So The BSSID is the constant and I want to know when the apCurrentNoise
changes by -/+5 but only if I am connected to the same access point
(BSSID). If the BSSID changes and the Noise level changes then its not as
big of a deal. It's only if I am connected to the same BSSID and in a new
polling interval the noise level changes. # HELP apCurrentNoise Background
noise level (dBm) of the 802.11 device. -
1.3.6.1.4.1.11.2.14.11.6.4.5.1.1.21.6 # TYPE apCurrentNoise gauge
apCurrentNoise -92 # HELP apSysStatBssid MAC address of the AP that the
HPE501 is Associated to. - 1.3.6.1.4.1.11.2.14.11.6.4.5.1.1.1.1.31.3 # TYPE
apSysStatBssid gauge apSysStatBssid{apSysStatBssid="07:8B:67:FF:4F:35"} 1
On Thursday, March 6, 2025 at 1:35:22 PM UTC-5 Brian Candler wrote:
> If you can show complete examples of the metrics (the noise level one and
> the one you want to correlate to, including all the labels) then it may be
> possible to show you how to join them.
>
> On Thursday, 6 March 2025 at 15:43:25 UTC Matthew Koch wrote:
>
>> This is used to track how a wireless client is connected to a specific
>> access point. What I am trying to determine is when a client has endured a
>> significant amount of interference so when I read the noise level from the
>> client I want to report when that metric has changed significant but I only
>> want to do this if the mac address which is collected at the same time is
>> unchanged. We need multiple readings to determine this so when I compare
>> one point in the time series db to another I use the MAC address for
>> comparison. the challenge is I cannot do this with the label.
>>
>> On Wednesday, March 5, 2025 at 3:39:35 PM UTC-5 Brian Candler wrote:
>>
>>> Sorry, I don't understand - what sort of comparison do you want to do on
>>> a MAC address?
>>>
>>> On Wednesday, 5 March 2025 at 19:23:09 UTC Matthew Koch wrote:
>>>
>>>> In Grafana I am trying to use the metric to do a comparison, but I
>>>> cannot do it because it is a label and not a value. SNMP returns a value
>>>> of
>>>> 1 with the label
>>>>
>>>> On Wednesday, March 5, 2025 at 12:56:42 PM UTC-5 Brian Candler wrote:
>>>>
>>>>> OK. I checked this. regex_extracts is only from when you want to
>>>>> extract a metric *value* (i.e. a floating-point number) from text, for
>>>>> some
>>>>> dodgy MIBs which respond with things like temperature as a string value.
>>>>>
>>>>> Since you already have apSysStatBssid containing the MAC address as a
>>>>> string label, what exactly do you want to do with it?
>>>>>
>>>>> On Wednesday, 5 March 2025 at 16:43:08 UTC Matthew Koch wrote:
>>>>>
>>>>>> I've tried the variety of Regex and still it doesn't return any data.
>>>>>> It's interesting because nothing comes back in the output and it doesn't
>>>>>> error as well.
>>>>>>
>>>>>> On Wednesday, March 5, 2025 at 3:57:22 AM UTC-5 Brian Candler wrote:
>>>>>>
>>>>>>> Start with regex: '(.*)'
>>>>>>>
>>>>>>> If that works, then you know it's just the regex at fault. I'd start
>>>>>>> by trying to double-backslash, i.e.
>>>>>>>
>>>>>>> - regex: '([\\w]{2}:[\\w]{2}:[\\w]{2}:[\\w]{2}:[\\w]{2}:[\\w]{2})'
>>>>>>>
>>>>>>> The spec for Go's regex language (RE2) is here:
>>>>>>> https://github.com/google/re2/wiki/syntax
>>>>>>>
>>>>>>> I'm not sure if a backslash character class is allowed inside a
>>>>>>> square-bracket character class. So you could try:
>>>>>>>
>>>>>>> - regex: '((\\w){2}:(\\w){2}:(\\w){2}:(\\w){2}:(\\w){2}:(\\w){2})'
>>>>>>> - regex:
>>>>>>> '([[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2})'
>>>>>>>
>>>>>>> or something simpler like:
>>>>>>>
>>>>>>> - regex: '([a-fA-F0-9:]{17})'
>>>>>>>
>>>>>>> On Tuesday, 4 March 2025 at 22:11:04 UTC Matthew Koch wrote:
>>>>>>>
>>>>>>>> I'm trying to extract the MAC address out of what is returned by
>>>>>>>> SNMP exporter. The Regex I am using seems to work in general when I
>>>>>>>> used an
>>>>>>>> online Regex tester but for some reason it's not working in SNMP
>>>>>>>> exporter.
>>>>>>>>
>>>>>>>> SNMPExporter config:
>>>>>>>>
>>>>>>>> - name: apSysStatBssid
>>>>>>>> oid: 1.3.6.1.4.1.11.2.14.11.6.4.5.1.1.1.1.31.3
>>>>>>>> type: PhysAddress48
>>>>>>>> help: MAC address of the AP that the HPE501 is Associated to.
>>>>>>>> - 1.3.6.1.4.1.11.2.14.11.6.4.5.1.1.1.1.31.3
>>>>>>>> regex_extracts:
>>>>>>>> Test:
>>>>>>>> - regex:
>>>>>>>> '([\w]{2}:[\w]{2}:[\w]{2}:[\w]{2}:[\w]{2}:[\w]{2})'
>>>>>>>> value: '$1'
>>>>>>>>
>>>>>>>> This is what I typically get data wise without the regex config:
>>>>>>>>
>>>>>>>> # HELP apSysStatBssid BSSID of currently connected accesspoint -
>>>>>>>> 1.3.6.1.4.1.29456.3.2
>>>>>>>> # TYPE apSysStatBssid gauge
>>>>>>>> apSysStatBssid{apSysStatBssid="6A:56:E3:7A:85:47"} 1
>>>>>>>
>>>>>>>
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