Extreme Networks ExtremeWare 7.3.0, Command Reference Manual

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1308 ExtremeWare Software 7.3.0 Command Reference Guide
IGP Commands
configure ospf routerid
configure ospf routerid [automatic | <routerid>]
Description
Configures the OSPF router ID. If automatic is specified, the switch uses the highest IP interface address
as the OSPF router ID.
Syntax Description
Default
Automatic.
Usage Guidelines
Each switch that is configured to run OSPF must have a unique router ID. It is recommended that you
manually set the router ID of the switches participating in OSPF, instead of having the switch
automatically choose its router ID based on the highest interface IP address. Not performing this
configuration in larger, dynamic environments could result in an older link-state database remaining in
use.
NOTE
Do not set the router ID to 0.0.0.0.
The implementation of the configure ospf routerid command has been augmented to support automatic
advertisement of a label mapping for the OSPF router ID. A label is advertised for the OSPF router ID
regardless of whether OSPF distributes a route for the router ID IP address in its router LSA.
To support the use of indirect LSPs, Extreme LSRs automatically advertise a label mapping for a /32
LSP to its OSPF router ID (configured using the configure ospf routerid command).
Example
The following command sets the router ID:
configure ospf routerid 10.1.6.1
History
This command was available in ExtremeWare 2.0.
This command was modified in an ExtremeWare IP Technology Services Release based on ExtremeWare
v6.1.8b12 to support MPLS modules.
automatic Specifies to use automatic addressing.
routerid Specifies a router address.