On Wednesday, October 19, 2022 at 06:42:18 p.m. GMT+9, Stuart Henderson
<stu.li...@spacehopper.org> wrote:
On 2022-10-19, All <olp...@yahoo.ca> wrote:
> Hi,
> Thank you for a quick reply! That is a bit sad that we only have coldStart,
> but I udnerstand.
> It would be great to have traps for CPU/temperature threshold breaches for
> general stuff and addition (especially) as well as deletion of IP addresses
> from a given table.
>PF tables are polled by snmpd when the relevant MIBs are requested,
>there's no 'push notification' from the kernel about changes to these.
>While not impossible this would require fairly wide ranging changes
>to implement in a sane way. (snmpd can't really just keep fetching the
>tables periodically itself and compare them to find changes...)
Right. Vendors that do implement it in their devices usually bake it in, so
indeed it will require big changes.
>Temperature alerts are indeed something that would be useful, though
>there isn't a notion of "what temperature is too high/low" in the kernel
>framework (other than "does the sensor itself report 'critical'" which
>IME is not actually very useful). This would probably best be done in
>conjunction with sensorsd and its configuration language (perhaps even
>moving the whole sensors mib there from snmpd-metrics, though that
>might be overkill).
>However I think you could /probably/ already implement this yourself by
>calling snmp(1) 'trap' from sensorsd if you wanted this now.
Ah, for that we have wonderful swiss-knife called "ifstated" that can be abused
to do almost anything.
Perhaps I might have to go to that route, I already abuse it for so many other
things. It's an awesome tool, imho.
I guess I can add voltages there too and UPS state (onBattery/onAC, etc)
> For future references, are there any specific traps you would like to
> see implemented?
>Not a high priority, but the most useful for me would be linkDown,
>linkUp (.1.3.6.1.6.3.1.1.5.3 and .4), and BGP neighbour state
>(bgpEstablished, bgpBackwardTransition from BGP4-MIB). The latter
>being more useful (as the link states can be picked up easily enough
>by polling).
linkDown/Up are probably the most common and standard to have. Though not so
pressing for me.
