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S600-E V200R013C00 Configuration Guide - IP Unicast Routing

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, Routing Policy, IP Routing Table Management, and PBR.
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Configuring NBMA Network Attributes

Configuring NBMA Network Attributes


  1. (Optional) Set the network type to NBMA.

    An NBMA network must be fully meshed. That is, any two switches on an NBMA network must be directly reachable. In most cases, however, this is not true. To resolve this problem, you can run specific commands to forcibly change the network type to NBMA. For details, see Configuring Network Types for OSPF Interfaces.

    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-number

      The interface view is displayed.

    3. Run ospf network-type nbma

      The network type of the OSPF interface is set to NBMA.

  2. (Optional) Set the interval at which Hello packets for polling are sent on the NBMA network.

    On the NBMA network, after the neighbor relationship becomes invalid, the switch sends Hello packets at an interval defined in the polling mechanism.

    1. Run ospf timer poll interval

      The interval at which Hello packets for polling are sent is set on an NBMA interface.

      The default value is 120, in seconds.

  3. Configure a neighboring switch on the NBMA network.

    If the network type of an interface is NBMA, the interface cannot broadcast Hello packets to discover neighboring switches. Therefore, the IP address of a neighboring switch and whether the neighboring switch can participate in DR election must be configured manually on the interface.

    1. Run quit

      Exit the interface view.

    2. Run ospf [ process-id ]

      The OSPF process view is displayed.

    3. Run peer ip-address [ dr-priority priority ]

      A neighboring switch is configured on the NBMA network.

Updated: 2019-04-08

Document ID: EDOC1100066165

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