Re: [WIRELESS-LAN] Wii U

[Colleen Szymanik]

Anyone heard anything about the Wii U?  All I can find is that it'll be 
802.11b/g/n Wi-Fi, plus optional Ethernet connection via USB dongle.

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Re: [WIRELESS-LAN] Aruba AP Power Issue?

[Michael Hulko]

As a stop gap measure, we increased the available power to 25W on the port of 
the affected AP, assuming the switch can be configured.  We use HP.
This issue may have shortened the life of the AP, specifically the 5Ghz radios, 
but if an AP does go hard down, and if you have purchased the appropriate 
support, it's unfortunately nothing more than a RMA with Aruba to get them 
replaced.

MH

On 2012-11-07, at 3:32 PM, Kellogg, Brian D. wrote:

> We have been working with Aruba on this exact issue as well.  We have had the 
> custom build in place since last Friday morning.  We’ve lost one 105 since 
> the upgrade to the custom build, but nothing since.  What is hard to tell is 
> what APs were on the brink of failing before we installed the custom build.  
> Aruba support and sales has been extremely impressive to work with on this 
> issue, and when it comes to support I am not easily impressed.  We replaced 
> our Cisco install with Aruba here this summer.
>  
>  
> Fyi,
> Brian
>  
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
> [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Michael Hulko
> Sent: Wednesday, November 07, 2012 3:26 PM
> To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> Subject: Re: Aruba AP Power Issue?
>  
>  
> We have performed exhaustive troubleshooting with this particular issue.  We 
> tested several switches and found the problem to be the AP.  We have been 
> working with Aruba over the past several weeks (months) and they have 
> determined that the 5Ghz radio profile with the scanning option enabled, 
> causes this phenomena. When the radio comes off scanning, it sends a single 
> broadcast packet that pushes the power on the 5Ghz PA over the AF limits.  
> Aruba has provided a custom build which we are going to test and implement 
> tomorrow.  Aruba feels confident that the software change will solve the 
> issue.  They have performed an exhaustive engineering review of the 
> components and determined it to be software based.  
>  
> I will post results of our upgrade in the next couple of days.
>  
> Michael Hulko
>  
> On 2012-11-07, at 3:05 PM, Jason S. Cash wrote:
> 
> 
> On Wed, 7 Nov 2012, Chuck Enfield wrote:
> 
> 
> Hi Folks,
> We’re experiencing a significant number of problems where our PoE switches
> report that Aruba AP-105s are drawing more than 15.4W.  When this happens
> our switches shut off the power to the offending AP.  The problem is
> intermittent, but seems to occur repeatedly on the same APs, while never
> occurring on other APs.  Our diagnostics have eliminated excessive loss in
> the cabling as the culprit, which seems to leave two possibilities.  Either
> there are some Aruba AP-105s which are using more power than they are
> supposed to, or our switches are incorrectly measuring the power consumption
> of the APs.  If the APs are at fault, it’s unlikely that we would be the
> only ones with this problem.  Is anybody else having any issues with Aruba
> AP-105s drawing more than 15.4W?
> 
> Yes, We have a few ap105s sitting in a box with this exact issue. It doesn't 
> appear the be the switch in that we have seen it occur on both cisco 3560-X 
> and juniper ex3300 switches.
> 
> 
> Jason
> 
> 
> 
>  
> Thanks,
>  
> Chuck Enfield
> Sr. Communications Engineer
> Telecommunications & Networking Services
> The Pennsylvania State University
> 110H, USB2, UP, PA 16802
> ph: 814.863.8715
> fx: 814.865-3988
>  
>  
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/groups/.
>  
> 
> /*   Jason Cash  IT/Network and Systems Services
>   University of Delaware, Newark Delaware
> e:c...@udel.edu  v: 302-831-0461   */
> 
> **
> Participation and subscription information for this EDUCAUSE Constituent 
> Group discussion list can be found at http://www.educause.edu/groups/.
>  
> 
> 
> Michael Hulko
> Network Analyst
> 
> Western University Canada
> Network Operations Centre
> Information Technology Services
> 1393 Western Road, SSB 3300CC
> London, Ontario  N6G 1G9
> 
> tel: 519-661-2111 x81390
> e-mail: mihu...@uwo.ca 
>  
>  
> 
> 
> 
>  
> ** Participation and subscription information for this EDUCAUSE 
> Constituent Group discussion list can be found at 
> http://www.educause.edu/groups/.
> ** Participation and subscription information for this EDUCAUSE 
> Constituent Group discussion list can be found at 
> http://www.educause.edu/groups/.
> 



Michael Hulko
Network Analyst

Western University Canada
Network Operations Centre
Information Technology Services
1393 Western Road, SSB 3300CC
London, Ontario  N6G 1G9

tel: 519-661-2111 x81390
e-mail: mihu...@uwo.ca 






**
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discussion list can be found at http://www.educause.edu/groups/.

RE: Aruba AP Power Issue?

[Kellogg, Brian D.]

We have been working with Aruba on this exact issue as well.  We have had the 
custom build in place since last Friday morning.  We've lost one 105 since the 
upgrade to the custom build, but nothing since.  What is hard to tell is what 
APs were on the brink of failing before we installed the custom build.  Aruba 
support and sales has been extremely impressive to work with on this issue, and 
when it comes to support I am not easily impressed.  We replaced our Cisco 
install with Aruba here this summer.


Fyi,
Brian

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Michael Hulko
Sent: Wednesday, November 07, 2012 3:26 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: Aruba AP Power Issue?


We have performed exhaustive troubleshooting with this particular issue.  We 
tested several switches and found the problem to be the AP.  We have been 
working with Aruba over the past several weeks (months) and they have 
determined that the 5Ghz radio profile with the scanning option enabled, causes 
this phenomena. When the radio comes off scanning, it sends a single broadcast 
packet that pushes the power on the 5Ghz PA over the AF limits.  Aruba has 
provided a custom build which we are going to test and implement tomorrow.  
Aruba feels confident that the software change will solve the issue.  They have 
performed an exhaustive engineering review of the components and determined it 
to be software based.

I will post results of our upgrade in the next couple of days.

Michael Hulko

On 2012-11-07, at 3:05 PM, Jason S. Cash wrote:


On Wed, 7 Nov 2012, Chuck Enfield wrote:


Hi Folks,
We're experiencing a significant number of problems where our PoE switches
report that Aruba AP-105s are drawing more than 15.4W.  When this happens
our switches shut off the power to the offending AP.  The problem is
intermittent, but seems to occur repeatedly on the same APs, while never
occurring on other APs.  Our diagnostics have eliminated excessive loss in
the cabling as the culprit, which seems to leave two possibilities.  Either
there are some Aruba AP-105s which are using more power than they are
supposed to, or our switches are incorrectly measuring the power consumption
of the APs.  If the APs are at fault, it's unlikely that we would be the
only ones with this problem.  Is anybody else having any issues with Aruba
AP-105s drawing more than 15.4W?

Yes, We have a few ap105s sitting in a box with this exact issue. It doesn't 
appear the be the switch in that we have seen it occur on both cisco 3560-X and 
juniper ex3300 switches.


Jason




Thanks,

Chuck Enfield
Sr. Communications Engineer
Telecommunications & Networking Services
The Pennsylvania State University
110H, USB2, UP, PA 16802
ph: 814.863.8715
fx: 814.865-3988


** Participation and subscription information for this EDUCAUSE
Constituent Group discussion list can be found at
http://www.educause.edu/groups/.


/*   Jason Cash  IT/Network and Systems Services
  University of Delaware, Newark Delaware
e:c...@udel.edu  v: 302-831-0461   */

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Michael Hulko
Network Analyst

Western University Canada
Network Operations Centre
Information Technology Services
1393 Western Road, SSB 3300CC
London, Ontario  N6G 1G9

tel: 519-661-2111 x81390
e-mail: mihu...@uwo.ca 






** Participation and subscription information for this EDUCAUSE 
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http://www.educause.edu/groups/.

**
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RE: [WIRELESS-LAN] Aruba AP Power Issue?

[Chuck Enfield]

Thanks for the replies.  Our Aruba SE called and said that they have
identified the problem and are working on a fix.  If you're experiencing
this problem I suggest you contact Aruba TAC.

Chuck

-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jason S. Cash
Sent: Wednesday, November 07, 2012 3:05 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Aruba AP Power Issue?

On Wed, 7 Nov 2012, Chuck Enfield wrote:

> Hi Folks,
>
> We?re experiencing a significant number of problems where our PoE
switches
> report that Aruba AP-105s are drawing more than 15.4W.  When this
happens
> our switches shut off the power to the offending AP.  The problem is
> intermittent, but seems to occur repeatedly on the same APs, while never
> occurring on other APs.  Our diagnostics have eliminated excessive loss
in
> the cabling as the culprit, which seems to leave two possibilities. 
Either
> there are some Aruba AP-105s which are using more power than they are
> supposed to, or our switches are incorrectly measuring the power
consumption
> of the APs.  If the APs are at fault, it?s unlikely that we would be the
> only ones with this problem.  Is anybody else having any issues with
Aruba
> AP-105s drawing more than 15.4W?

Yes, We have a few ap105s sitting in a box with this exact issue.
It doesn't appear the be the switch in that we have seen it occur on both
cisco 3560-X and juniper ex3300 switches.


Jason


>
>  
>
> Thanks,
>
>  
>
> Chuck Enfield
>
> Sr. Communications Engineer
>
> Telecommunications & Networking Services
>
> The Pennsylvania State University
>
> 110H, USB2, UP, PA 16802
>
> ph: 814.863.8715
>
> fx: 814.865-3988
>
>  
>
>  
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/groups/.
>
>
>

/*   Jason Cash  IT/Network and Systems Services
University of Delaware, Newark Delaware
  e:c...@udel.edu  v: 302-831-0461   */

**
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Group discussion list can be found at http://www.educause.edu/groups/.

**
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discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] Aruba AP Power Issue?

[Michael Hulko]

We have performed exhaustive troubleshooting with this particular issue.  We 
tested several switches and found the problem to be the AP.  We have been 
working with Aruba over the past several weeks (months) and they have 
determined that the 5Ghz radio profile with the scanning option enabled, causes 
this phenomena. When the radio comes off scanning, it sends a single broadcast 
packet that pushes the power on the 5Ghz PA over the AF limits.  Aruba has 
provided a custom build which we are going to test and implement tomorrow.  
Aruba feels confident that the software change will solve the issue.  They have 
performed an exhaustive engineering review of the components and determined it 
to be software based.  

I will post results of our upgrade in the next couple of days.

Michael Hulko

On 2012-11-07, at 3:05 PM, Jason S. Cash wrote:

> On Wed, 7 Nov 2012, Chuck Enfield wrote:
> 
>> Hi Folks,
>> We’re experiencing a significant number of problems where our PoE switches
>> report that Aruba AP-105s are drawing more than 15.4W.  When this happens
>> our switches shut off the power to the offending AP.  The problem is
>> intermittent, but seems to occur repeatedly on the same APs, while never
>> occurring on other APs.  Our diagnostics have eliminated excessive loss in
>> the cabling as the culprit, which seems to leave two possibilities.  Either
>> there are some Aruba AP-105s which are using more power than they are
>> supposed to, or our switches are incorrectly measuring the power consumption
>> of the APs.  If the APs are at fault, it’s unlikely that we would be the
>> only ones with this problem.  Is anybody else having any issues with Aruba
>> AP-105s drawing more than 15.4W?
> 
> Yes, We have a few ap105s sitting in a box with this exact issue. It doesn't 
> appear the be the switch in that we have seen it occur on both cisco 3560-X 
> and juniper ex3300 switches.
> 
> 
> Jason
> 
> 
>>  
>> Thanks,
>>  
>> Chuck Enfield
>> Sr. Communications Engineer
>> Telecommunications & Networking Services
>> The Pennsylvania State University
>> 110H, USB2, UP, PA 16802
>> ph: 814.863.8715
>> fx: 814.865-3988
>>  
>>  
>> ** Participation and subscription information for this EDUCAUSE
>> Constituent Group discussion list can be found at
>> http://www.educause.edu/groups/.
>> 
> 
> /*   Jason Cash  IT/Network and Systems Services
>   University of Delaware, Newark Delaware
> e:c...@udel.edu  v: 302-831-0461   */
> 
> **
> Participation and subscription information for this EDUCAUSE Constituent 
> Group discussion list can be found at http://www.educause.edu/groups/.



Michael Hulko
Network Analyst

Western University Canada
Network Operations Centre
Information Technology Services
1393 Western Road, SSB 3300CC
London, Ontario  N6G 1G9

tel: 519-661-2111 x81390
e-mail: mihu...@uwo.ca 






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Re: [WIRELESS-LAN] Aruba AP Power Issue?

[Jason S. Cash]

On Wed, 7 Nov 2012, Chuck Enfield wrote:


Hi Folks,

We’re experiencing a significant number of problems where our PoE switches
report that Aruba AP-105s are drawing more than 15.4W.  When this happens
our switches shut off the power to the offending AP.  The problem is
intermittent, but seems to occur repeatedly on the same APs, while never
occurring on other APs.  Our diagnostics have eliminated excessive loss in
the cabling as the culprit, which seems to leave two possibilities.  Either
there are some Aruba AP-105s which are using more power than they are
supposed to, or our switches are incorrectly measuring the power consumption
of the APs.  If the APs are at fault, it’s unlikely that we would be the
only ones with this problem.  Is anybody else having any issues with Aruba
AP-105s drawing more than 15.4W?


Yes, We have a few ap105s sitting in a box with this exact issue. 
It doesn't appear the be the switch in that we have seen it occur on both 
cisco 3560-X and juniper ex3300 switches.



Jason




 

Thanks,

 

Chuck Enfield

Sr. Communications Engineer

Telecommunications & Networking Services

The Pennsylvania State University

110H, USB2, UP, PA 16802

ph: 814.863.8715

fx: 814.865-3988

 

 

** Participation and subscription information for this EDUCAUSE
Constituent Group discussion list can be found at
http://www.educause.edu/groups/.





/*   Jason Cash  IT/Network and Systems Services
   University of Delaware, Newark Delaware
 e:c...@udel.edu  v: 302-831-0461   */

**
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discussion list can be found at http://www.educause.edu/groups/.

RE: [WIRELESS-LAN] Aruba AP Power Issue?

[Chanowski, John]

I have one recent confirmed case of an AP105 drawing just north of 19W. The AP 
was also intermittently dropping off the network(that's the reason I found it 
was drawing 19W) so I thought something had to be wrong with it and replaced 
it. I have had several similar cases of AP105s intermittently but regularly 
dropping before this but never thought to check the power draw on them.

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Chuck Enfield
Sent: Wednesday, November 07, 2012 11:13 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Aruba AP Power Issue?

Hi Folks,

We're experiencing a significant number of problems where our PoE switches 
report that Aruba AP-105s are drawing more than 15.4W.  When this happens our 
switches shut off the power to the offending AP.  The problem is intermittent, 
but seems to occur repeatedly on the same APs, while never occurring on other 
APs.  Our diagnostics have eliminated excessive loss in the cabling as the 
culprit, which seems to leave two possibilities.  Either there are some Aruba 
AP-105s which are using more power than they are supposed to, or our switches 
are incorrectly measuring the power consumption of the APs.  If the APs are at 
fault, it's unlikely that we would be the only ones with this problem.  Is 
anybody else having any issues with Aruba AP-105s drawing more than 15.4W?

Thanks,

Chuck Enfield
Sr. Communications Engineer
Telecommunications & Networking Services
The Pennsylvania State University
110H, USB2, UP, PA 16802
ph: 814.863.8715
fx: 814.865-3988


** Participation and subscription information for this EDUCAUSE 
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Re: [WIRELESS-LAN] Aruba AP Power Issue?

[Michael Sjulstad]

We've had close to 5% of these AP 105's with the same problem.  I send them
in for a replacement and Aruba has been excellent in replacing them for
free.  Some were like this brand new, others did it after a year or more.


On Wed, Nov 7, 2012 at 10:13 AM, Chuck Enfield  wrote:

> Hi Folks,
>
> ** **
>
> We’re experiencing a significant number of problems where our PoE switches
> report that Aruba AP-105s are drawing more than 15.4W.  When this happens
> our switches shut off the power to the offending AP.  The problem is
> intermittent, but seems to occur repeatedly on the same APs, while never
> occurring on other APs.  Our diagnostics have eliminated excessive loss in
> the cabling as the culprit, which seems to leave two possibilities.  Either
> there are some Aruba AP-105s which are using more power than they are
> supposed to, or our switches are incorrectly measuring the power
> consumption of the APs.  If the APs are at fault, it’s unlikely that we
> would be the only ones with this problem.  Is anybody else having any
> issues with Aruba AP-105s drawing more than 15.4W?
>
> ** **
>
> Thanks,
>
> ** **
>
> Chuck Enfield
>
> Sr. Communications Engineer
>
> Telecommunications & Networking Services
>
> The Pennsylvania State University
>
> 110H, USB2, UP, PA 16802
>
> ph: 814.863.8715
>
> fx: 814.865-3988
>
> ** **
>
> ** **
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/groups/.
>
>


-- 
Michael Sjulstad -RML 258
Network/Electronics Engineer
Information/Instructional Technologies
St. Olaf College
Northfield, MN  55057

Ph: 507-786-3835
Email: sjuls...@stolaf.edu

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Aruba AP Power Issue?

[Chuck Enfield]

Hi Folks,

 

We're experiencing a significant number of problems where our PoE switches
report that Aruba AP-105s are drawing more than 15.4W.  When this happens
our switches shut off the power to the offending AP.  The problem is
intermittent, but seems to occur repeatedly on the same APs, while never
occurring on other APs.  Our diagnostics have eliminated excessive loss in
the cabling as the culprit, which seems to leave two possibilities.
Either there are some Aruba AP-105s which are using more power than they
are supposed to, or our switches are incorrectly measuring the power
consumption of the APs.  If the APs are at fault, it's unlikely that we
would be the only ones with this problem.  Is anybody else having any
issues with Aruba AP-105s drawing more than 15.4W?

 

Thanks,

 

Chuck Enfield

Sr. Communications Engineer

Telecommunications & Networking Services

The Pennsylvania State University

110H, USB2, UP, PA 16802

ph: 814.863.8715

fx: 814.865-3988

 

 


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