Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.112.1P1 - Page 620

The OSPF process ID is the identifying number assigned to the OSPF process. The router ID is the IP address associated with the OSPF process. After the OSPF process and the VRF are tied together, the OSPF process ID cannot be used again in the system. If you try to enter an OSPF process ID, or if you try to enable more OSPF processes than available Layer 3 interfaces, prior to assigning an IP address to an interface and setting the no shutdown command, the following message displays: Dell(conf)#router ospf 1 % Error: No router ID available. Assigning a Router ID In CONFIGURATION ROUTER OSPF mode, assign the router ID. The router ID is not required to be the router's IP address. However, Dell Networking recommends using the IP address as the router ID for easier management and troubleshooting. Optional process-id commands are also described. • Assign the router ID for the OSPFv2 process. CONFIG-ROUTER-OSPF-id mode router-id ip address • Disable OSPF. CONFIGURATION mode no router ospf process-id • Reset the OSPFv2 process. EXEC Privilege mode clear ip ospf process-id • View the current OSPFv2 status. EXEC mode show ip ospf process-id Example of Viewing the Current OSPFv2 Status Dell#show ip ospf 55555 Routing Process ospf 55555 with ID 10.10.10.10 Supports only single TOS (TOS0) routes SPF schedule delay 5 secs, Hold time between two SPFs 10 secs Number of area in this router is 0, normal 0 stub 0 nssa 0 Dell# Enabling Multi-Process OSPF (OSPFv2, IPv4 Only) Multi-process OSPF allows multiple OSPFv2 processes on a single router. For more information, refer to Multi-Process OSPF (OSPFv2, IPv4 Only) When configuring a single OSPF process, follow the same steps previously described. Repeat them as often as necessary for the desired number of processes. After the process is created, all other configurations apply as usual. 1 Assign an IP address to an interface. CONFIG-INTERFACE mode ip address ip-address mask Format: A.B.C.D/M. 620 Open Shortest Path First (OSPFv2 and OSPFv3)