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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R011C10

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 the ECMP Load Balancing Mode

Configuring the ECMP Load Balancing Mode


ECMP applies to the network where multiple links to the same destination are available. In the traditional routing technology, packets are forwarded to the destination through one link only; the other links are in backup or inactive state; switching between these links requires a certain period when dynamic routes are used. Different from the traditional routing technology, ECMP can use multiple links to increase transmission bandwidth and transmit data of a faulty link without any delay or packet loss.


  • Configure common ECMP load balancing.
    1. Run system-view

      The system view is displayed.

    2. Run ecmp load-balance sip [ dip ] [ port ]

      The ECMP load balancing mode is set.

      By default, ECMP load balancing is performed on packets based on the source IP address, destination IP address, and transport-layer source port number.

  • Configure enhanced ECMP load balancing.
    1. Run system-view

      The system view is displayed.

    2. Run ecmp-profile profile-name

      An ECMP profile is created, and the ECMP profile view is displayed.

    3. Run ipv4 field { sip | dip | vlan | l4-sport | l4-dport | protocol | sport } *

      The ECMP load balancing mode of IPv4 packets is set.

      By default, enhanced ECMP load balancing is performed on IPv4 packets based on the source IP address and destination IP address.

    4. Run quit

      Return to the system view.

    5. Run ecmp load-balance enhanced profile profile-name

      The ECMP profile is applied.

Verifying the Configuration

Run the display ecmp-profile [ profile-name ] command to check the ECMP profile configuration.

Updated: 2020-02-04

Document ID: EDOC1000178324

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