Router-id, Compatible rfc1583, Router-id 42-20 compatible rfc1583 – LevelOne GTL-2690 User Manual

Page 733

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IP Routing Commands

42-20

42

router-id

This command assigns a unique router ID for this device within the autonomous
system. Use the no form to use the default router identification method (i.e., the
lowest interface address).

Syntax

router-id

ip-address

no router-id

ip-address - Router ID formatted as an IP address.

Command Mode

Router Configuration

Default Setting

Lowest interface address

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 the router ID you cannot be set 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
(page 42-19) 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 (42-19)

compatible rfc1583

This command calculates summary route costs using RFC 1583 (early OSPFv2).
Use the no form to calculate costs using RFC 2328 (OSPFv2).

Syntax

[no] compatible rfc1583

Command Mode

Router Configuration

Default Setting

RFC 1583 compatible

Console(config-router)#router-id 10.1.1.1
Console(config-router)#

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