centos7

Are you sure that you need multiply? I suppose you need to use 0.125 multiplier.

Multiplier 8 is correct if octets need to be converted into bits.

I think that the issue may be caused by overflow of 32-bit counters. 64-bit counters should be used.

Is the host monitored by proxy or directly by server?

Hello, I am using the oid of counter64, which is collected by the server directly on the switch and there is no agent in the middle.

Hm, is it a coincidence that all abnormal spikes in the graph are in the beginning of the hour?

Can you show Zabbix server performance graphs for the same period of time?

Is bulk mode enabled for that interface?

Can you create an item with identical OID, but without preprocessing? We would like to see raw values gathered by Zabbix at the time of anomalous spikes.

Hello, I use the discovery automatic discovery port, automatically generate item, automatically add graphs, attachments are my screenshots.
I have observed that every abnormal flow is done in one minute. The abnormal traffic is a multiple of the previous normal data. I guess it will be zabbixserver collecting data while the network jitter does not get the data. When you get the data again, it has been accumulating in a few minutes and after the ZABBIX front value is reduced. The data can be shown to be so unusual.

If you do not do any processing, there is a value of nearly 300P. It is too big to see any Change. I choose Change per second.

Please show values, not the graph.

Latest data can only display a currently acquired value. How can we display all data values?

Like so:

Links to value history/simple graph

The last column in the latest value list offers:

• a History link (for all textual items) - leading to listings (Values/500 latest values) displaying the history of previous item values.
• a Graph link (for all numeric items) - leading to a simple graph. However, once the graph is displayed, a dropdown on the upper right offers a possibility to switch to Values/500 latest values as well.

Closing as Duplicate of ZBX-14318 which looks very similar. Dear liyang, if you have additional information to provide, please do it in ZBX-14318.