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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 the Overload Bit for an IS-IS Device

Configuring the Overload Bit for an IS-IS Device

If an IS-IS device needs to be temporarily isolated, configure the IS-IS device to enter the overload state to prevent other devices from forwarding traffic to this IS-IS device and prevent routing black hole.

Pre-configuration Tasks

Before configuring the overload bit for an IS-IS device, complete the following task:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run isis [ process-id ]

    The IS-IS view is displayed.

  3. Run set-overload [ on-startup [ timeout1 | start-from-nbr system-id [ timeout1 [ timeout2 ] ] | wait-for-bgp [ timeout1 ] ] [ send-sa-bit [ timeout3 ] ] ][ allow { interlevel | external }* ]

    The overload bit for non-pseudonode LSPs is configured.

Verifying the Configuration

  • Run the display isis lsdb [ [ level-1 | level-2 ] | verbose | [ local | lsp-id | is-name symbolic-name ] ] * [ process-id | vpn-instance vpn-instance-name ] command to check information in the IS-IS LSDB.
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Updated: 2019-08-12

Document ID: EDOC1100034072

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