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Impossible to monitor CPU and RAM on MOXA switch EDS-516A & EDS-408A

  • 9 January 2024
  • 6 replies
  • 102 views
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Hello,

I need to monitor industrial MOXA switches but I can’t get CPU and RAM (can’t get a single value).

I took a look at the centreon_moxa_switch_snmp.pl and found the section network/moxa/switch/snmp/mode/cpu.pm which lists the corresponding OID for the model of the switch:

  my $mapping = {
      iks6726a    => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.116.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.116.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.116.1.55' }
      },
      eds405a => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.6.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.6.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.6.1.55' }
      },
      edsp506e => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.162.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.162.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.162.1.55' }
      },
      edsp506a => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.41.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.41.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.41.1.55' }

The model of the switch I use is not listed and I think this is the reason why I cannot get the value in the monitoring. This the same for the memory.

Can you help me ?

Regards.

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Best answer by vcoum 9 January 2024, 17:47

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vcoum
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Hello,

What is the model of your Moxa switches?

Edit: My bad didn’t see it was on the title

 

 

 

vcoum
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What you need first is to find the OIDs corresponding to your switches models  EDS-516A and EDS-408A

Moxa root OID seems to be .1.3.6.1.4.1.8691.7 and the next OID correspond to the model

What you can do is try a snmpwalk to your switches, one of each model, to find the OID, like this

snmpwalk -v SNMPVERSION -c COMMUNITY SWITCH_IP 1.3.6.1.4.1.8691.7

If snmp is setup on your switches, you will have a big output

You need to find the OID after 7 to get the OID corresponding to your switch model

 

If your able to get the model, you can also try a snmpget on the complete OID for CPU

snmpget -v SNMPVERSION -c COMMUNITY SWITCH_IP 1.3.6.1.4.1.8691.7.OID_MODEL.1.53

 

Then you will have to add it to the available models on network/moxa/switch/snmp/mode/cpu.pm (and memory), like this

  my $mapping = {
      iks6726a    => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.116.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.116.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.116.1.55' }
      },

      eds516a    => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.MODEL_OID.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.MODEL_OID.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.MODEL_OID.1.55' }
      },

      eds408a    => {
          cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.MODEL_OID.1.53' },
          cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.MODEL_OID.1.54' },
          cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.MODEL_OID.1.55' }
      },

Careful, you also have to add the model just below with other in the manage_selection function

 

And then you can try if it works with your plugin

 

Sorry i don’t have any MOXA to test all this, but i hope it will helps you at least

 

D
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Hi vcoum,

I found the 3 OID needed to monitor the CPU, I’m searching the ones for the memory (I have values that does not exactly reflect what I can observe on the switch internal logs but I’m on the way).

Do you know how can I contact somebody to send this information to be included in the Centreon maintained plugin ?

thanks a lot.

Regards.

vcoum
Rank
Userlevel 5
Badge +11

Hi @DIAMFred ,

IMO your best chance is to open an issue on Centreon Plugins Github (or make a Pull Request)

Regards

 

rchauvel
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@DIAMFred, once done, please submit your PR and we will process it. If you cannot do this, then you can PM @omercier and see how to proceed to make changes officially available.

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Here are the lines to add to the MOXA plugin to be able to monitor CPU & RAM on model EDS406A and EDS-516A:

CPU:

in section network/moxa/switch/snmp/mode/cpu.pm

my $mapping = {

add the following lines

eds408a => {

cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.7.1.53' },

cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.7.1.54' },

cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.7.1.55' }

},

eds516a => {

cpu_load5s => { oid => '.1.3.6.1.4.1.8691.7.11.1.53' },

cpu_load1m => { oid => '.1.3.6.1.4.1.8691.7.11.1.54' },

cpu_load5m => { oid => '.1.3.6.1.4.1.8691.7.11.1.55' }

},

and a little further down in the script

sub manage_selection {

values(%{$mapping->{eds408a}}),
values(%{$mapping->{eds516a}}),

RAM:

in section network/moxa/switch/snmp/mode/memory.pm

my $mapping = {

add the following lines

eds408a => {

total => { oid => '.1.3.6.1.4.1.8691.7.7.1.56' },

free => { oid => '.1.3.6.1.4.1.8691.7.7.1.57' },

used => { oid => '.1.3.6.1.4.1.8691.7.7.1.58' }

},

eds516a => {

total => { oid => '.1.3.6.1.4.1.8691.7.11.1.56' },

free => { oid => '.1.3.6.1.4.1.8691.7.11.1.57' },

used => { oid => '.1.3.6.1.4.1.8691.7.11.1.58' }

},

and a little further down in the script

sub manage_selection {

values(%{$mapping->{eds408a}}),
values(%{$mapping->{eds516a}}),

 

I also contacted @omercier to see if it is possible to add them officially.

Thanks for all.

Regards.

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