Command Manual - Routing Protocol
Quidway S3500 Series Ethernet Switches
Chapter 3 OSPF Configuration Commands
Huawei Technologies Proprietary
3-43
z
If the Router ID changes, a new Router ID will take effect by executing the
command.
z
Re-elect DR and BDR conveniently.
z
OSPF configuration before the restart will not lose.
The system will require the user to confirm whether to re-enable the OSPF protocol
after execution of the command.
Example
# Reset all the OSPF processes.
<Quidway> reset ospf all
3.1.45 router id
Syntax
router id router-id
undo router id
View
System view
Parameter
router-id
: Router ID that is a 32-bit unsigned integer.
Description
Using
router id
command, you can configure the ID of a router running the OSPF
protocol. Using
undo router id
command, you can cancel the router ID that has been
set.
By default, if the LoopBack interface address exists, the system chooses the LoopBack
address with the greatest IP address value as the router ID; if no LoopBack interface
configured, then the address of the physical interface with the greatest IP address
value will be the router ID.
Router ID is a 32-bit unsigned integer that uniquely identifies a router in an OSPF
autonomous system. The user can specify the ID for a router. If the user doesn’t specify
router ID, the router will automatically select one from configured IP address as the ID
of this router. If no IP address is configured for any interface of the router, the router ID
must be configured in OSPF view. Otherwise, OSPF protocol cannot be enabled.
When the router ID is configured manually, the IDs of any two routers cannot be same
in the autonomous system. So, the IP address of certain interface might as well be
selected as the ID of this router.
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