[USG Flex H - uOS 1.39] - SNMP OID missing

Maverick87

Hello everyone,
After update my 500H to the newest uOS, the OID about the "Forward Active Session" (1.3.6.1.4.1.890.1.15.3.1.19.0) are missing.

Also, seems that are missing also the Memory Usage (1.3.6.1.4.1.890.1.15.3.2.5.0); now to calculate the memory usage % I need to reading the total memory (1.3.6.1.4.1.2021.4.5.0) and the available (1.3.6.1.4.1.2021.4.6.0), then I use this formula:

((total-available)/total) * 100

Also, already from the old firmware version, the load of Core 3 and 4 are fixed to 100%

Core3: 1.3.6.1.2.1.25.3.3.1.2.196610
Core4: 1.3.6.1.2.1.25.3.3.1.2.196611

Can you confirm that the Core 3 and 4 are fixed to 100%?
Also, how about the missing Forward Active Session and the Memory Usage %?

Thank you

Zyxel_Melen

Hi @Maverick87

Let me help to check OID 1.3.6.1.4.1.890.1.15.3.1.19.0 and 1.3.6.1.4.1.890.1.15.3.2.5.0.

The Core 3 and 4 are fast path CPU, use the public OID will get the wrong result.

Please use sysMgmtFPCPUUsage(.1.3.6.1.4.1.890.1.15.3.2.21 in ZYXEL-ES-COMMON > esSysMgmt) to get the information. Additionally, this OID will provide the average CPU usage of Core 3 and 4.

Maverick87

Hi Melen,

also in the GUI the Core 3&4 are 0%, and seems that the memory usage is more or less 34.2/34.4%

With my calculation I've more memory usage than this:

For calculate this, I use the formula:

Device Memory Usage = ((total-available)/total) * 100

Total OID: 1.3.6.1.4.1.2021.4.5.0 (8.147.344 KiB)
Available OID: 1.3.6.1.4.1.2021.4.6.0

Is this correct? Why throught my formula, seems that the % is more than the GUI?

In some cases, seems that the GUI show CPU 3&4 loads:

So seems that the Core3&4 works; why there isn't an official Core3&4 OIDs?

Thank you

Zyxel_Melen

Hi @Maverick87

The formula needs to adjust since .1.3.6.1.4.1.2021.4.6.0 is MemFree, not MemAvailable.

((1 - <.1.3.6.1.4.1.2021.4.6.0> - <.1.3.6.1.4.1.2021.4.14.0> - <.1.3.6.1.4.1.2021.4.15.0>) / <.1.3.6.1.4.1.2021.4.5.0>) * 100

why there isn't an official Core3&4 OIDs?

The MIB sysMgmtFPCPUUsage(.1.3.6.1.4.1.890.1.15.3.2.21 in ZYXEL-ES-COMMON > esSysMgmt) is the official OID. Do you mean the OID the individual Core 3 & 4 CPU usage?

Maverick87

Hi Melen,

Thank you, proceed to modify my formula.

For the missing OIDs of Core3&4, yes, why there aren't the OIDs for the individual core? Can be implemented?

Maverick87

Hi Melen,
I check better your formula

((1 - <.1.3.6.1.4.1.2021.4.6.0> - <.1.3.6.1.4.1.2021.4.6.0> - <.1.3.6.1.4.1.2021.4.6.0>) / <.1.3.6.1.4.1.2021.4.5.0>) * 100

But seems that you reply the OID 1.3.6.1.4.1.2021.4.6.0 more that one. Could you tell me if the formula is correct?

Thank you

Zyxel_Melen

https://community.zyxel.com/en/discussion/comment/86282#Comment_86282

Hi @Maverick87

Sorry it is .1.3.6.1.4.1.2021.4.14.0 and .1.3.6.1.4.1.2021.4.15.0. I also notice the error of the formula, please check the new formula below:

((<.1.3.6.1.4.1.2021.4.5.0> - <.1.3.6.1.4.1.2021.4.6.0> - <.1.3.6.1.4.1.2021.4.14.0> - <.1.3.6.1.4.1.2021.4.15.0>) / <.1.3.6.1.4.1.2021.4.5.0>) * 100

Zyxel_Melen

Hi @Maverick87

Additionally, the OID 1.3.6.1.4.1.890.1.15.3.1.19.0 and 1.3.6.1.4.1.890.1.15.3.2.5.0 malfunction is because the V1.39 enhancement. It will be fixed in next firmware release.

Maverick87

https://community.zyxel.com/en/discussion/comment/86314#Comment_86314

Hi Melen,

can you fix the problem and release to me the beta firmware? So I don't wait a lot.

Another question: when you fix the 1.3.6.1.4.1.890.1.15.3.2.5.0, is not anymore necessary the calculation formula, right?

Thank you

Maverick87

Hi Melen,
I've tried your formula, but seems there are some distances about the real used memory %, probably missing something.