Reference Guide

Version 7.8.1.0 Added support for Multi-Process OSPF.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
6.1.1.1
Introduced on the E-Series.
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
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#
router ospf
To configure an OSPF instance, enter ROUTER OSPF mode.
Z9000
Syntax
router ospf process-id [vrf {vrf name}]
To clear an OSPF instance, use the no router ospf process-id command.
Parameters
process-id Enter a number for the OSPF instance. The range is from 1 to 65535.
vrf name (Optional) E-Series Only: Enter the VRF process identifier to tie the
OSPF instance to the VRF. All network commands under this OSPF
instance are then tied to the VRF instance.
Defaults Not configured.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 9.1(0.0) Added support for OSPFv3 on the S4810 and Z9000.
Version 8.3.19.0 Introduced on the S4820T.
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