NOTE
Brocade devices support numbered point-to-point networks, meaning the OSPF router must have an IP interface address
which uniquely identies the router over the network. Brocade devices do not support unnumbered point-to-point networks.
The broadcast option congures the network type as a broadcast connection. This is the default option for Ethernet, VE and Loopback
interfaces.
The non-broadcast option congures the network type as a non-broadcast connection. This allows you to congure the interface to send
OSPF trac to its neighbor as unicast packets rather than multicast packets. This can be useful in situations where multicast trac is not
feasible (for example when a rewall does not allow multicast packets).
On a non-broadcast interface, the routers at either end of this interface must congure non-broadcast interface type and the neighbor IP
address. There is no restriction on the number of routers sharing a non-broadcast interface (for example, through a hub/switch).
To congure an OSPF interface as a non-broadcast interface, you enable the feature on a physical interface or a VE, following the ip ospf
area statement, and then specify the IP address of the neighbor in the OSPF conguration. The non-broadcast interface conguration
must be done on the OSPF routers at either end of the link.
For example, the following commands congure VE 20 as a non-broadcast interface.
device(config)# interface ve 20
device(config-vif-20)# ip address 10.1.20.4/24
device(config-vif-20)# ip ospf area 0
device(config-vif-20)# ip ospf network non-broadcast
The following commands specify 10.1.20.1 as an OSPF neighbor address. The address
specied must be in the same sub-net as the
non-broadcast interface.
device(config)# router ospf
device(config-ospf-router)# neighbor 10.1.20.1
For example, to congure the feature in a network with three routers connected by a hub or switch, each router must have the linking
interface congured as a non-broadcast interface, and the two other routers must be specied as neighbors.
Conguring OSPF Graceful Restart
OSPF Graceful Restart can be enabled in the following congurations:
• Conguring OSPF Graceful Restart for the Global Instance - In this conguration all OSPF neighbors other than those used
by VRFs are made subject to the Graceful Restart capability. The restart timer set globally does not apply to Graceful Restart on
a congured VRF.
• Conguring OSPF Graceful Restart per VRF - In this conguration all OSPF neighbors for the specied VRF are made
subject to the Graceful Restart capability. The restart timer set for a specic VRF only applies to that VRF.
Conguring OSPF Graceful Restart for the global instance
OSPF Graceful restart can be
congured for the global instance or for a specied Virtual Routing and Forwarding (VRF) instance.
Conguring OSPF Graceful restart for the global instance does not congure it for any VRFs. The following sections describe how to
enable the OSPF graceful restart feature for the global instance on a device.
Use the following command to enable the graceful restart feature for the global instance on a device.
device(config)# router ospf
device(config-ospf-router)# graceful-restart
Syntax: [no] graceful-restart
OSPF distribute list
FastIron Ethernet Switch Layer 3 Routing
53-1003627-04 267
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