Add separate thresholds for upstream and downstream transfer rate

The old thresholds are the default and apply to both if they are not explicitly set.

command_check_iperf3.conf

@@ -1,7 +1,7 @@
 object CheckCommand "iperf3" {
     import "plugin-check-command"
 
-    command = [ "/home/nagios/check_iperf3_check_iperf3.py" ]
+    command = [ "/home/nagios/check_iperf3/check_iperf3.py" ]
 
     arguments = {
         "--remote" = {

service_check_iperf3.conf

@@ -1,7 +1,7 @@
 apply Service "iperf3" {
     import "generic-service"
 
-    check_command = "check_iperf3"
+    check_command = "iperf3"
     check_interval = 4h
     retry_interval = 15m
     vars.notification_interval = 1d
@@ -10,7 +10,7 @@ apply Service "iperf3" {
         if (match("_*", k)) {
             vars[k.substr(1)] = v
         } else {
-            vars["check_iperf3+_" + k] = v
+            vars["check_iperf3_" + k] = v
         }
     }