Configuring Network Types For Ospf Interfaces - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
Network Type
Point-to-
multipoint (P2MP)
As shown in
Therefore, the difference between OSPF configurations on the networks lies in the packet
sending configurations.
Pre-configuration Tasks
Before configuring OSPF on the NBMA or P2MP network, complete the following tasks:
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Data Preparation
To configure OSPF on the NBMA or P2MP network, you need the following data.
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4.4.2 Configuring Network Types for OSPF Interfaces

OSPF classifies networks into four types based on the types of link layer protocols. You can
configure the network type for an OSPF interface to forcibly change its original network type.
Context
By default, the physical interface type determines the network type.
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Issue 01 (2012-03-15)
Characteristic
On a P2MP network, Hello
packets are multicasted; DD
packets, LSR packets, LSU
packets, and LSAck packets are
unicasted.
The mask lengths of the switches
on the P2MP network must be the
same.
Table 4-1, OSPF sends packets in different manners on networks of different types.
Configuring IP addresses for interfaces to ensure that neighboring switches are reachable
at the network layer
Configuring Basic OSPF Functions
Data
Number of the interface running OSPF
Network type
DR priority of an interface
IP address of a neighbor on an NBMA network
Interval at which Hello packets are sent on an NBMA network
The network type of an Ethernet interface is Broadcast.
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4 OSPF Configuration
Default Configuration
OSPF does not regard a network as
a P2MP network by default
regardless of any link layer
protocol. A P2MP network is
forcibly changed from the network
of another type.
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