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Author Topic: Total PoE with 1.0.9-010  (Read 2690 times)

Hannu Liljemark

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Total PoE with 1.0.9-010
« on: January 17, 2014, 06:40:41 AM »
I noticed quite a big drop in the total poe graph after updating to 1.0.9-010. It's not a big deal but I'm just wondering what happened? I thought it was because usepoe seems to default to ifmib and I tried that, but going back to disprot I still don't see the same numbers that 1.0.8 was displaying.

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Hannu

rickli

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Re: Total PoE with 1.0.9-010
« Reply #1 on: January 17, 2014, 11:32:52 AM »
I've added power-ethernet MIB support, which allows for PoE budget calculation (the battery icon in Devices-Status). Unfortunately PSE refers to modules not PS in a chassis switch! Not sure how this can be changed...

On the other hand, the usage should be more accurate than relying on the interfaces. Sometimes switches just report 15.4W, but the real consumption is much less. Do you have devices doing this? It would explain the drop and maybe you find an OID which reports the actual consumption.
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Hannu Liljemark

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Re: Total PoE with 1.0.9-010
« Reply #2 on: January 17, 2014, 08:17:23 PM »
Okay I see these S and P after 1.3.6.1.4.1.9.9.402.1.2.1.7 on the IFpowr line in the def. What are those? I'm just wondering why WS-C3560-24PS reports the total poe but WS-C3560-48PS doesn't. I'm using the same IPpowr and IFpwix settings for both.

rickli

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Re: Total PoE with 1.0.9-010
« Reply #3 on: January 17, 2014, 09:48:28 PM »
This is a good topic for the "NeDi Documentation Project"...

Go to Defgen for the device in question. Next to the Size field is a new selectbox and 2 buttons for testing. Choosing straight will add a P, Cisco-Stack an S and Module an M to the ifpoe line (I know it's cluttered, but I didn't have a better idea at the time of writing).

The 1st testbutton shows whether this MIB is supported at all. You should see total PSE power, if so.
The 2nd testbutton shows PoE is admin status on the interfaces. If the indexes match the if-indexes, you can select straight from that select box. Devices-Status allows you to enable and disable PoE on those devices, if SNMP write access is provided. Unfortunately Cisco uses this Stack-Mib and I haven't found a way to map to if-indexes...
« Last Edit: January 17, 2014, 10:50:43 PM by rickli »
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Hannu Liljemark

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Re: Total PoE with 1.0.9-010
« Reply #4 on: January 18, 2014, 09:05:27 AM »
Thanks! Now I'm almost seeing the old numbers in the total poe graph. I guess bunch of Cisco defs just needed the IFpowr and IFpwix oids and straight or stackmib selection for the ifpoe. I'll try to post list of the defs and their changes once I'm done. So far I've only looked at networks with Cisco devices.

Hannu Liljemark

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Re: Total PoE with 1.0.9-010
« Reply #5 on: January 20, 2014, 11:18:09 PM »
Before I forget, here's a (very confusing) list of what seems to be working for my "usepoe ifmib" setup. I've listed the ifpowr and ifpwix lines and then which def file I think I have modified from what 1.0.9-010 had.

IFpowr  1.3.6.1.4.1.9.9.402.1.2.1.7     P
IFpwix  1.3.6.1.4.1.9.5.1.4.1.1.11
1.3.6.1.4.1.9.1.614.def
1.3.6.1.4.1.9.1.616.def
1.3.6.1.4.1.9.1.1148.def
1.3.6.1.4.1.9.1.1016.def
1.3.6.1.4.1.9.1.1021.def
1.3.6.1.4.1.9.1.950.def


IFpowr  1.3.6.1.4.1.9.9.402.1.2.1.9.1   S
IFpwix  1.3.6.1.4.1.9.5.1.4.1.1.11.1
1.3.6.1.4.1.9.1.563.def
1.3.6.1.4.1.9.1.564.def


IFpowr 1.3.6.1.4.1.9.9.402.1.2.1.7     S
IFpwix 1.3.6.1.4.1.9.5.1.4.1.1.11
1.3.6.1.4.1.9.1.1208.def
1.3.6.1.4.1.9.1.1228.def
1.3.6.1.4.1.9.1.1229.def