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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R013C00

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, IP Routing Table Management, and PBR.
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(Optional) Disabling an Interface from Being Involved in IPv4 LFA Calculation

(Optional) Disabling an Interface from Being Involved in IPv4 LFA Calculation

Context

IS-IS Auto FRR can fast switch traffic to a backup link, ensuring millisecond-level traffic interruption. This protects traffic and improves IS-IS network reliability. Perform the following steps on the IS-IS interface to be disabled from participating in the Loop-Free Alternate (LFA) calculation:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run undo isis lfa-backup [ level-1 | level-2 | level-1-2 ]

    The interface is disabled from participating in the LFA calculation.

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Updated: 2019-04-08

Document ID: EDOC1100065744

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