The alert is triggered when the network bandwidth utilization of a host NIC continuously exceeds the configured threshold.
The usage rate of the bandwidth average on the {.labels.bandwidth}GbE network port {.labels._device} on host {.labels.hostname} has exceeded {.threshold}% for 5 minutes. This port is associated with the virtual distributed switch: {.labels.vds}.
The usage rate of the bandwidth sent on the {.labels.bandwidth}GbE network port {.labels._device} on host {.labels.hostname} has exceeded {.threshold}% for 5 minutes. This port is associated with the virtual distributed switch: {.labels.vds}.
The usage rate of the bandwidth received on the {.labels.bandwidth}GbE network port {.labels._device} on host {.labels.hostname} has exceeded {.threshold}% for 5 minutes. This port is associated with the virtual distributed switch: {.labels.vds}.
When a NIC is under high load, lower-traffic services that depend on it may experience performance degradation.
NIC traffic has continuously exceeded the specified threshold.
Take the appropriate action based on the function of the NIC that triggered the alert:
Storage NIC
Check the I/O bandwidth utilization of virtual machines on the node where this NIC resides. It is recommended to migrate virtual machines with high bandwidth usage to other nodes, or apply bandwidth throttling to them.
Application NIC
Check the application NIC traffic of virtual machines on the node to determine whether any abnormalities exist. If there is abnormal traffic, investigate the cause within the virtual machine. If the traffic is from normal operations, reduce the load on individual NICs by distributing virtual machines with high network requirements across nodes with lighter traffic.
Access NIC
In AOC, view the network links of the host where this NIC resides to identify which compute hosts are connected to this node. Consider redistributing workloads to reduce the access bandwidth demand on a single node.
