Setting The Dr Priority On An Ospf Interface - Huawei Quidway S3900 Series Operation Manual

Operation Manual – Routing Protocol
Quidway S3900 Series Ethernet Switches-Release 1510
Table 4-5 Set NBMA neighbor
Enter system view
Enter OSPF view
Set an NBMA neighbor

4.5.4 Setting the DR Priority on an OSPF Interface

You can control the DR/BDR election on a broadcast or NBMA network by configuring
the DR priorities of interfaces.
Table 4-6 Set the DR priority on an OSPF interface
Enter system view
Enter interface view
Set the DR priority on the
OSPF interface
Note:
The DR priorities configured by the ospf dr-priority command and the peer
command have different purpose:
The priority set with the ospf dr-priority command is used for actual DR election.
The priority set with the peer command is used to indicate if a neighbor has the
right to vote. If you specify the priority to 0 when configuring a neighbor, the local
router will believe that the neighbor has no right to vote and sends no Hello packet
to it. This configuration can reduce the number of Hello packets on the network
during the election of DR and BDR. However, if the local router is already a DR or
BDR, it will send Hello packets to the neighbor whose DR priority is 0 to establish
the neighboring relationship.
Operation
Operation
system-view
interface
interface-number
ospf dr-priority priority
Huawei Technologies Proprietary
Command
system-view
ospf [ process-id
[ router-id router-id ] ]
peer ip-address
[ dr-priority
dr-priority ]
Command
interface-type
4-15
Chapter 4 OSPF Configuration
Description
—
Required
Required
By default, the priority
for the neighbor of an
NBMA interface is 1.
Description
—
Required
Optional
The default DR priority
is 1.