Monitoring signal strength and SNR with Nagios/Icinga
Added by M M over 3 years ago
Hi,
I want to monitor signal strength and SNR with Nagios/Icinga using the TVHeadend HTTP API.
The purpose is to watch for some problems on the antenna and/or the input card.
I realised that the SNR and signal strength is reported only when the input card is streaming something so when a client is connected on it.
For this reason I am thinking about writing a Nagios plugin which connect to a stream on a given card and during the stream it connects to the API to check the signal strength.
But the question is how I can connect to a specific input card if I have 8 inputs and all of them are linked to the same network because they have a single antenna?
I ask this because if I connect to a stream on a channel or on a Mux I can't choose a specific input card but the first available is used in the network.
Thank you very much!
Bye
Replies (2)
RE: Monitoring signal strength and SNR with Nagios/Icinga - Added by saen acro over 3 years ago
dvb-fe-tool -m -g
can do same with parser with your values needed.
Also there is other custom tools as this one:
./feinfo-test /dev/dvb/adapter1/frontend3
Frontend: /dev/dvb/adapter1/frontend3
DVB API: 5.11
Frontend: ST STV0367 DDB DVB-C/T
Delivery system: dvb-c dvb-t
Frequency range: 48000 .. 864000
Symbolrate range: 870 .. 11700
Frontend capabilities: 0xc002feaf
[src/fe/status.rs:386] &self.props = [
DtvProperty {
cmd: "DTV_DELIVERY_SYSTEM",
data: 3,
result: 0,
},
DtvProperty {
cmd: "DTV_MODULATION",
data: 3,
result: 0,
},
DtvProperty {
cmd: "DTV_STAT_SIGNAL_STRENGTH",
stats: [
DtvStats {
scale: "FE_SCALE_NOT_AVAILABLE",
value: "not available",
},
],
result: 0,
},
DtvProperty {
cmd: "DTV_STAT_CNR",
stats: [
DtvStats {
scale: "FE_SCALE_DECIBEL",
value: 27.987,
},
],
result: 0,
},
DtvProperty {
cmd: "DTV_STAT_PRE_ERROR_BIT_COUNT",
stats: [],
result: 0,
},
DtvProperty {
cmd: "DTV_STAT_ERROR_BLOCK_COUNT",
stats: [
DtvStats {
scale: "FE_SCALE_COUNTER",
value: 0,
},
],
result: 0,
},
]
Status: LOCK dvb-t | Signal 0.00dBm (0%) | Quality 27.99dB (100%) | BER:- | UNC:0
RE: Monitoring signal strength and SNR with Nagios/Icinga - Added by M M over 3 years ago
Thanks!
I installed dvb-fe-tool but I see that `-m` option is not valid:
[root@streamer2 ~]# dvb-fe-tool -m -g dvb-fe-tool: invalid option -- 'm' Try `dvb-fe-tool --help' or `dvb-fe-tool --usage' for more information.
And if I run dvb-fe-tool
without any option it tells that the adapter is busy (TVHeadend is using it):
[root@streamer2 ~]# dvb-fe-tool ERROR Device or resource busy while opening /dev/dvb/adapter0/frontend0
All adapters are used by TVHeadend everytime.
Isn't any way to do what I need directly from TVHeadend?
Where I can find the feinfo-test
command?
Thank you very much!