Black Box LRU4240 - Manual (Page 194)

182 SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
Dual Trunk E1 Router
ospfd# configure terminal
ospfd(config)# interface fxp0
ospfd(config-if)# ospf hello-interval 3 10.10.10.50
Equivalent Commands
ip ospf hello-interval
ospf network
Use the ospf network command to configure the OSPF network type to a type other than the default for a given medium.
Use the no form of this command to return to the default value.
Command Syntax
ospf network broadcast|non-broadcast|point-to-multipoint|point-to-point
no ospf network
broadcast Specifies OSPF braodcast as a multi-access network.
non-broadcast Sets the network type to NBMA.
point-to-multipoint Sets the network type to point-to-multipoint.
point-to-point Sets the network type to point-to-point.
Default
The default is the broadcast type.
Command Mode
Interface mode
Usage
Use ospf network command to configure broadcast networks as nonbroadcast multiaccess networks (NBMA) and vice versa. You
would need to do this if you have routers in your network that do not support multicast addressing.
The ospf network command saves you from having to configure neighbors. Configuring NBMA networks requires a fully meshed
network or a virtual circuit connecting every router. In case the network is not fully meshed, configure the OSPF network type as
a point-to -multipoint network. Routing between two routers that are not directly connected will go through the router that has
virtual circuits to both routers.
Examples
The following example shows setting the network to point-to-point type on the fxp0 interface.
ospfd# configure terminal
ospfd(config)# interface fxp0
ospfd(config-if)# ospf network point-to-point
Equivalent Commands
ip ospf network
ospf priority
Use the ospf priority command to set the router priority, which helps determine the designated router for this network.
Use the no form of this command to return to the default value.
Command Syntax
ospf priority <1-255>
no ospf priority
Default
The default priority is 1.
Command Mode
Interface mode
Usage
Set the priority to help determine the OSPF Designated Router (DR) for a network. If two routers attempt to become the DR, the
router with the higher router priority becomes the DR. If the router priority is the same for two routers, the router with the higher
router ID becomes DR.
Only a router with a nonzero router priority value is eligible to become the designated or backup designated router.
Configure router priority for multiaccess networks only, and not for point-to-point networks.
Examples
The following example shows setting the OSPF priority value to 3 on the fxp0 interface for IP address 10.10.10.50.