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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R010C00

This document describes IP Unicast Routing configurations supported by the switch, including the principle and configuration procedures of IP Routing Overview, Static Route, RIP, RIPng, OSPF, OSPFv3, IS-IS(IPv4), IS-IS(IPv6), BGP, Routing Policy ,and PBR, and provides configuration examples.
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Configuring a Preference Value for IS-IS

Configuring a Preference Value for 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 a route discovered by IS-IS, configure a higher preference value for IS-IS. In addition, a routing policy can be configured to increase the preferences of specified IS-IS 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:

    preference { preference | route-policy route-policy-name } *

    The IS-IS preference value is configured.

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

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Updated: 2019-08-21

Document ID: EDOC1000141900

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