Cacti/NaN in rrd files and no graph

[darkleo27]

Hi everybody!!
I have a big issue with Cacti, I'm new in Cacti (no experience), I have installed V. 1.2.15 Centos 7, I can graph traffic interfaces from CMTS Cisco without problem, but I've downloaded a template in order to graph SNR, FEC, and others. But it doesn't work. Apparently, everything is ok, but it's not true. So, What can I do?

This is the log:
2021-04-06 10:40:57 - POLLER: Poller[Main Poller] WARNING: Invalid Response(s), Errors[3] Device[CMTS_CISCO] Thread[1] DS[CMTS_CISCO - Traffic - Fa0/0/0, CMTS_CISCO - Traffic - Gi0/0/0, CMTS_CISCO - Logged in Users] Graphs[CMTS_CISCO - Traffic - Fa0/0/0, CMTS_CISCO - Traffic - Gi0/0/0, CMTS_CISCO - Logged in Users]
2021-04-06 10:40:51 - POLLER: Poller[Main Poller] WARNING: Invalid Response(s), Errors[8] Device[CMTS_CCNET] Thread[1] DS[CMTS_CCNET -, CMTS_CCNET - Util. - CATV-MAC 1 - VILLAMARIA_OFICINA, CMTS_CCNET - Util. - CATV-MAC 2 - VILLAMARIA_PORTON, CMTS_CCNET - Util. - CATV-MAC 3 - VILLAMARIA_CENTRO, CMTS_CCNET - Util. - CATV-MAC 4 - CAI_PRADERA, CMTS_CCNET - Util. - CATV-MAC 5 - TURIN, CMTS_CCNET - Util. - Upstream Physical Interface 3/0.0 - VILLAMARIA_OFICINA, CMTS_CCNET - Util. - Upstream Physical Interface 3/0.1 - VILLAMARIA_OFICINA] Graphs[CMTS_CCNET -, CMTS_CCNET - Util. - CATV-MAC 1 - VILLAMARIA_OFICINA, CMTS_CCNET - Util. - CATV-MAC 2 - VILLAMARIA_PORTON, CMTS_CCNET - Util. - CATV-MAC 3 - VILLAMARIA_CENTRO, CMTS_CCNET - Util. - CATV-MAC 4 - CAI_PRADERA, CMTS_CCNET - Util. - CATV-MAC 5 - TURIN, CMTS_CCNET - Util. - Upstream Physical Interface 3/0.0 - VILLAMARIA_OFICINA, CMTS_CCNET - Util. - Upstream Physical Interface 3/0.1 - VILLAMARIA_OFICINA]
2021-04-06 10:40:02 - POLLER: Poller[Main Poller] WARNING: Invalid Response(s), Errors[9] Device[RFGW-10] Thread[1] DS[RFGW-10 - Traffic - Qa3/1, RFGW-10 - Traffic - Qa3/2, RFGW-10 - Traffic - Qa3/3, RFGW-10 - Traffic - Qa3/9, RFGW-10 - Traffic - Qa3/10, RFGW-10 - Traffic - Qa4/1, RFGW-10 - Traffic - Qa4/2, RFGW-10 - Traffic - Qa4/3, RFGW-10 - Traffic - Qa4/9] Graphs[RFGW-10 - Traffic - Qa3/1, RFGW-10 - Traffic - Qa3/2, RFGW-10 - Traffic - Qa3/3, RFGW-10 - Traffic - Qa3/9, RFGW-10 - Traffic - Qa3/10, RFGW-10 - Traffic - Qa4/1, RFGW-10 - Traffic - Qa4/2, RFGW-10 - Traffic - Qa4/3, RFGW-10 - Traffic - Qa4/9]

I did the snmpwalk and snmpget and it works!
Traffic without problem.

down.png (100.54 KiB) Viewed 5558 times

SNR, no graph, no real time too. -nan, template loaded successfully

snr.jpg (75.38 KiB) Viewed 5558 times

Mode debug

debug.jpg (69.1 KiB) Viewed 5558 times

Thanks for your help, comments.

[cigamit]

Seems your device doesn't support those OIDs. The OK at the bottom is saying the graph syntax is OK, which it is, your just getting no data because your devices are returning invalid responses when queried at that appropriate OID.

[darkleo27]

Thanks @cigamit , I'd like to know, How can I know (inside the device) if the device supports it or not. With snmpwalk o snmpget I have the information. Example:
snmpget -v2c -c tevenet 172.24.*.* .1.3.6.1.2.1.31.1.1.1.18.2000001
IF-MIB::ifAlias.2000001 = STRING: VILLAMARIA_OFICINA

[amcneal]

Thanks @cigamit , I'd like to know, How can I know (inside the device) if the device supports it or not. With snmpwalk o snmpget I have the information. Example:
snmpget -v2c -c tevenet 172.24.*.* .1.3.6.1.2.1.31.1.1.1.18.2000001
IF-MIB::ifAlias.2000001 = STRING: VILLAMARIA_OFICINA

if you are trying to graph the output of of your snmpget command you are going to have a bad time. In order to create a graph you have to get back a number, you are getting a string back.