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problem with POE

REDES_UCHILE
Occasional Contributor

problem with POE

Hello,

I have a problem with 5130-48G-PoE+-4SFP+ EI, I'm using a iphone cisco 3905 with poe, so when I use speaker the phone is reboot. in the switch, i received this logg:

%Jan 1 01:37:53:509 2013 HP IFNET/5/LINK_UPDOWN: Line protocol on the interface GigabitEthernet1/0/2 is down.
%Jan 1 01:37:54:471 2013 HP POE/1/PSE_PORT_ON_OFF_CHANGE:
Trap <pethPsePortOnOffNotification>: PSE 4, IfIndex 2, Detection Status 1.

%Jan 1 01:37:57:900 2013 HP POE/1/PSE_PORT_ON_OFF_CHANGE:
Trap <pethPsePortOnOffNotification>: PSE 4, IfIndex 2, Detection Status 3.

 

Trap <pethPsePortOnOffNotification>: PSE 4, IfIndex 2, Detection Status 1.

%Jan 1 00:25:28:565 2013 HP POE/1/PSE_PORT_ON_OFF_CHANGE:
Trap <pethPsePortOnOffNotification>: PSE 4, IfIndex 2, Detection Status 3.

please I need to resolve this problem.

bye

 

more information:

Interface PoE Priority CurPower Oper IEEE Detection
(W) Class Status
GE1/0/1 Enabled Critical 1.9 On 0 Delivering Power
GE1/0/2 Enabled Low 1.9 On 0 Delivering Power
GE1/0/3 Enabled Low 0.0 Off 0 Searching
GE1/0/4 Enabled Low 0.0 Off 0 Searching
GE1/0/5 Enabled Low 0.0 Off 0 Searching

 

I think the problem is the IEEE class because the datasheet of the phone is class 1. I want to change that.

http://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-ip-phone-7940g/product_data_sheet09186a008008884a.html

 

 

5 REPLIES
parnassus
Honored Contributor

Re: problem with POE

The Cisco Unified SIP Phone 3905 supports IEEE PoE 802.3af (Class 1), that means it requires basically at most 4 Watt to be correctly powered.

Questions:

  1. Is the Cisco Unified SIP Phone 3905 running the latest available Firmware Release 9.4(1) SR2 (February 2016)?
  2. Is the HPE FlexNetwork 5130-48G PoE+ 4SFP+ (370W) EI Switch (JG937A) running the latest available Firmware R3113P05 (August 2016)?

Consider that Cisco fixed a bug on Firmware Release 9.4(1) of March, 2015 (read about its details here <- Login required for bug details) which looks similar to what you're experiencing:

Bug CSCud13126: "3905 Phones using more power than it's class allows during speaker phone"

Full 9.4(1) Release Notes is here.

List of 3905 Release Notes is here.

So - IMHO - checking your Cisco Unified SIP Phone 3905's Firmware status is the very first step to do.

Eventually check the PSE Firmware too, previously also here (read about it on these threads: here and here).

Note how the Cisco PoE issue cited above is so similar to the same issue Unify (formerly Siemens Enterprise Networks) had with its IP Phones: read this Support Information...so the usage of poe max-power command workaround should not be necessary if the Cisco 3905 strictly adhere to the IEEE 802.3af Standard.

REDES_UCHILE
Occasional Contributor

Re: problem with POE

Thank you for your answer, so:


1. We don't have the last firmware for phone 3905.
2. We have the latest firmware for switch HP.


We need to wait for the update for Call Manager.

 

 

parnassus
Honored Contributor

Re: problem with POE

Well...at this point,

  1.  :-(
  2.  :-)

so...good luck with Call Manager update!

VoIP-Buddy
Trusted Contributor

Re: problem with POE

In the display poe pse report, what version of the POE code are you running?  The latest version is 145 and that should work with the Comware version you have loaded.

Regards,

David

parnassus
Honored Contributor

Re: problem with POE

Yet advised about that (see my first answering post above), the OP didn't answered (or, better, it answered that its Switch is yet OK on that part)...as usual.