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Configuration Guide - Reliability

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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Configuring Load Balancing in a Smart Link Group

Configuring Load Balancing in a Smart Link Group

Pre-configuration Tasks

Load balancing between the links in a Smart Link group can improve link efficiency.

Before configuring load balancing in a Smart Link group, configure basic functions of Smart Link.

Context

Usually, the standby link in a Smart Link group is idle and does not forward data traffic. To improve link utilization in a Smart Link group, you can configure a load balancing instance for the Smart Link group. Then the standby link transmits traffic of the VLANs mapped to the load balancing instance, and the active link transmits traffic of other VLANs. As the active and standby links transmit data traffic of different VLANs, traffic is shared between the two links.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    stp region-configuration

    The MTS region view is displayed.

  3. Run:

    instance instance-id vlan { vlan-id1 [ to vlan-id2 ] }&<1-10>

    The mapping between an instance and VLANs is configured.

    Instance 0 is the default instance and does not need to be created.

    By default, all VLANs are mapped to instance 0.

    NOTE:

    To configure the mapping between an instance and MUX VLAN, map the principal VLAN, and subordinate group VLANs and subordinate separate VLANs of the MUX VLAN to the same instance. Otherwise, loops will occur.

  4. Run:

    active region-configuration

    The MTS region configuration is activated.

    The configured MST region name, VLAN mapping table, and MSTP revision level take effect only after the active region-configuration command is executed.

  5. Run:

    quit

    Return to the system view.

  6. Run:

    smart-link group group-id

    The Smart Link group view is displayed.

  7. Run:

    load-balance instance { instance-id1 [ to instance-id2 ] } &<1-10> slave

    The load balancing instance is specified for the Smart Link group. This ensures that traffic of the VLANs mapped to the instance is transmitted through the standby interface to implement load balancing.

    NOTE:

    The load balancing instance specified by the load-balance instance command must be in the protected instance list configured by the protected-vlan reference-instance command.

Checking the Configuration

Run the display smart-link group { all | group-id } command to check information about the Smart Link group.

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Updated: 2019-04-18

Document ID: EDOC1000141941

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