Configuring Nbma Network Attributes - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
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The network types of the interfaces on both ends of a link must be the same; otherwise, the OSPF
neighbor relationship cannot be established.
Perform the following steps on the switch running OSPF.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
ospf network-type { broadcast | nbma | p2mp | p2p }
The network type of the OSPF interface is configured.
When the network type is configured for an interface, the original network type of the interface
is replaced.
The network type can be configured based on the real world situations.
l On an interface with the broadcast network type, if a router that does not support the multicast
l On an interface with the NBMA network type, if the network is fully meshed or any two
l On an interface with the NBMA network type, if the network is not fully meshed, change
l If only two routers run OSPF on the same network segment, changing the network type of
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4.4.3 Configuring NBMA Network Attributes

To implement OSPF functions, configure NBMA network attributes.
Issue 01 (2012-03-15)
The network type of a serial interface or a POS interface running PPP or HDLC is P2P.
The network type of an ATM interface or a Frame Relay (FR) interface is NBMA.
NOTE
A P2MP network is forcibly changed from another other type of network.
address exists, change the network type of the interface to NBMA.
routers are directly connected, change the network type of the interface to broadcast and do
not configure neighboring router information on the interface.
the network type of the interface to P2MP. After that, two indirectly connected routers can
communicate through one router that can directly reach both the two routers. After the
network type of the interface is changed to P2MP, configuring neighboring router
information on the interface is unnecessary.
the interface to P2P is recommended.
NOTE
OSPF cannot be configured on a null interface.
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4 OSPF Configuration
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