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Well, I will be sure to test

Well, I will be sure to test this setting too.

And on next week we replace the faulty camera with a new one, and i will test with the faulty one and an another sg300 in lab environment.

And debug the negotiation phase with a C2960 for example to see what the camera does, why it ask class3 or why switch give class3 for this device.

 

I will post the results if i find something intresting or maybe the causes and solution.

 

Till then, thanks you for your useful help.

 

(Another question: Where should i ask manual or information about the SG300 debug-mode?)

Advocate

As far as I know, there's no

As far as I know, there's no debug-mode documentation available to public. Only Cisco know, there's a documentation of such mode at all ...

Advocate

Please allow me to rephrase

Short counters monitors the number of power shortages encountered on the powered ports.

Glenn thank you for the response. But please allow me to rephrase your response to verify I understand it in full. I'm in doubt what events are considered "power shortage".

If a power request from a newly connected port can't be satisfied because of overall power budged exhausted, a power may be removed from already powered less critical device (if there's any) to satisfy the request from more critical device. The
short counter" is incremented in such case.

True ?

Is it possible the power will be removed from device with the same priority ? E.g. from critical device because of request from other critical device ?

 

Cisco Employee

Hi Dan,True, you pretty much

Hi Dan,

True, you pretty much got it. It could be, however, you typically won't have all ports priority levels set to "CRITICAL", so it would compensate on the Low level ports. 

Advocate

With no doubt. But it may

With no doubt. But it may happen, thus the question is still here:

Is it possible the power will be removed from device with the same priority ? E.g. from critical device because of request from other critical device ?
Advocate

By the way, this may not be

.