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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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This section provides answers to frequently asked questions about use of stacks.

How Can I Specify a Stack Member Switch as the Master Switch?

  • Assume that SwitchA and SwitchB set up a stack, and you want SwitchA to be the master switch. If stack cables have been connected, complete stack configuration on SwitchA first and restart SwitchA. After SwitchA restarts, complete stack configuration on SwitchB and restart SwitchB. After SwitchB restarts, it joins the stack and becomes the standby switch. SwitchA functions as the master switch in the stack.

  • If you complete stack configuration on the two switches before connecting stack cables, the two single-chassis stacks merge into one stack after they are connected. Set a higher stack priority for SwitchA and a lower stack priority for SwitchB, so that SwitchA becomes the master switch after the stacks merge.

How Do I Know Which Switch Is the Master Switch in a Stack?

After a stack is set up, you can observe indicators on member switches or use commands to determine which member switch is the master switch.
  • Observing indicators

    If the STAT indicator on a switch is steady green, the switch is the master switch. The STAT indicators on the other member switches are blinking green, and the switches are standby or slave switches.

  • Using commands

    Run the display stack or display device command to check which member switch is the master switch.
    <HUAWEI> display stack
    MemberID Role     MAC              Priority   Device Type     Bay/Chassis         
    3        Master   006d-a835-1700   160        CX910           1E/120               
    4        Slave    0019-8c68-3360   150        CX911           2X/120               
    5        Standby  0023-d856-1c00   140        CX910           3X/120               
    <HUAWEI> display device
    Device status:
    Slot  Card   Type               Online   Power Register     Alarm    Primary
    3     -      CX910              Present  On    Registered   Normal   Master
    4     -      CX911              Present  On    Registered   Normal   Slave
    5     -      CX910              Present  On    Registered   Normal   Standby

How to Load Patches for a Stack?

The process of loading patches for a stack is similar to that for a standalone device:
  1. Upload patch files to the master switch.

  2. Run the patch load filename all run command in the user view to load and run the patches.

  3. Run the display patch-information command to check whether the patches are loaded successfully.

How to Restart a Stack Member Device?

Run the reset slot slot-id command in the user view to restart a specified stack member device.

Before restarting a member device, save the stack configurations of the device to ensure that the device can join the stack normally after being restarted.

Updated: 2019-08-09

Document ID: EDOC1000041694

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