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tag tag-value (OPTIONAL) Enter the keyword tag to set the tag for routes redistributed into
OSPF. The range is from 0 to 4294967295.
Defaults Not configured.
Command Modes ROUTER OSPF
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
router-id
To configure a fixed router ID, use this command.
Syntax
router-id ip-address
To remove the fixed router ID, use the no router-id ip-address command.
Parameters
ip-address Enter the router ID in the IP address format.
Defaults none.
Command Modes ROUTER OSPF
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
You can configure an arbitrary value in the IP address format for each router. However, each router ID
must be unique. If you use this command on an OSPF router process, which is already active (that is, has
neighbors), a prompt reminding you that changing the router-id brings down the existing OSPF adjacency.
The new router ID is effective at the next reload.
Example
Dell(conf)#router ospf 100
Dell(conf-router_ospf)#router-id 1.1.1.1
Changing router-id will bring down existing OSPF adjacency [y/n]:
Dell(conf-router_ospf)#show config
!
router ospf 100
router-id 1.1.1.1
Dell(conf-router_ospf)#no router-id
Changing router-id will bring down existing OSPF adjacency [y/n]:
Dell#
router ospf
To configure an OSPF instance, enter ROUTER OSPF mode.
Syntax
router ospf process-id
To clear an OSPF instance, use the no router ospf process-id command.
834 Open Shortest Path First (OSPFv2 and OSPFv3)