Fix internet traffic meter counters

sensors.yaml

@@ -4,7 +4,7 @@
       - 'time'
       - 'date'
 
-# SNMP (Juniper) router traffic sensor
+# SNMP (VyOS) cumulative traffic counters; one octet is one byte.
   - platform: snmp
     name: snmp_wan_in
     unique_id: '3303381540758'
@@ -14,7 +14,7 @@
 #    baseoid: .1.3.6.1.2.1.2.2.1.10.12
     baseoid: .1.3.6.1.2.1.31.1.1.1.6.12 # IF-MIB::ifHCInOctets.12
     version: 2c
-    unit_of_measurement: "Octets"
+    unit_of_measurement: "B"
   - platform: snmp
     name: snmp_wan_out
     unique_id: '1573258703922'
@@ -24,17 +24,17 @@
 #    baseoid: .1.3.6.1.2.1.2.2.1.16.12
     baseoid: .1.3.6.1.2.1.31.1.1.1.10.12 # IF-MIB::ifHCOutOctets.12
     version: 2c
-    unit_of_measurement: "Octets"
+    unit_of_measurement: "B"
 
   - platform: derivative
     source: sensor.snmp_wan_in
     unit_time: s
-    unit: B
+    unit: B/s
     name: wan_in_derivative
   - platform: derivative
     source: sensor.snmp_wan_out
     unit_time: s
-    unit: B
+    unit: B/s
     name: wan_out_derivative
 
   - platform: statistics