Dell S4048-ON, Configuration Manual

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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#
Assigning an OSPFv2 Area
After you enable OSPFv2, assign the interface to an OSPF area. Set up OSPF areas and enable OSPFv2 on an interface with the
network
command.
You must have at least one AS area: Area 0. This is the backbone area. If your OSPF network contains more than one area, configure
a backbone area (Area ID 0.0.0.0). Any area besides Area 0 can have any number ID assigned to it.
The OSPFv2 process evaluates the
network
commands in the order they are configured. Assign the network address that is most
explicit first to include all subnets of that address. For example, if you assign the network address 10.0.0.0 /8, you cannot assign the
network address 10.1.0.0 /16 because it is already included in the first network address.
When configuring the
network
command, configure a network address and mask that is a superset of the IP subnet configured on
the Layer-3 interface for OSPFv2 to use.
You can assign the area in the following step by a number or with an IP interface address.
• Enable OSPFv2 on an interface and assign a network address range to a specific OSPF area.
CONFIG-ROUTER-OSPF-id mode
network ip-address mask area area-id
The IP Address Format is A.B.C.D/M.
The area ID range is from 0 to 65535 or A.B.C.D/M.
Enable OSPFv2 on Interfaces
Enable and configure OSPFv2 on each interface (configure for Layer 3 protocol), and not shutdown.
You can also assign OSPFv2 to a Loopback interface as a virtual interface.
Open Shortest Path First (OSPFv2 and OSPFv3)
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