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Cisco Employee

Ap 3700 PoE with PSE that does not support CDP/LLDP power Negotiation

 

We run into a problem when AP 3700 is connected to an 802.3at PSE

that only supports physical event classification as compliant to 802.3at standard for PSE,

but does not support CDP/LLDP power negotiation.

AP 3700 (I believe the firmware version does not matter much) cannot get enough power after not receiving any CDP/LLDP power negotiation packet. (get no more than 15W power although PSE supports 30W.)

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1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

An another possible use case

An another possible use case is to power up 3700 with 3rd party power injector that does not h
ave any CDP/LLDP power negotiation support.

Cisco does NOT produce power injector, instead, the Cisco gets the power injector from Phihong USA.

3 REPLIES
Hall of Fame Super Gold

An another possible use case

An another possible use case is to power up 3700 with 3rd party power injector that does not h
ave any CDP/LLDP power negotiation support.

Cisco does NOT produce power injector, instead, the Cisco gets the power injector from Phihong USA.

Cisco Employee

Hi Leo,Thanks for the

Hi Leo,

Thanks for the information, and do you know if Phihong power injector supports 802.3at LLDP power negotiation or not?

And is there any special configuration on AP3700 side like disabling CDP/LLDP power negotiation to make it to work with such power injector,  and what is the command if there is any?

Thanks again, Leo.

 

Hall of Fame Super Gold

Phihong power injectors can

Phihong power injectors can support 30.0w.  

 

I've got some APs running on their power injectors (looks IDENTICAL) to the ones sold by Cisco.  

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