Segment Routing v6 Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

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Segment Routing v6 Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

Configure SRv6 IS-IS microloop avoidance

Updated: September 8, 2026

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Provides instructions for enabling SRv6 microloop avoidance under IS-IS and configuring the RIB update delay used for temporary loop-free forwarding.

Use this procedure to configure SRv6 IS-IS Microloop Avoidance and set the Routing Information Base (RIB) update delay value.

Before you begin

Complete the SRv6 configuration before performing these steps.

Procedure

Configure SRv6 IS-IS microloop avoidance.

Example:


Router(config)# router isis test-igp
Router(config-isis)# address-family ipv6 unicast
Router(config-isis-af)# microloop avoidance segment-routing
Router(config-isis-af)# microloop avoidance rib-update-delay 2000
Router(config-isis-af)# commit

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