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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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Configuring a Preference Value for IPv6 IS-IS

Configuring a Preference Value for IPv6 IS-IS

Context

If multiple routes to the same destination are discovered by different routing protocols running on the same device, the route discovered by the protocol with the highest preference is selected.

To prefer an IPv6 route discovered by IS-IS, configure a higher preference for IS-IS IPv6 route. In addition, a routing policy can be configured to increase the preferences of specified IS-IS IPv6 routes, without affecting route selection.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run isis [ process-id ]

    The IS-IS view is displayed.

  3. Run ipv6 preference { route-policy route-policy-name | preference }*

    An IS-IS IPv6 route preference value is configured.

    The default IS-IS IPv6 route preference value is 15. A smaller preference value indicates a higher preference.

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Updated: 2019-04-08

Document ID: EDOC1100065744

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