Ospf Network Type Configuration; Configuring The Network Type Of An Ospf Interface - H3C S7500 Series Operation Manual

Operation Manual – Routing Protocol
H3C S7500 Series Ethernet Switches
Note:
You must use the stub command on all the routers connected to a stub area to
configure the area with the stub attribute.
You must use the nssa command on all the routers connected to an NSSA area to
configure the area with the NSSA attribute.

4.5 OSPF Network Type Configuration

OSPF divides networks into four types by link layer protocol. See section
"OSPF Network
routers in the network must be directly reachable to each other through a virtual circuit.
However, in many cases, this cannot be implemented and you need to use a
command to change the network type forcibly.
Configure the interface type as P2MP if not all the routers are directly accessible on
an NBMA network. Change the interface type to P2P if the router has only one peer on
the NBMA network.
In addition, when configuring a broadcast network or NBMA network, you can also
specify DR priority for each interface to control the DR/BDR selection in the network.
Thus, the router with higher performance and reliability can be selected as a DR or
BDR.
4.5.1 Configuration Prerequisites
Before configuring the network type of an OSPF interface, perform the following
tasks:
Configuring the network layer address of the interface so that adjacent nodes are
reachable at network layer
Performing basic OSPF configuration

4.5.2 Configuring the Network Type of an OSPF Interface

Follow these steps to configure the network type of an OSPF interface:
Enter system view
Enter interface view
Types". An NBMA network must be fully connected. That is, any two
To do...
system-view
interface interface-type
interface-number
Use the command...
4-13
Chapter 4 OSPF Configuration
Remarks
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4.1.4