SNMP IF-MIB uncommon output

Grafana InfluxDB
1

Hi,

I’m having a problem with a new network device which is outputting the IF-MIB::ifXTable in a strange way.

When doing an snmpwalk on the ifName I can see the following output,

IF-MIB::ifName.3 = STRING: aa-0/1
IF-MIB::ifName.4 = STRING: aa-0/1.0
IF-MIB::ifName.9 = STRING: aa-0/2
IF-MIB::ifName.10 = STRING: aa-0/2.100
IF-MIB::ifName.11 = STRING: aa-0/3
IF-MIB::ifName.12 = STRING: aa-0/3.1
IF-MIB::ifName.13 = STRING: aa-0/3.2
IF-MIB::ifName.14 = STRING: aa-0/100
IF-MIB::ifName.15 = STRING: aa-0/100.0

But on the ifAlias I see this, (aaaaa is just an example)

IF-MIB::ifAlias.3 = STRING: aaaaa
IF-MIB::ifAlias.4 = STRING: 
IF-MIB::ifAlias.9 = STRING: aaaaa
IF-MIB::ifAlias.10 = STRING: 
IF-MIB::ifAlias.11 = STRING: aaaaa
IF-MIB::ifAlias.12 = STRING: 
IF-MIB::ifAlias.13 = STRING: 
IF-MIB::ifAlias.14 = STRING: aaaaa
IF-MIB::ifAlias.15 = STRING:

However the problem is that the data for the interface is always on the ones containing “.0”. If I filter this on the telegraf with tagpass for “aa-0/.” it would work and store data only from the correct interfaces, even I would loose the ifAlias.

Is there any possibility to mask the SNMP output, or maybe in the Query for the panel do some JOIN operation?

Thanks,

2

Store the telegraf output that you want to use with Grafana with the special tagpass in a new table.

3

@melrose, I’m sorry, I’m not sure I follow.

I can indeed store the “aa-0/x.x” in a new table but how would that solve the issue?

Maybe I wasn’t myself clear. The Let’s take aa-0/1 as example.

The ifName field is “aa-0/1” and the ifAlias field is “WAN Uplink #1” however, for that specific interface index all the other fields are empty. Like for example, octets, discards, errors etc.

If want to see the correct data for “aa-0/1” I need to check the next interface index which will be “aa-0/1.0” as ifName. There I have all the data, problem is the ifAlias field is empty.

Hope this clarifies the issue.