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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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How Can I Configure DAD?

How Can I Configure DAD?

A stack has two dual-active detection (DAD) modes:
  • DAD in direct mode through service ports: DAD is performed through dedicated direct links between member switches, as shown in Figure 22-76.
    Figure 22-76 DAD in direct mode
    Perform the following configuration:
    <HUAWEI> system-view
    [~HUAWEI] interface 10ge 1/0/1
    [~HUAWEI-10GE1/0/1] dual-active detect mode direct     //Configure DAD in direct mode on an interface.
    Warning: The interface will block common data packets, except BPDU packets. Continue? [Y/N]: y
    [*HUAWEI-10GE1/0/1] quit
    [*HUAWEI] interface 10ge 2/0/1
    [*HUAWEI-10GE2/0/1] dual-active detect mode direct
    Warning: The interface will block common data packets, except BPDU packets. Continue? [Y/N]: y
    [*HUAWEI-10GE2/0/1] commit
    
  • DAD in relay mode through Eth-Trunk interfaces: DAD is performed through an inter-device Eth-Trunk link connected to a relay agent, as shown inFigure 22-77.
    Figure 22-77 DAD in relay mode

    Perform the following configuration:

    # Configure DAD in relay mode on the Eth-Trunk interface in the stack.

    <HUAWEI> system-view
    [~HUAWEI] interface eth-trunk 1
    [*HUAWEI-Eth-Trunk1] trunkport 10ge 1/0/5
    [*HUAWEI-Eth-Trunk1] trunkport 10ge 2/0/5
    [*HUAWEI-Eth-Trunk1] dual-active detect mode relay      //Configure DAD on the Eth-Trunk interface.
    [*HUAWEI-Eth-Trunk1] commit
    

    # Configure the DAD relay function on the Eth-Trunk interface of the relay agent.

    <HUAWEI> system-view
    [~HUAWEI] sysname SwitchC
    [*HUAWEI] commit
    [~SwitchC] interface eth-trunk 1
    [*SwitchC-Eth-Trunk1] trunkport 10ge 1/0/1
    [*SwitchC-Eth-Trunk1] trunkport 10ge 1/0/2
    [*SwitchC-Eth-Trunk1] dual-active proxy      //Configure the relay function on the Eth-Trunk interface of the relay agent.
    [*SwitchC-Eth-Trunk1] commit
    
  • DAD through management interfaces: DAD is performed through the management interfaces of member switches, as shown in Figure 22-78.
    Figure 22-78 DAD through management interfaces
    Perform the following configuration:
    <HUAWEI> system-view
    [~HUAWEI] interface meth 0/0/0
    [~HUAWEI-MEth0/0/0] ip address 192.168.10.1 24     //Configure an IP address for the management interface.
    [*HUAWEI-MEth0/0/0] dual-active detect enable      //Configure DAD on the management interface.
    [*HUAWEI-MEth0/0/0] commit
    
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Updated: 2020-01-07

Document ID: EDOC1000060766

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