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Configuring OSPFv3 Configuring OSPFv3
OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide December 2007 page 2-17
Modifying Interface Parameters
There are several interface parameters that can be modified on a specified interface. Most of these deal
with timer settings.
The cost parameter and the priority parameter help to determine the cost of the route using this interface,
and the chance that this interface’s router will become the designated router, respectively.
The following table shows the various interface parameters that can be set:
These parameters can be added any time. (See “Creating OSPFv3 Interfaces” on page 2-16 for more infor-
mation.) For example, to set the dead interval to 50 and the cost to 100 on interface vlan-213, enter the
following:
-> ipv6 ospf interface vlan-213 dead-interval 50 cost 100
To set the poll interval to 25, the priority to 100, and the retransmit interval to 10 on interface
vlan-213, enter the following:
-> ipv6 ospf interface vlan-213 poll-interval 25 priority 100 retrans-interval
10
To set the hello interval to 5000 on interface vlan-213, enter the following:
-> ipv6 ospf interface vlan-213 hello-interval 5000
Creating Virtual Links
To create a virtual link, commands must be submitted to the routers at both ends of the link. The router
being configured should point to the other end of the link, and both routers must have a common area.
When entering the ipv6 ospf virtual-link command, it is necessary to enter the Router ID of the far end of
the link, and the area ID that both ends of the link share.
For example, a virtual link needs to be created between Router A (router ID 1.1.1.1) and Router B (router
ID 2.2.2.2). We must:
1 Establish a transit area between the two routers using the commands discussed in “Creating an OSPFv3
Area” on page 2-15 (in this example, we will use Area 0.0.0.1).
ipv6 ospf interface dead-interval Configures the OSPFv3 interface dead interval. If no hello packets are
received in this interval from a neighboring router, the neighbor is
considered dead.
ipv6 ospf interface hello-interval Configures the OSPFv3 hello interval.
ipv6 ospf interface cost Configures the OSPFv3 interface cost. A cost metric refers to the net-
work path preference assigned to certain types of traffic.
ipv6 ospf interface priority Configures the OSPFv3 interface priority. The priority number helps
determine if this router will become the designated router.
ipv6 ospf interface retrans-
interval
Configures the OSPFv3 interface retransmit interval. The number of
seconds between link state advertisement retransmissions for adjacen-
cies
belonging to this interface.
ipv6 ospf interface transit-delay Configures the OSPFv3 interface transit delay. The estimated number
of seconds required to transmit a link state update over this interface.