Reference Guide

662 | Open Shortest Path First (OSPFv2)
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Usage
Information
IS-IS is not supported on S-Series platforms.
router-id
z
Use this command to configure a fixed router ID.
Syntax
router-id ip-address
To remove the fixed router ID, use the no router-id ip-address command.
Parameters
Defaults
This command has no default behavior or values.
Command Modes
ROUTER OSPF
Command
History
Example
Figure 29-2. Command Example: router-id
FTOS(conf)#router ospf 100
FTOS(conf-router_ospf)#router-id 1.1.1.1
Changing router-id will bring down existing OSPF adjacency [y/n]:
FTOS(conf-router_ospf)#show config
!
router ospf 100
router-id 1.1.1.1
FTOS(conf-router_ospf)#no router-id
Changing router-id will bring down existing OSPF adjacency [y/n]:
FTOS#
Usage
Information
You can configure an arbitrary value in the IP address format for each router. However, each router ID
must be unique. If this command is used on an OSPF router process, which is already active (that is,
has neighbors), a prompt reminding you that changing router-id will bring down the existing OSPF
adjacency. The new router ID is effective at the next reload
router ospf
z
Enter the ROUTER OSPF mode to configure an OSPF instance.
Syntax
router ospf process-id [vrf {vrf name}]
To clear an OSPF instance, enter no router ospf process-id.
S6000
ip-address
Enter the router ID in the IP address format
Version 9.0.2.0 Introduced on S6000.
Version 8.3.11.1 Introduced on Z9000
Version 7.8.1.0 Introduced support for Multi-Process OSPF.
S6000