Common Fault Summary of Huawei network switches

Frequent Summary of faults of Huawei network switches. When using Huawei network switches, various faults of Huawei network switches often occur, as well as Ping failures and faults of Huawei network switches with abnormal communication, the following is a summary of faults.

The computer is connected to other devices through a vswitch and on the same network segment, but the Ping fails. What is the problem?

Hardware Huawei Network Switch Failure: Check whether the switch display light, power supply, and connection are normal, and whether the switch is normal.

Set Huawei Network Switch Failure: Check whether the switch has an IP address. If an IP address is set to be different from other devices, delete it or set an IP address in the same network segment as other devices. When VLAN settings fail, several ports connected to the switch belong to different VLANs, so they cannot be connected. Remove or modify the configured VLAN to the same VLAN.

To implement the FEC function, connect the two pairs of ports of the two vswitches with two lines at the same time, but find that each switch is always a normal port, and the other port displays a red light, is the switch port faulty?

Huawei network switch troubleshooting: Generally, in this case, the switch is normal, because the two switches are connected with two ports, so the switch determines that the loop exists, and it will automatically disconnect one of them, the corresponding port is Down (the port with a red light is displayed). The solution is to enable the Spanning tree function (which is enabled by default) and let the switch know that the two ports are FEC functions, logically, it is a port.

The computer can communicate normally on a 10/100 M Adaptive switch, but the red light is displayed when the M Nic is connected to the switch. The communication is abnormal.

Huawei network switch troubleshooting: this situation may be caused by improper configuration. The port number of the switch may be forced to 10 M, and an error will be reported only when the port is connected to M, the solution is to restore the port speed to adaptive or force it to 100 M under the port configuration.

The vswitch has several VLANs. Can machines in the same VLAN communicate with each other if they are not in the same CIDR Block?

Troubleshooting of Huawei network switches: No. The same VLAN can only be in the same network segment, but different network segments cannot be in the same VLAN. The switch reports an error.

The vswitch has several VLANs. Can machines in different VLANs communicate with each other in the same network segment?

Troubleshooting of Huawei network switches: No. Different VLANs must belong to different CIDR blocks. If the routing function is not used, different VLANs cannot communicate with each other.