Dell S5148F-ON OS10 Enterprise Edition User Guide Release 10.3.2E-R2 - Page 261

OSPF route limit OS10 supports up to 16,000 OSPF routes. Within this range, the only restriction is on intra-area routes that scale only up to 100 routes. Other OSPF routes can scale up to 16 K. OSPFv2 OSPFv2 supports IPv4 address families. OSPFv2 routers initially exchange hello messages to set up adjacencies with neighbor routers. The hello process establishes adjacencies between routers of the AS. It is not required that every router within the AS areas establish adjacencies. If two routers on the same subnet agree to become neighbors through this process, they begin to exchange network topology information in the form of LSAs. In OSPFv2, neighbors on broadcast and non-broadcast multiple access (NBMA) network links are identified by their interface addresses, while neighbors on other types of links are identified by router-identifiers (RID). Enable OSPFv2 OSPFv2 is disabled by default. Configure at least one interface as either physical or LOOPBACK and assign an IP address to the interface. You can assign any area besides area 0 a number ID. The OSPFv2 process starts automatically when you configure it globally and you can enable it for one or more interfaces. 1 Enable OSPF globally and configure an OSPF instance in CONFIGURATION mode. router ospf instance-number 2 Enter the interface information to configure the interface for OSPF in INTERFACE mode. interface ethernet node/slot/port[:subport] 3 Enable the interface in INTERFACE mode. no shutdown 4 Disable the default switchport configuration and remove it from an interface or a LAG port in INTERFACE mode. no switchport 5 Assign an IP address to the interface in INTERFACE mode. ip address ip-address/mask 6 Enable OSPFv2 on an interface in INTERFACE mode. ip ospf process-id area area-id • process-id-Enter the OSPFv2 process ID for a specific OSPF process from 1 to 65535. • area-id-Enter the OSPFv2 area ID as an IP address (A.B.C.D) or number from 1 to 65535. Enable OSPFv2 configuration OS10(config)# router ospf 100 OS10(conf-router-ospf-100)# exit OS10(config)# interface ethernet 1/1/1 OS10(conf-if-eth1/1/1)# no shutdown OS10(conf-if-eth1/1/1)# no switchport OS10(conf-if-eth1/1/1)# ip address 11.1.1.1/24 OS10(conf-if-eth1/1/1)# ip ospf 100 area 0.0.0.0 View OSPFv2 configuration OS10# show running-configuration ospf ! interface ethernet1/1/1 ip ospf 100 area 0.0.0.0 ! router ospf 100 ... Layer 3 261