Grafana + InfluxDB + Telegraf

Grafana InfluxDB
1

Hello. I try to monitor network traffic from device D-link DGS-3420-28TC.
Looks good, but I want an opportunity to check devices interfaces manualy from the table,so I use variables.
I make it, but it didnt make changes, when I check one or two interfaces:

2
21877×813 189 KB

Config of variable:

3
31703×938 75.3 KB

And my InfluxDB query looks like that:

SELECT derivative(mean("ifHCInOctets"), 1s) *8 AS "Input", derivative(mean("ifHCOutOctets"), 1s) *8 AS "Output" FROM "autogen"."interface" WHERE $timeFilter GROUP BY time($__interval), "ifDescr" fill(null)
2

I think you forgot to filter and it should be

SELECT derivative(mean("ifHCInOctets"), 1s) *8 AS "Input", derivative(mean("ifHCOutOctets"), 1s) *8 AS "Output" FROM "autogen"."interface" WHERE "ifDescr" =~ /^$Interfaces$/ AND $timeFilter GROUP BY time($__interval), "ifDescr" fill(null)