Wired Intelligent Edge (Campus Switching and Routing)

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Frequent Contributor II

AOSCX - Shut does not remove power from the port?

Hi there,

 

I'm currently testing ArubaCX switch and face the following "behaviour":

- If I shut a port, the devices are still powered

- I can only remove power if I do a "no link-poe"

 

The problem here is that a "bounce" CoA will not remove power from a device. If I have a Computer behind a Phone, and I use dhcpv4snopping, the device will not re-ask dhcp because it will not sense the link went down. Because the phone never powers off.

 

Is this an expected behavior? All my other switches, Aruba or non Aruba, always shut down the power on "shut".

 

Thanks

Highlighted
MVP

Re: AOSCX - Shut does not remove power from the port?

so as you know we have always-on PoE enabled by default for 6300/6400s, which could produce this behaviour

show power-over-ethernet will display if its enabled.


If a reply adequately addresses your issue, please click on the "Accept as Solution"
Highlighted
Frequent Contributor II

Re: AOSCX - Shut does not remove power from the port?

Always On PoE is disabled.

Highlighted

Re: AOSCX - Shut does not remove power from the port?

More specifics please: What firmware release and which aruba switch ?


../smb/air (aka: aoscx-noob)
Frequent Contributor II

Re: AOSCX - Shut does not remove power from the port?

Switch. 6300M.

v. 10.04.0030

"no power-over-ethernet always_on " set for all modules.

Highlighted

Re: AOSCX - Shut does not remove power from the port?

Please respond with the output from:

 

show power-over-ethernet brief

 

Yes, I believe your earlier interpretation of what you gleaned from your previous research.


../smb/air (aka: aoscx-noob)
Highlighted
Aruba Employee

Re: AOSCX - Shut does not remove power from the port?

Good day!

Hello,

This is expected. We use same pair to carry data and poe.

  • Shutdown is for data 
  • No power-over-ethernet is for poe

Same is true in case of AOS-Switches.

By default PoE is enabled on all poe capable ports or LC.

If you want to remove PoE please use "No power-over-ethernet", if you want to shutdown data, then use shutdown.

 

Details below:

GOCRAZY# show power-over-ethernet 1/4/26

Status and Configuration Information for port 1/4/26

Power Enable : Yes PD signature : N/A
PoE Port Status : searching PD Type : N/A
Alloc-by Configured : usage Alloc-by Actual : usage
User Profile Priority : N/A Port Config Priority : Low
Port Priority : low Pre-std Detect : Disabled
PD Requested Class : N/A PSE Assigned Class : N/A
Fault Status : None User set Assigned Class : class4

PoE Counter Information

Over Current Cnt : 0 MPS Absent Cnt : 1
Power Denied Cnt : 0 Short Cnt : 0

Power Information

PSE Voltage : 0.00 V PSE Reserved power : 0.00 W
PD Current Draw : 0.00 A PD Power Draw : 0.00 W
PD Average Power Draw : 0.00 W PD Peak Power Draw : 0.00 W


LLDP Information

MED Override : Disabled
MED Priority : N/A
PSE TLV Configured : dot3/med
PSE TLV Sent Type : N/A
PD TLV Sent Type : N/A
PSE Allocated Power Value: 0.00 W
PD Requested Power Value : 0.00 W

GOCRAZY#

 

GOCRAZY(config)# interface 1/4/26
GOCRAZY(config-if)#
GOCRAZY(config-if)# no power-over-ethernet
GOCRAZY(config-if)#end

GOCRAZY#

GOCRAZY# show power-over-ethernet 1/4/26

Status and Configuration Information for port 1/4/26

Power Enable : No PD signature : N/A
PoE Port Status : disabled PD Type : N/A
Alloc-by Configured : usage Alloc-by Actual : usage
User Profile Priority : N/A Port Config Priority : Low
Port Priority : low Pre-std Detect : Disabled
PD Requested Class : N/A PSE Assigned Class : N/A
Fault Status : None User set Assigned Class : class4

PoE Counter Information

Over Current Cnt : 0 MPS Absent Cnt : 0
Power Denied Cnt : 0 Short Cnt : 0

Power Information

PSE Voltage : 0.00 V PSE Reserved power : 0.00 W
PD Current Draw : 0.00 A PD Power Draw : 0.00 W
PD Average Power Draw : 0.00 W PD Peak Power Draw : 0.00 W


LLDP Information

MED Override : Disabled
MED Priority : N/A
PSE TLV Configured : dot3/med
PSE TLV Sent Type : N/A
PD TLV Sent Type : N/A
PSE Allocated Power Value: 0.00 W
PD Requested Power Value : 0.00 W

 

Thank you,

Yash

 

Highlighted
Frequent Contributor II

Re: AOSCX - Shut does not remove power from the port?

Can I override this so that Shut and (Clearpass) Port Bounce turns off-on power of the port?

Need this to support clients connected to my Polycom phones.

Highlighted
Aruba Employee

Re: AOSCX - Shut does not remove power from the port?

Happy weekend!

 

Good request. AFAIK, currently not supported.

This is right enhancement feature, using AOS-CX REST API this should be possible. Please send your request to account team.

 

Thanks,

Yash

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