Huawei Quidway S3500 Series User Manual

Operation Manual - Routing Protocol
Quidway S3500 Series Ethernet Switches Chapter 4 OSPF Configuration
Huawei Technologies Proprietary
4-8
Table 4-5 Configuring a Network Type on the Interface That Starts OSPF Protocol
Operation Command
Configure network type on the interface
ospf network-type { broadcast | nbma
| p2mp | p2p }
After the interface has been configured with a new network type, the original network
type of the interface is removed automatically.
4.2.6 Configuring the Cost for Sending Packets on an Interface
The user can control the network traffic by configuring different message sending costs
for different interfaces. Otherwise, OSPF will automatically calculate the cost according
to the baud rate on the current interface.
Perform the following configuration in Interface view:
Table 4-6 Configuring the cost for sending packets on Interface
Operation Command
Configure the cost for sending packets on Interface
ospf cost value
Restore the default cost for packet transmission on the
Interface
undo ospf cost
For S3500 series switches,the default cost for running OSPF protocol of on the VLAN
interface is 10.
4.2.7 Setting the Interface Priority for DR Election
The priority of the router interface determines the qualification of the interface in DR
election, and the router of higher priority will be considered first if there is a collision in
the election.
DR is not designated manually; instead, it is elected by all the routers on the segment.
Routers with the priorities > 0 in the network are eligible “candidates”. Among all the
routers self-declared to be the DR, the one with the highest priority will be elected. If
two routers have the same priority, the one with the highest router ID will be elected as
the DR. Votes are the hello packets. Each router writes the expected DR in the packet
and sends it to all the other routers on the segment. If two routers attached to the same
segment concurrently declare themselves to be the DR, choose the one with higher
priority. If the priorities are the same, choose the one with greater router ID. If the
priority of a router is 0, it will not be elected as DR or BDR.
If DR fails due to some faults, the routers on the network must elect a new DR and
synchronize with the new DR. The process will take a relatively long time, during which,
the route calculation is incorrect. In order to speed up this process, OSPF puts forward

Huawei Quidway S3500 Series Specifications

General

Brand	Huawei
Model	Quidway S3500 Series
Category	Network Router
Language	English