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Configuration Guide - IP Unicast Routing

CloudEngine 12800 and 12800E V200R002C50

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, and PBR.

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Setting the Maximum Number of Equal-Cost Routes

Setting the Maximum Number of Equal-Cost Routes


Do as follows on the switch that runs OSPFv3:


  1. Run system-view

    The system view is displayed.

  2. Run ospfv3 [ process-id ]

    The OSPFv3 view is displayed.

  3. Run maximum load-balancing number

    The maximum number of equal-cost routes is set. The default value is 64.

    If the number of equal-cost routes is greater than number specified in the maximum load-balancing number command, routes are selected for load balancing based on the following criteria:

    1. Route priority: Routes with smaller priority values are selected for load balancing.
    2. Interface index: If routes have the same priority, those with greater interface index values are selected for load balancing.
    3. Next hop IP address: If routes have the same priority and interface index, those with larger IP addresses are selected for load balancing.

  4. (Optional) Run nexthop router-id interface-type interface-number weight value

    The preference for equal-cost routes is set.

    OSPFv3 selects a next hop from these equal-cost routes according to the weight. The smaller the weight is, the higher the route preference is.

    By default, the preference is not set for equal-cost routes. That is, equal-cost routes forward packets at the same time for load balancing.

  5. Run commit

    The configuration is committed.

Updated: 2019-03-21

Document ID: EDOC1000166601

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