Configuration > Routing Configuration in the tree view.

2.Enter the IPv6 prefix for the new aggregate route in the Prefix for New Aggregate text box.

3.Enter the mask length (number of bits) in the Mask Length text box.

4.Click Apply.

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Nokia IPSO 4.0 manual Routing Configuration, Configuring OSPFv3, Configuring RIPng, Creating IPv6 Aggregate Routes