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CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.
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Configuring a NET and Enabling IPv6 IS-IS

Configuring a NET and Enabling IPv6 IS-IS

Context

NET is the special form of the network service access point (NSAP). After the IS-IS view is displayed, IS-IS can start only when a NET is configured for an IS-IS process.

Generally, you only need to configure one NET for an IS-IS process. When an area needs to be redefined, for example, the area needs to be merged with other areas or divided into sub-areas, configure multiple NETs to ensure route correctness. A maximum of three area addresses can be configured for an IS-IS process. Therefore, a maximum of three NETs can be configured for an IS-IS process. When configuring multiple NETs, ensure that their system IDs are the same.

IS-IS can run on an IPv6 topology only when IPv6 is enabled on an IS-IS process.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run isis [ process-id ]

    The IS-IS process view is displayed.

  3. Run network-entity net

    A NET is configured.

    NOTE:

    Configuring loopback interface addresses based on NETs is recommended to ensures that a NET is unique on the network. If NETs are not unique, route flapping will easily occur.

    An area ID is used to uniquely identify an area in the same IS-IS domain. All routers in the same Level-1 area must share the same area ID, while routers in the same Level-2 area can have different area IDs.

  4. Run ipv6 enable

    IPv6 is enabled for the IS-IS process.

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Updated: 2019-05-20

Document ID: EDOC1100034072

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