Network grpah not seen

[mahmood]

I don't see any graph for network interface bandwidth and speed.
Any guess?

[Atsushi]

Check the host item list. Do you have network interface items?
If you are using the template "Template OS Linux by Zabbix agent" prepared by default and it has not passed for more than one hour after setting, the discovery process of the network interface may not be completed .
Wait at least one hour, or select "Network interface discovery" from the list of discovery rules for the host and click the check now button to wait for a while.

[mahmood]

Right. After about one hour, I can now see the network data.
May I know what is the Y-axis on the right?

[Atsushi]

The left Y-axis should show traffic(bps) and the right Y-axis should show the number of packet errors and discarded. Check the graph settings in the host settings for details.