Host network port anomaly

Description

The system uses the l2ping component to periodically monitor the health of network ports. When a port is detected as unhealthy, the system records the anomaly and triggers the alert.

Alert message

• The access NIC { .labels._nic } of the host { .labels.hostname } has been abnormal even though it has been reset by the system.

• The access NIC { .labels._nic } of the host { .labels.hostname } has been abnormal even though it has been reset by the system. Now it is being automatically quarantined.

• The access NIC { .labels._nic } of the host { .labels.hostname } was abnormal and now is back to normal after reset.

• The storage NIC { .labels._nic } of the host { .labels.hostname } has been abnormal even though it has been reset by the system.

• The storage NIC { .labels._nic } of the host { .labels.hostname } has been abnormal even though it has been reset by the system. Now it is being automatically quarantined.

• The storage NIC { .labels._nic } of the host { .labels.hostname } was abnormal and now is back to normal after reset.

• The NIC {.labels._nic} on the host {.labels.hostname} is abnormal.

• Host { .labels.hostname }: A failed physical NIC { .labels._eth } is associated with VDS { .labels._vds }.

Impact

When the l2ping component detects an unhealthy port, it attempts to reset the port. If the port does not recover after multiple resets and belongs to an active-backup or balance-slb bond, the faulty port will be quarantined.

• Single-port scenario

  The port anomaly directly causes the network it carries (such as the storage network or access network) to become unreachable.

• Port bonding scenario

  If a member port in a port bond is abnormal, traffic is automatically switched to other member ports and services are not affected. But once the bond's redundancy is reduced, when another member port also becomes abnormal, risk increases significantly. Therefore, in a port bonding scenario, the faulty port should be repaired promptly to restore redundancy.

Cause

A physical NIC or physical network device (switch, cable, optical module, etc.) is faulty.

Solution

Replace the faulty NIC, cable, switch, optical module, or other components.