[TechNotes]S Series Switch Stack Fault Troubleshooting

【Introduction】

• Troubleshooting Flowchart

• Typical Stack Troubleshooting Cases

【Contents】

Troubleshooting Flowchart for Stack Setup Failures

In most cases, a stack cannot be set up because of incorrect configuration or link faults. The following figure shows how to troubleshoot a stack setup failure.

Detail troubleshooting guides please click Here

Typical Stack Troubleshooting Cases

Checking the Stack Configuration

• The stacking function is disabled.

  Switches can set up a stack through stack card connection and service port connection based on stack port types. If the stacking function is not enabled, perform the following operations:

  • For a device set up a stack using stack cards, install stack cards and run the stack enable command in the diagnostic view to enable the stacking function.

  • For a device set up a stack using service ports, the stacking function is enabled by default. If stack-related commands cannot be run, run the stack enable command in the diagnostic view to enable the stacking function.

• The reserved VLAN of the stack is occupied.

  The reserved VLAN of a stack is used to exchange stack protocol packets. If the reserved VLAN is used by another service, the stack cannot be set up.

  By default, a stack uses VLAN 4093 as its reserved VLAN. You can run the display stack command in any view to check the Stack reserved VLAN field to view the reserved VLAN of the stack. If you need to deploy another service using VLAN 4093, run the stack reserved-vlan command to change the reserved VLAN of the stack. Ensure that an unused VLAN is configured as the reserved VLAN for the stack.

• The stack port configuration is incorrect.

  Devices can set up a stack using stack cards without stack ports. However, you need to configure stack ports before setting up a stack using service ports.

  You can run the following commands to check whether a stack port is configured.

  If no stack port is configured, perform the following operations to configure one:

  • For devices running V200R002 and earlier versions:

    <HUAWEI> system-view [HUAWEI] stack port interface gigabitethernet 0/0/1 enable  //Configure a physical interface as a stack member port. Warning: This operation will clear all configurations on these interfaces, continue? [Y/N]:y Info: This operation may take a few seconds. Please wait for a moment... [HUAWEI] interface stack-port 0/1 [HUAWEI-stack-port0/1] port member-group interface gigabitethernet 0/0/1  //Add the stacking-enabled physical interface to logical stack port 1.
    

  • For devices running V200R003 and later versions:

    <HUAWEI> system-view [HUAWEI] interface stack-port 0/1 [HUAWEI-stack-port0/1] port interface gigabitethernet 0/0/1 enable  //Add a physical interface to logical stack port 1.
    

  • For devices running V200R002 and earlier versions, run the display stack-port membership command to check the stack port configuration.

    <HUAWEI> display stack-port membership                                           stack-port0/1 has 0 ports                                                        ---------------------------------------------                                                                                                                     stack-port0/2 has 0 ports                                                        ---------------------------------------------                                   
    

  • For devices running V200R003 and later versions, run the display stack port command to check the stack port configuration.

    <HUAWEI> display stack port                                     Info: The stack port configuration does not exist.       
    

Checking Stack Cable Connections

Member ports in the logical stack port 1 must be connected to member ports in the logical stack port 2. Otherwise, the alarm "FSP_1.3.6.1.4.1.2011.5.25.183.1.22.9 hwStackLogicStackPortLinkErr" is generated.

1. Run the display stack port command to check member ports of the stack port.

2. Connect the member ports in the local logical stack port 1 to the member ports in the remote logical stack port 2, and connect the member ports in the local logical stack port 2 to the member ports in the remote logical stack port 1.

More details please click Here