Command Line Interface
4-266
4
Command Usage
• The router ID must be unique for every router in the autonomous system.
Using the default setting based on the lowest interface address ensures that
each router ID is unique. Also, note that you cannot set the router ID to 0.0.0.0
or 255.255.255.255.
• If this router already has registered neighbors, the new router ID will be used
when the router is rebooted, or manually restarted by entering the no router
ospf followed by the router ospf command.
• If the priority values of the routers bidding to be the designated router or
backup designated router for an area are equal, the router with the highest ID
is elected.
Example
Related Commands
router ospf (4-265)
compatible rfc1583
This command calculates summary route costs using RFC 1583 (OSPFv1). Use the
no form to calculate costs using RFC 2328 (OSPFv2).
Syntax
[no] compatible rfc1583
Command Mode
Router Configuration
Default Setting
RFC 1583 compatible
Command Usage
All routers in an OSPF routing domain should use the same RFC for
calculating summary routes.
Example
Console(config-router)#router-id 10.1.1.1
Console(config-router)#
Console(config-router)#compatible rfc1583
Console(config-router)#
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