How to create graph from wireless signal (negative)

[tomasi]

Hi,

This is my first post

I need help to solve the following issue:

I got some OID from Mimosa Site:

http://backhaul.help.mimosa.co/snmp-oid-reference

Then, I've created 4 items, one for each of these OID:

1.3.6.1.4.1.43356.2.1.2.6.1.1.3.1 	mimosaRxPower.1
1.3.6.1.4.1.43356.2.1.2.6.1.1.3.2	mimosaRxPower.2
1.3.6.1.4.1.43356.2.1.2.6.1.1.3.3	mimosaRxPower.3
1.3.6.1.4.1.43356.2.1.2.6.1.1.3.4	mimosaRxPower.4

Type of information: numeric (unsigned)
Data type: decimal
Store value: as is
Show value: as is

After that, I've created a graph that have these 4 items together

But... the graph, after 12h, is not showing any information.

Then, I've made a snmpget to see if these OID really return a value. They are correct.

root@zabbix:~# snmpget -v1 -cpublic 172.16.200.170 1.3.6.1.4.1.43356.2.1.2.6.1.1.3.1
iso.3.6.1.4.1.43356.2.1.2.6.1.1.3.1 = INTEGER: -61
root@zabbix:~# snmpget -v1 -cpublic 172.16.200.170 1.3.6.1.4.1.43356.2.1.2.6.1.1.3.2
iso.3.6.1.4.1.43356.2.1.2.6.1.1.3.2 = INTEGER: -61
root@zabbix:~#

These OID are intendend to show wireless receive signal - in negative numbers, like -40dbm or -80dBm.

Which point is wrong? I didn't find a way to solve this yet

I'm using Zabbix 3.2.1

Thank you!

[tomasi]

Solved

Hi,

I solved this issue changing the Type of Information to Numeric (float)

Now, it's ok - showing values from -50dBm to -70dBm