29 network area (ospf) – CANOGA PERKINS 9175 Command Reference User Manual

Page 234

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CanogaOS Command Reference

15-25

the number argument are the only options that are applicable.

This keyword does not apply to nonbroadcast multiaccess (NBMA)

networks.


Default

No configuration is specified.


Command Mode

Router configuration


Usage

One neighbor entry must be included in the switch configuration for each known nonbroadcast network

neighbor. The neighbor address must be on the primary address of the interface.

If a neighboring router has become inactive (hello packets have not been received for the Router Dead

Interval period), it may still be necessary to send hello packets to the dead neighbor. These hello

packets will be sent at a reduced rate called Poll Interval.

When the router first starts up, it sends only hello packets to those routers with nonzero priority, that is,

routers that are eligible to become designated routers (DRs) and backup designated routers (BDRs).

After the DR and BDR are selected, DR and BDR will then start sending hello packets to all neighbors in

order to form adjacencies.


Examples

The following example declares a router at address 192.168.3.4 on a nonbroadcast network, with a

priority of 1 and a poll interval of 180 seconds:

router ospf

neighbor 192.168.3.4 priority 1 poll-interval 180


Related Commands

ip ospf priority

15.29 network area (OSPF)

To define the interfaces on which Open Shortest Path First (OSPF) runs and to define the area ID for

those interfaces, use the network area command in router configuration mode. To disable OSPF routing

for interfaces defined with the address wildcard-mask pair, use the no form of this command.


Command Syntax

network {ip-address wildcard-mask | ip-address/prefix-length} area area-id

no network {ip-address wildcard-mask | ip-address/prefix-length} area area-id

ip-address IP address.

wildcard-mask

IP-address-type mask that includes “don’t care” bits.

prefix-length

Prefix length for the network.

area-id

Area that is to be associated with the OSPF address range. It can be

specified as either a decimal value or as an IP address.

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