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Half our POE phones do not power up ex2200-c

‎08-17-2012 01:29 PM

We have some shoretel 230g poe phones.  All phones work fine with Adtran switches.  About 50% of them work on the Juniper and I'm not sure why.  I already contated tech support,  they looked at the switch then issued an RMA.  New switch has the same problem.

 

I have the switch sitting here in front of me with two poe phones.  One phone works fine no matter which port it's plugged into.  The other phone does not work no matter which port is used. But they both work on an adtran and an 3com switch so I'm not sure why the ex2200-c isn't working.  Any ideas before I return the switch?  The switch is running 12.1R2.9

12 REPLIES 12
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Re: Half our POE phones do not power up ex2200-c

[ Edited ]
‎08-17-2012 01:53 PM

If I switch from class to static management then both phones power up but only on ports ge-0/0/0 thru ge-0/0/2.  The other ports no longer work.

 

By the way, the max power on the first 3 ports is show as 30.0W.  The other ports show 0.0W and those are the ports that don't work.  I tried setting max power to 30.0W on one of those ports and commit changes but it stays at 0.0W. 

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Re: Half our POE phones do not power up ex2200-c

‎08-20-2012 12:45 PM

This is a shot in the dark - is it possible that some of the Shoretel phones are not 802.af compliant?

 

For example, we have some ProCurve switches with some Mitel VoIP phones where we have to use a command that enables pre-802.af support for PoE devices.

 

If the devices are not 802.af (or .at) this might be the cause of the problem.

 

Other than that I would have to think something weird in the configuration or something about the Shortel hardware somewhere that Junos/hw doesn't like.

 

 

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Re: Half our POE phones do not power up ex2200-c

‎08-22-2012 12:33 PM

For what it's worth we have a 2200-C with three IP212K phones, no problems there or on other switches with 230g's. It's running 11.4R1.6.

 

> show lldp neighbors
Local Interface Parent Interface Chassis Id Port info System Name
ge-0/0/7.0 - 10.x.xx 00:10:49:04:62:21 Serial Number: 001049046221
ge-0/0/5.0 - 10.x.x.x 00:10:49:0c:65:fe Serial Number: 0010490C65FE
ge-0/0/10.0 - 10.x.x.x 00:10:49:0c:65:fc Serial Number: 0010490C65FC

 

>show poe controller
Controller Maximum Power Guard Management Status
index power consumption band
0 100.00W 28.60W 0W Class AT_MODE

 

> show poe interface ge-0/0/7
PoE interface status:
PoE interface : ge-0/0/7
Administrative status : Enabled
Operational status : ON
Power limit on the interface : 7.0W
Priority : Low
Power consumed : 3.4W
Class of power device : 2

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Re: Half our POE phones do not power up ex2200-c

‎08-22-2012 01:00 PM

What happens when you move one of these phones to the problem switch/problem port?

 

Anything in the switch log when you do this?

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Re: Half our POE phones do not power up ex2200-c

‎09-19-2012 12:16 PM

I'm having this same problem with WAPs.  Only 6 can have power at one time.  I have 9 plugged in, if I unplug one that has power, one that didn't suddenly comes up.

 

ex2200-c> show poe controller
Controller  Maximum   Power         Guard    Management  Status
index       power     consumption   band
   0        100.00W   63.60W          0W     Class       AT_MODE

 

It never allows more than 63.60 even though it says it can go 100.

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Re: Half our POE phones do not power up ex2200-c

‎09-21-2012 08:14 AM

The specs say it has 180W of power, but it only has a max allocation for 100W.

Even with that, it's a little deceiving because I can't get it to give out more than 70W.

 

The best I've been able to do is power 9 WAPs by setting poe static to 10W.

 

set poe management static
set poe interface all maximum-power 10

 

If I set it to 9W then I can get 10 WAPs, but with less power the signal degrades.  It might be fine for your phones though...

 

 

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Re: Half our POE phones do not power up ex2200-c

[ Edited ]
‎07-11-2013 06:52 AM

Hi guys,

I got the same problem... does juniper has answer to this?

 

Why we need to allocate power statically if normally it should work automatically?

 

And why ... you removed J-Web interface from ex2200-c?

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Re: Half our POE phones do not power up ex2200-c

‎07-16-2013 02:04 AM

Just one guess, but did you try to upgrade the POE controller already?

 

request system firmware upgrade poe fpc-slot all-members

 You can monitor the update status with

 

show poe controller

 

Cheers,

Simon

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Re: Half our POE phones do not power up ex2200-c

‎11-24-2013 08:03 AM

Was there ever a resolution to this?  I'm working on a similar issue.  Smiley Frustrated

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Re: Half our POE phones do not power up ex2200-c

‎11-26-2013 05:19 PM

Here is what you could look at. Are you using a crossover cable? This is a know limitation with some IP phones. My suggestion is to use crossover cable for all IP phones when using the EX2200

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If this solution worked for you please flag my post as an "Accepted Solution" so others can benefit..]
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Re: Half our POE phones do not power up ex2200-c

‎09-12-2014 02:30 AM

I had exactly the same issue with APs. I couldn't get more than a few APs powered on a 48 port poe switch. Even if the "show poe controller" showed that there was plenty of available power.

In CLASS mode a 48 port switch with a 405W PSU will only be able to provide power to about 25 ports if the devices are Class 0 or 3. My APs were detected as class 3, requiring 15.4 watts on each port.  (the lower numbered ports seem to get priority, so if you plug in 25 devices in the higher numbered ports and then plug the 26th into port 0 then one of the other ports will power down.)

To get around this, I changed the managed mode to static and set the maximum power on each port to 10w, allowing 40 ports to operate. This is will work ok so long as your devices dont require more than 10W, but I guess you can fiddle with the figures to suit. It feels like a bit of a bodge, but it was the only way I could get things working.

 

To change from CLASS to STATIC mode:

S1#set poe management static

S1#set poe interface ge-0/0/0 maximum-power 10w (repeat this for each port you want powered)

 

 

To show what power is being used on each port:

S1#run show poe interface

 

 

 

 

 

 

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Re: Half our POE phones do not power up ex2200-c

‎09-12-2014 03:10 AM

Another admin recently upgraded the software and upgraded the poe firmware and that fixed his issue. Search trhe forum and check out the version. compare to your poe version

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If this solution worked for you please flag my post as an "Accepted Solution" so others can benefit..]
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