Which types of error packet statistics on a switch interface are caused by physical link faults (including hardware faults of local and peer devices)

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Run the display interface command to view packet statistics on an Ethernet interface. If the command output contains the following types of error packet statistics, physical link faults (including hardware faults of local and peer devices) may have occurred.
CRC: indicates the number of CRC error packets received by the interface.
Symbols: indicates the number of received packets with coding error.
Jabbers: indicates the number of received packets with length exceeding the maximum jumbo frame size and incorrect FCS values.
Throttles/Runts: indicates the number of undersized frames with incorrect FCS values received by the interface.

Other related questions:
Why the Eth-OAM Link Fault packets cannot be captured
The Eth-OAM packets are sent to the CPU, so the port mirroring or flow mirroring function cannot capture Link Fault packets. To capture the Eth-OAM Link Fault packets, mirror the packets in the CPU to the related observing ports first.

The state of an E1 interface is not Up when the interface interconnects with the peer device
For the problem that the state of an E1 interface of an AR router is not Up when the interface interconnects with other devices, see the troubleshooting guide. For details, access the URL in the right column.

What are common causes for AP faults
The common causes are as follows: - The AP does not have an IP address. - The AP's IP address conflicts with that of a device on the local LAN. - The network between the AP and AC is faulty. - The AP fails to be authenticated. - The number of APs connected to the AC reaches the upper limit. - The parameters such as the MAC address and SN on the AP conflict with the parameters on other APs. - The radio environment deteriorates. - The AP fails due to hardware problems.

How can we discover the link fault between the quorum server and local storage and between that and remote storage?
On DeviceManager of arrays, alarms of links between arrays and switches will be generated. If you have configured the alarm reporting function, alarms will be reported to the data center management platform through protocols such as SNMP.

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