Avaya Configuring IP Services Bedienungsanleitung Seite 140

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Configuring IP Services
5-10 114065 Rev. A
Configuring the Soloist and Backup Soloist on a Slot
The OSPF protocol is implemented as a soloist -- that is, as a single process
running on a single slot of a router. When you add an OSPF interface to a circuit,
the router enables OSPF on a slot. If the slot on which the OSPF soloist is running
goes down, the router will attempt to run OSPF on another slot.
Each time the OSPF soloist is restarted, all of the routing information is lost and
must be relearned from the network. The OSPF backup soloist provides a method
of preserving information learned from the network in the event of an OSPF crash
or slot removal, avoiding the time-consuming and resource-intensive process of
relearning routing information. In the event of a crash or slot removal, transition
between the OSPF primary and backup soloist occurs without relearning routing
information from the network.
By default, the router uses any available slot for the OSPF soloist. You can use
Site Manager to specify the slot or slots or which the OSPF soloist runs.
By default, OSPF does not maintain a copy of the link state database (LSDB) for
the backup soloist. You can use Site Manager to maintain an LSDB for the
backup.
Site Manager: OSPF Slot parameter: page A-75
Site Manager: Backup Enable parameter: page A-75
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