Re: [WIRELESS-LAN] Cisco 3700 AP

[Peter P Morrissey]

I agree, especially since there likely aren't any clients capable of 4 streams. 
I would be thrilled to be proven wrong on that though. Seems like new Macs 
would be most likely possibilities as they do tend to be ahead on these types 
of things in spite of all their other wireless issues.

Pete Morrissey

Sent from my iPad

On Oct 3, 2013, at 8:13 PM, "James Andrewartha"  
wrote:

> On 04/10/13 05:23, Andy Page wrote:
>> For those interested, Cisco released information about their new 3700
>> series access point with built-in 802.11ac. Likely won’t be able to
>> purchase it for at least a month or so.
>> 
>> http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/data_sheet_c78-729421.html
> 
> They almost got it into a 802.3af power budget, except it runs in 3x3:3
> MIMO instead of 4x4:3 which shouldn't make too much of a difference.
> 
> -- 
> James Andrewartha
> Network & Projects Engineer
> Christ Church Grammar School
> Claremont, Western Australia
> Ph. (08) 9442 1757
> Mob. 0424 160 877
> 
> **
> Participation and subscription information for this EDUCAUSE Constituent 
> Group discussion list can be found at http://www.educause.edu/groups/.

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Participation and subscription information for this EDUCAUSE Constituent Group 
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RE: [WIRELESS-LAN] Cisco 3700 AP

[Andy Page]

We may buy a few of these, however we are still working to replace our 1131's 
and finish rolling out 802.11n. 

I will be curious to see how the price of these compare to a 3600 + 802.11ac 
module.

Andy

-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Peter P Morrissey
Sent: Friday, October 04, 2013 8:09 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Cisco 3700 AP

I agree, especially since there likely aren't any clients capable of 4 streams. 
I would be thrilled to be proven wrong on that though. Seems like new Macs 
would be most likely possibilities as they do tend to be ahead on these types 
of things in spite of all their other wireless issues.

Pete Morrissey

Sent from my iPad

On Oct 3, 2013, at 8:13 PM, "James Andrewartha"  
wrote:

> On 04/10/13 05:23, Andy Page wrote:
>> For those interested, Cisco released information about their new 3700 
>> series access point with built-in 802.11ac. Likely won't be able to 
>> purchase it for at least a month or so.
>> 
>> http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/da
>> ta_sheet_c78-729421.html
> 
> They almost got it into a 802.3af power budget, except it runs in 
> 3x3:3 MIMO instead of 4x4:3 which shouldn't make too much of a difference.
> 
> --
> James Andrewartha
> Network & Projects Engineer
> Christ Church Grammar School
> Claremont, Western Australia
> Ph. (08) 9442 1757
> Mob. 0424 160 877
> 
> **
> Participation and subscription information for this EDUCAUSE Constituent 
> 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/.

**
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Re: [WIRELESS-LAN] Cisco 3700 AP

[Dan Brisson]

New Macbook Air's already have 802.11ac radios.

If you have 3560X PoEs, you're all set since they do PoE+.

-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
dbris...@uvm.edu

On 10/4/13 8:09 AM, Peter P Morrissey wrote:

I agree, especially since there likely aren't any clients capable of 4 streams. 
I would be thrilled to be proven wrong on that though. Seems like new Macs 
would be most likely possibilities as they do tend to be ahead on these types 
of things in spite of all their other wireless issues.

Pete Morrissey

Sent from my iPad

On Oct 3, 2013, at 8:13 PM, "James Andrewartha"  
wrote:


On 04/10/13 05:23, Andy Page wrote:

For those interested, Cisco released information about their new 3700
series access point with built-in 802.11ac. Likely won’t be able to
purchase it for at least a month or so.

http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/data_sheet_c78-729421.html

They almost got it into a 802.3af power budget, except it runs in 3x3:3
MIMO instead of 4x4:3 which shouldn't make too much of a difference.

--
James Andrewartha
Network & Projects Engineer
Christ Church Grammar School
Claremont, Western Australia
Ph. (08) 9442 1757
Mob. 0424 160 877

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

**
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RE: [WIRELESS-LAN] Cisco WiSM2 Association issues

[Foerst, Daniel P.]

Hi Everyone,

Thanks for all the interesting insight and troubleshooting attempts.

My colleague is still struggling with this issue and the only benefit thus far 
is that his android is affected. So thankfully we have a good test candidate. 
He has been working with TAC and I don't know what debug information he has 
seen, but I do know that TAC "believes everything is okay and it should work"! 
Clearly it is not. He cannot associate on an Open SSID, or a Secured SSID with 
WPA2 AES/PSK.

We are not running IPv6, so this was globally disabled already. And the most 
recent attempt was that we had that changed was Allow AAA Override to become 
unchecked. This did not resolve the issue either.

While I can tolerate a person or two having issues, it is the unknown of how 
many more are out there who will have issues. We had plans to begin moving 
buildings using WiSM1 controllers over to the new WiSM2 controllers and I am 
very reluctant to do that now.

I suspect/hope this case will be escalated soon and If we find a solution I 
will share it with everyone here. In the meantime if you have other ideas, 
please let me know!

Thanks!

Daniel Foerst
Assistant Director, Networks & Security
The Catholic University of America
Washington, DC 20064


From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] on behalf of Jithin Kesavan 
[j.kesa...@unsw.edu.au]
Sent: Tuesday, October 01, 2013 11:04 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Cisco WiSM2 Association issues

Hi Daniel,

We here at UNSW have been experiencing similar issues for the past few weeks, 
ever since we upgraded WLC code from 7.2 to 7.5.

Basically, what we have found is that this is affecting only Android version 
4.1.2 e.g.: Samsung S3 or Galaxy Note 2 etc.
Samsung S4 or Galaxy Note 3 running Android 4.2.2 is not affected in our case.

We have a mix of different SSIDs. The main one runs 802.1x/WPA2 authenticating 
against a bunch of radius servers. We have other SSIDs using Web authentication 
and Pre-shared keys.
We even tried on our test SSIDs with open access.
Irrespective of the security setting on the WLAN, the device attempts to 
connect, fails and eventually comes up with "Authentication error occurred".

We have a test WiSM2 running 7.2 code. As soon as we move the AP to the test 
WiSM2, the device can connect without any issues.

Last week we raised a TAC request and ran some debug outputs which showed the 
following:


IPv6_Msg_Task: Sep 24 12:01:38.564: 90:18:7c:a8:6b:de Link Local address 
fe80::9218:7cff:fea8:6bde updated to mscb. Not Advancing pem state.Current 
state: mscb in apfMsMmInitial mobility state and client state APF_MS_STATE_A

*SNMPTask: Sep 24 12:08:04.220: 90:18:7c:a8:6b:de Central Switch = TRUE

*SNMPTask: Sep 24 12:08:04.220: 90:18:7c:a8:6b:de Central Switch = TRUE

TAC engineer suggested disabling IPv6 globally on the controllers which at the 
time fixed the issue; only for the issue to resurface after a few days.

The only thing is I don't see anything in particular from the debug client  command on the controller.

I have re-opened the TAC case, and am waiting for their response.

One thing to note is that Android 4.2.2 devices were experiencing similar 
issues when it was first reported to us, but there was a software update for 
4.2 which came sometime in the last month or so, after which the problem seems 
to have disappeared.

Cheers
Jithin


Jithin Kesavan
Senior Network Engineer
UNSW IT

THE UNIVERSITY OF NEW SOUTH WALES
UNSW SYDNEY NSW 2052 AUSTRALIA
Phone: +61 2 9385 1154
Mobile: 040 171 3334
Email: j.kesa...@unsw.edu.au
Website: http://www.it.unsw.edu.au





On 1/10/13 7:05 AM, "Foerst, Daniel P." mailto:foe...@cua.edu>> 
wrote:

Hi all,

We are experiencing an odd issue as of late. A client with an Android device 
(HTC One) is able to associate to a wireless access point joined to a Cisco 
WiSM1 controller that is running 7.0.235.3 code, but when the AP is joined to a 
WiSM2 with 7.5.0 code it is unable to join. The most I have heard that it 
attempts to connect until ultimately it gives up. If the AP is migrated back to 
a WiSM1 the issue clears and the client is able to associate, receive and IP 
address, and use the network.  The WLAN is an open SSID currently operating 
without any security so we know that isn't interfering.

A TAC case has been opened to investigate this issue, however I wanted to see 
if anyone else has experienced this yet.

Typically I wouldn't give it much thought, but it we have also seen some of our 
student base experience this same issue with a Windows 8 tablet (not sure if it 
was RT or not). Where my colleague and his HTC one is able to move the AP back 
to a WiSM1 and work around the issue, the student doesn't have that luxury as 
all APs in his/her residence hall are 2602e APs and require a WiSM2 controller. 
Af

RE: [WIRELESS-LAN] Cisco 3700 AP

[Peter P Morrissey]

Right. But do they do 4x4?
Pete

-Original Message-
From: Dan Brisson [mailto:dbris...@uvm.edu] 
Sent: Friday, October 04, 2013 8:39 AM
To: The EDUCAUSE Wireless Issues Constituent Group Listserv
Cc: Peter P Morrissey
Subject: Re: [WIRELESS-LAN] Cisco 3700 AP

New Macbook Air's already have 802.11ac radios.

If you have 3560X PoEs, you're all set since they do PoE+.

-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
dbris...@uvm.edu

On 10/4/13 8:09 AM, Peter P Morrissey wrote:
> I agree, especially since there likely aren't any clients capable of 4 
> streams. I would be thrilled to be proven wrong on that though. Seems like 
> new Macs would be most likely possibilities as they do tend to be ahead on 
> these types of things in spite of all their other wireless issues.
>
> Pete Morrissey
>
> Sent from my iPad
>
> On Oct 3, 2013, at 8:13 PM, "James Andrewartha"  
> wrote:
>
>> On 04/10/13 05:23, Andy Page wrote:
>>> For those interested, Cisco released information about their new 
>>> 3700 series access point with built-in 802.11ac. Likely won't be 
>>> able to purchase it for at least a month or so.
>>>
>>> http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/d
>>> ata_sheet_c78-729421.html
>> They almost got it into a 802.3af power budget, except it runs in 
>> 3x3:3 MIMO instead of 4x4:3 which shouldn't make too much of a difference.
>>
>> --
>> James Andrewartha
>> Network & Projects Engineer
>> Christ Church Grammar School
>> Claremont, Western Australia
>> Ph. (08) 9442 1757
>> Mob. 0424 160 877
>>
>> **
>> 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/.

**
Participation and subscription information for this EDUCAUSE Constituent Group 
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Re: [WIRELESS-LAN] Cisco 3700 AP

[Randy Ethridge]

This says Macbook Air chipset can do 3 streams but is configured to use 2.

http://www.anandtech.com/show/7085/the-2013-macbook-air-review-13inch/9



Randy Ethridge 
Network Engineer V 
Information Services 
Eastern Illinois University 
rlethri...@eiu.edu 

Office Ph. 217-581-7640 

Proud to say "I am EIU" 

EIU THINKS GREEN: Before printing this e-mail think if it is necessary 

- Original Message -
From: "Peter P Morrissey" 
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Sent: Friday, October 4, 2013 8:00:00 AM
Subject: Re: [WIRELESS-LAN] Cisco 3700 AP

Right. But do they do 4x4?
Pete

-Original Message-
From: Dan Brisson [mailto:dbris...@uvm.edu] 
Sent: Friday, October 04, 2013 8:39 AM
To: The EDUCAUSE Wireless Issues Constituent Group Listserv
Cc: Peter P Morrissey
Subject: Re: [WIRELESS-LAN] Cisco 3700 AP

New Macbook Air's already have 802.11ac radios.

If you have 3560X PoEs, you're all set since they do PoE+.

-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
dbris...@uvm.edu

On 10/4/13 8:09 AM, Peter P Morrissey wrote:
> I agree, especially since there likely aren't any clients capable of 4 
> streams. I would be thrilled to be proven wrong on that though. Seems like 
> new Macs would be most likely possibilities as they do tend to be ahead on 
> these types of things in spite of all their other wireless issues.
>
> Pete Morrissey
>
> Sent from my iPad
>
> On Oct 3, 2013, at 8:13 PM, "James Andrewartha"  
> wrote:
>
>> On 04/10/13 05:23, Andy Page wrote:
>>> For those interested, Cisco released information about their new 
>>> 3700 series access point with built-in 802.11ac. Likely won't be 
>>> able to purchase it for at least a month or so.
>>>
>>> http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/d
>>> ata_sheet_c78-729421.html
>> They almost got it into a 802.3af power budget, except it runs in 
>> 3x3:3 MIMO instead of 4x4:3 which shouldn't make too much of a difference.
>>
>> --
>> James Andrewartha
>> Network & Projects Engineer
>> Christ Church Grammar School
>> Claremont, Western Australia
>> Ph. (08) 9442 1757
>> Mob. 0424 160 877
>>
>> **
>> 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/.

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

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RE: [WIRELESS-LAN] Wireless NAT & Tools for tracking DMCA reports

[Adam T Ferrero]

  We have 17k+ concurrent wireless clients and 100% are private IPs.  We then 
NAT at the firewall.  We also purposefully block peer to peer with fairly good 
success.  But, when we get an infringement notice or virus report or a subpoena 
for information we have had a challenge.  We only get one - three per month, so 
the volume is very low.

  We figure we are legally obligated to be able to identify every person on our 
network due to the Higher Ed Opportunity Act (HEOA).  It's a financial aid law, 
but there are a few paragraphs in there that say we need to identify everyone.  
We have no open guest wireless partly because of it (open wireless to 
onboarding guests via sending them a password via SMS text message and then all 
users switch to WPA2 enterprise offering).

  Regarding DMCA stuff, our strategy has been to use netflow.  We netflow from 
our internet routers (now 1:1 sample and they see the public addresses), from 
the firewalls (1:100 sample and should see public and private conversations), 
and from our core routers inside the firewall (1:100 sample should see private 
IP).

  We often just get a timestamp and our public IP and port.  We attempt to map 
that to a destination and then search netflow for that destination and 
timestamp.  We are missing a small percentage of these and are struggling to 
close that gap.  Some folks have suspected our 1:100 sample rate is causing us 
to miss data, but I can't push it down to 1:1 on all the gear.  It's always the 
inside that we miss so it's possible its true.

  Adam

[Adam T  Ferrero2]

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<><><>

Re: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

[Dennis Xu]

There was a post on Cisco support forum about DCA interval and some senior 
contributors (not Cisco guys though) suggested to set it to 24 hours. I tried 
to search for it now but could not find it. We did have the AP channel change 
issues which affected about 50 APs at once. We thought the default 10 minutes 
interval is too aggressive and 24 hours is too long. We started with 1 hour to 
see how it went and we haven't had any issues. 

---
Dennis Xu
Analyst 3, Network Infrastructure
Computing and Communications Services(CCS)
University of Guelph

519-824-4120 Ext 56217
d...@uoguelph.ca 
www.uoguelph.ca/ccs

- Original Message -
From: "Don Sullivan" 
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Sent: Thursday, October 3, 2013 3:48:08 PM
Subject: Re: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

Can I ask what led to making this change? I am struggling trying to understand 
moving from a default of 10 minutes to 24 hours and the impact. I have been 
reading the documentation and reference for this setting in trying to determine 
if this is something I should implement but there is very little detail 
concerning the timer/interval. Based on the replies, 24 hours seems to be the 
choice and yet I cannot find through a google search why this is better. 
Appreciate any feedback given.

Thanks,

Don Sullivan 
Network Administrator | Office: 205.726.2111 | email: dsulli...@samford.edu



-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mark Duling
Sent: Thursday, October 03, 2013 1:00 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

A long time ago I increased the interval for this up to a pretty high setting 
from the default (I think it was 10 min) at the suggestion of TAC engineer to 
stop them from changing channels so frequently.

802.11x > RRM > Dynamic Channel Assignment (DCA)

I have no evidence that there is any issue with it, but a lot has changed since 
then.  What intervals do others use for DCA?

**
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RE: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

[Sullivan, Don]

In response to my question yesterday, a Cisco engineer who is heavily involved 
in RRM sent me information in response to my question which has been very 
helpful to me in understanding what is occurring and whether I should be making 
any changes based on what I am observing. If you would like for me to forward 
this information to you please let me know and I will be happy to. I will tell 
you that he confirmed what one person had stated in one of the earlier emails 
that at code above release 6 there is no good reason to change the default 
interval.


Don Sullivan 
Network Administrator | Office: 205.726.2111 | email: dsulli...@samford.edu


-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Dennis Xu
Sent: Friday, October 04, 2013 10:34 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

There was a post on Cisco support forum about DCA interval and some senior 
contributors (not Cisco guys though) suggested to set it to 24 hours. I tried 
to search for it now but could not find it. We did have the AP channel change 
issues which affected about 50 APs at once. We thought the default 10 minutes 
interval is too aggressive and 24 hours is too long. We started with 1 hour to 
see how it went and we haven't had any issues. 

---
Dennis Xu
Analyst 3, Network Infrastructure
Computing and Communications Services(CCS) University of Guelph

519-824-4120 Ext 56217
d...@uoguelph.ca
www.uoguelph.ca/ccs

- Original Message -
From: "Don Sullivan" 
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Sent: Thursday, October 3, 2013 3:48:08 PM
Subject: Re: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

Can I ask what led to making this change? I am struggling trying to understand 
moving from a default of 10 minutes to 24 hours and the impact. I have been 
reading the documentation and reference for this setting in trying to determine 
if this is something I should implement but there is very little detail 
concerning the timer/interval. Based on the replies, 24 hours seems to be the 
choice and yet I cannot find through a google search why this is better. 
Appreciate any feedback given.

Thanks,

Don Sullivan
Network Administrator | Office: 205.726.2111 | email: dsulli...@samford.edu



-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mark Duling
Sent: Thursday, October 03, 2013 1:00 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Cisco WLC dynamic channel assignment (DCA) interval

A long time ago I increased the interval for this up to a pretty high setting 
from the default (I think it was 10 min) at the suggestion of TAC engineer to 
stop them from changing channels so frequently.

802.11x > RRM > Dynamic Channel Assignment (DCA)

I have no evidence that there is any issue with it, but a lot has changed since 
then.  What intervals do others use for DCA?

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

**
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Re: [WIRELESS-LAN] Cisco 3700 AP

[mike . albano]

Agree, PHY data rates and IP throughput are not the same. Even in Wave 2, the requirement for 160MHz wide channels makes >1Gbps (actual) questionable. You will not oversubscribe your 1Gig wired connection with Wave 1 802.11ac devices.-The EDUCAUSE Wireless Issues Constituent Group Listserv  wrote: -To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDUFrom: Frank Sweetser Sent by: The EDUCAUSE Wireless Issues Constituent Group Listserv Date: 10/03/2013 06:54PMSubject: Re: [WIRELESS-LAN] Cisco 3700 APYou can't do a direct apples to oranges comparison between wired and wireless bandwidth. Remember, that wired connection is one gig in each direction for an aggregate of two gig of bandwidth, compared with the total half duplex 1.3 (in ideal conditions) on wave 1.
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.Tony Juarez  wrote:
The 802.11ac supports 1.3GB, but the AP only has a 1GB wired connection.802.11ac with 4x4 multiple-input multiple-output(MIMO) technology with three spatial streams, offering sustained1.3-Gbps rates over a greater range for more capacity and reliabilitythan competing access points.Interfaces€ 10/100/1000BASE-T autosensing (RJ-45)€ Management console port (RJ-45)On 10/3/13 8:12 PM, "James Andrewartha" wrote:On 04/10/13 05:23, Andy Page wrote:For those interested, Cisco released information about their new 3700series access point ! withbuilt-in 802.11ac. Likely won¹t be able topurchase it for at least a month or so.http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/data_sheet_c78-729421.htmlThey almost got it into a 802.3af power budget, except it runs in 3x3:3MIMO instead of 4x4:3 which shouldn't make too much of a difference.-- James AndrewarthaNetwork & Projects EngineerChrist Church Grammar SchoolClaremont, Western AustraliaPh. (08) 9442 1757Mob. 0424 160 877**Participation and subscription information for this EDUCAUSE ConstituentGroup discussion list can be found at http://www.educause.edu/groups/.**Participation and subscription information for this EDUCAUSE Constituent Group discuss! ion listcan be found at http://www.educause.edu/groups/.
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