Cisco MWR 2941 Installation Manual download pdf (Page 259)

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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR

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Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR

neighbor (OSPF)

Usage Guidelines X.25 and Frame Relay provide an optional broadcast capability that can be configured in the map to

allow OSPF to run as a broadcast network. At the OSPF level you can configure the router as a broadcast

network. Refer to the x25 map and frame-relay map commands in the “X.25 Commands” and “Frame

Relay Commands” chapters, respectively, in the Cisco IOS Wide-Area Networking Command Reference

for more detail.

One neighbor entry must be included in the Cisco IOS software 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.

Note You cannot use the neighbor (OSPF) command to specify an Open Shortest Path First (OSPF) neighbor

on non-broadcast networks within an OSPF Virtual Private Network (VPN) routing instance.

Prior to Cisco IOS Release 12.0, the neighbor command applied to NBMA networks only. With

Release 12.0, the neighbor command applies to NBMA networks and point-to-multipoint networks. On

NBMA networks, the cost keyword is not accepted.

Release 12.2(33)SRB

If you plan to configure the Multi-Topology Routing (MTR) feature, you need to enter the neighbor

command in router address family topology configuration mode in order for this OSPF router

configuration command to become topology-aware.

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

The following example illustrates a point-to-multipoint network with nonbroadcast:

interface Serial0

ip address 10.0.1.1 255.255.255.0

ip ospf network point-to-multipoint non-broadcast

encapsulation frame-relay

no keepalive

frame-relay local-dlci 200

frame-relay map ip 10.0.1.3 202

frame-relay map ip 10.0.1.4 203

frame-relay map ip 10.0.1.5 204

no shut

12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.

15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.

Release Modification

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