Monitoring MSM system metrics with SNMP/MRTG

[pt307]

Hi,

I'm trying to chart our MSM765zl's CPU and RAM utilisation over a period of time using MRTG. The MIB Reference Guide suggests using .1.3.6.1.4.1.8744.5.21.1.1.5 for current usage and .1.3.6.1.4.1.8744.5.21.1.1.10 for available system RAM, however they don't seem to exist on the controller:

$ snmpget -v2c -c public 192.168.100.248 .1.3.6.1.4.1.8744.5.21.1.1.5
iso.3.6.1.4.1.8744.5.21.1.1.5 = No Such Instance currently exists at this OID

$ snmpget -v2c -c public 192.168.100.248 .1.3.6.1.4.1.8744.5.21.1.1.10
iso.3.6.1.4.1.8744.5.21.1.1.10 = No Such Instance currently exists at this OID

In fact there doesn't seem to be much at all in the 8744 tree:

$ snmpwalk -v2c -c public 192.168.100.248 | grep 8744

iso.3.6.1.2.1.1.2.0 = OID: iso.3.6.1.4.1.8744.1.47
$

Am I missing something obvious? Is anyone else successfully charting system metrics in MRTG/Cacti/etc?

Paul

[JesseR]

I use PRTG for monitoring at many customers.  I have had the same questions about PRTG and MSMs.  Perhaps we can collaborate on this and figure it out?

[Matt Marcos]

We use this OID

1.3.6.1.4.1.8744.5.21.1.1.5.0

from:

COLUBRIS-USAGE-INFORMATION-MIB :: coUsInfoCpuUseNow
Name coUsInfoCpuUseNow
MIB COLUBRIS-USAGE-INFORMATION-MIB
Oid 1.3.6.1.4.1.8744.5.21.1.1.5.0

Path iso . org . dod . internet . private . enterprises . colubris . colubrisMgmtV2 . colubrisUsageInformationMIB . colubrisUsageInformationMIBObjects . coUsageInformationGroup . coUsInfoCpuUseNow . 0
Base-Type Integer
Value-Ranges  0 to 4294967295
Description
"Current CPU usage."

This is also a good one, gets the current amount of connected wireless clients.

1.3.6.1.4.1.8744.5.25.1.7.2.0

coDeviceWirelessClientStatusGroup
MIB COLUBRIS-DEVICE-WIRELESS-MIB
Oid 1.3.6.1.4.1.8744.5.25.1.7.2.0
Path iso . org . dod . internet . private . enterprises . colubris . colubrisMgmtV2 . colubrisDeviceWirelessMIB . colubrisDeviceWirelessMIBObjects . coDeviceWirelessClientStatusGroup . 2 . 0
Index / Unknown 2.0

See the attached pic for an example of both, CPU is the top one.

cheers,

Matt.

[pt307]

Thanks Matt. Looks like MRTG needed the .0 at the end of the OID... oops :)

Clients connected will definitely be a handy one too.

Paul

[JesseR]

Also, has anyone been able to monitor the traffic of each Radio1 and Radio2 for a given AP?  I've tried adding the AP and associated radios, but the name displayed VERY generic, it only shows an index # like 33853 or 34772, etc.  It doesn't tell me the actuall AP device name (for example, the serial number) and Radio itself.  Do you know what I mean?    (I have found that, if I turn sFlow on the MSM controller, the AP device names DO show properly but... I'd rather not enable sFlow if I don't have to).

I can provide screenshots to explain this better...

J

[JesseR]

Can anyone point me to the right MIB file to monitor the # of client connections on a given AP/radio?  Having trouble finding whih MIB to use?

JR

[JesseR]

Just an FYI.  the MIB file you need to get the # of associated clients on a Controlled AP's Radio is "COLUBRIS-DEVICE-WIRLESS-MIB.my".   It seems to be working well for me right now.

Once I imported it into my PRTG monitoring software using their MIB importer, it ended up looking like this:

<?xml version="1.0" encoding="ISO8859-1" ?>

  <oidlist>

    <system>

      <version>

        1

      </version>

    </system>

    <list>

      <entry>

        <name>

          COLUBRIS-DEVICE-WIRELESS-MIB|co device wireless interface status: #[1.3.6.1.4.1.8744.5.23.1.2.1.1.2]|co dev wir if sta number of client: #[1.3.6.1.4.1.8744.5.25.1.2.1.1.1]

        </name>

        <oid>

          1.3.6.1.4.1.8744.5.25.1.2.1.1.9

        </oid>

        <type>

          vmAbsolute

        </type>

        <kind>

          mkTable

        </kind>

        <unittype>

          sutCustom

        </unittype>

        <units>

          #

        </units>

        <indicator>

          co dev wir if sta number of client

        </indicator>

        <scale>

          1

        </scale>

        <multiply>

          no

        </multiply>

        <max>

          0

        </max>

        <usegetnext>

          no

        </usegetnext>

        <is64bit>

          no

        </is64bit>

        <isunsigned>

          yes

        </isunsigned>

        <isfloat>

          no

        </isfloat>

        <description>

          Identifies the number of associated wireless clients.

        </description>

      </entry>

    </list>

  </oidlist>

[Glen Pill]

Hi,

Thanks for the info, they work great.

I don't suppose you have an OID for the number of connected AP's into a team?

Thanks,

Glen.

[JesseR]

Sorry, I never needed that info via SNMP so don't have an answer for you.

JR

Need help with MSM deployments?

http://h30499.www3.hp.com/t5/MSM-Series/MSM-Deployment-Scenario-How-To-Guide/td-p/5717081