1552 in P-MP acting as 802.11a Wireless Bridge with single antenna SISO

Can you configure three Cisco 1552EUs to act as a RAP and two MAPs in a bridge only Point to Multipoint configuration.
I'd like to disable two of the 5Ghz antenna ports and use just a single TX/RX port and a single directional antenna for each AP.
Does this simply reduce the system gain because you lose the MRC MIMO advantage / gain of either 1.7 or 4.7db (depending on qty of spatial streams).
Also, are the 1552EU's backward compatible with the Cisco 1310's in the configuration mentioned above.
Thanks for any comments.

The transfer speeds sound about right. The "54Mbps" is a signaling rate, not a throughput.
To make 802.11 wireless "reliable" (comparable to a wired network) the data is, in effect, sent twice and staggered such that a glitch usually doesn't get both.
In terms of throughput of your data, a strong signal with good signal quality, using IP, unencrypted should run ~22-26Mbps (some variability for noise/interference, mixed frame sizes, TCP ACK times, application responses, etc).
So, at ~24 Mbps (megabits per second) you're looking at ~4 megabytes per second versus 100Mbps/12.5mBps as a probable max rate.
Given that, a transfer that takes approximately one minute on a wired network under typical conditions ... having it take four-to-five minutes on a typical wireless system is about right.
For power settings, you can adjust the power by monitoring the RSSI values on the receiving system. If I can find the docs on Cisco's main site I'll post 'em up later (gotta run ...), but if the mechanical install is good, then it'll just be a little keyboard work.
Good Luck
Scott

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Does airport extreme 802.11a/c work with airport express 802.11n

does airport extreme 802.11a/c work with airport express 802.11n

"You can use the AirPort Express to extend the signal provided by the new AirPort, but the Express will not extend "ac" wireless since it does not have that capability. The Express will extend an "n" wireless signal if that helps."
This is what I am trying to understand.
So AXTRM w/ sep SSID for 2.4 (b/g/n) - call it SSID1 - and 5GHz (ac) call it SSID2 - WiFi Explorer confirms AC mode on 5G.
Using an AXPRESS to extend - I have the option of SSID1 b/g/n *and* the 5GHz ac SSID2 in the pulldown (it sees both?) --> if I select SSID1, it also extends this same SSID in 5GHz (both showing b/g/n) >> so I now have 3 signals on SSID1 (XTRM 2.4G, XPRS 2.4G and XPRS 5G) b/g/n and one signal on SSID2 (XTRM 5G AC) ac
If I select the 5Ghz ac SSID2 to extend - it prompts me "do you also want to extend (the 2.4GHz SSID1)?" --> select yes and I now have 2 signals for SSID (XTRM 2.4G & XPRS 2.4G) b/g/n and 2 signals on SSID2 (XTRM 5G 802.11ac & XPRS 5G 802.11 a//n)
Is the 5G SSID2 actually being extended from the Airport Extreme to the Express?
The reason I bring this up is I am having a lot of issues since iOS8 came out (especially on iPhone 6). Everything I am reading is pointing to when people have 2 AP's set to use the same SSID. When you walk to a part of the house where 5G 802.11 ac signal marginalizes, the phone does not immediately hand over to the 5G 802.11 a/n Airport Express.
My thought was separate the SSID's but to me, if the Express can't extend 5Ghz from the Extreme, it's taking a step backwards. I am better off getting a more powerful router like an ASUS and going with one AP, drop the WiFi roaming altogether
Any thoughts?

Is there any 802.11n wireless bridge or some bridge throughput close to 100M?

Hi All,
I'm looking for some enterprise wireless bridge. Is there any cisco 802.11n wireless bridge on the market? or some bridge close to 100Mbps throughput? Thanks.
Lou

Hi;
I'm investigating the exact same thing. After seeing the caveat in the 1250 install guide that said "Don't use it as a bridge!" (http://www.cisco.com/en/US/docs/wireless/access_point/1250/installation/guide/125h_c1.html) , I called the Cisco WiFi sales engineer assigned to our region, the brilliant and lovely Ms. K.
She clarified some items for me.
802.11n relies on several things for increased speed, two of which are multiple spacial data streams (currently two) and the 40MHz increased channel width. When you do point-point, apparently there is just not as much multipoint benefit. She said we would be lucky to see more than 50 Mbps real throughput on a bridge using 1252s at 100m range. BTW, she said that even though the install guide says the 1252s could not be used in bridge mode, she thought it would work; perhaps the 2007 guide is outdated.
So, we are going to get some antennas and test this. Will try to report back on the results.
Regarding Exalt, she did confirm that at present Cisco is re-branding and selling them as OEM and support would be direct through Exalt, not TAC. She would not speculate on looming acqusitions, but did jokingly observe that in the past, all the companies that Cisco absorbed went through an OEM re-sell phase ;p
http://www.exaltcom.com/sublanding.aspx?id=1512
Steve

802.11a Mesh Outdoors with 5500 controller

Hi
I am working on a project that will involve 5500 controllers managing 1260 series N rate A/Ps. There may be a requirement for MESH but my previous experience using Motorola 802.11a radios is that random, intermittent radio detections resulted in the MESH network having to keep re-forming resulting in less than 100% availability.
What's peoples experience in the UK is 802.11a outdoors?
Ideally i would prefer to use 2.4GHz and repeater access points for those areas not serviced with data connection but I cant find any info' so far on how whether the 5500 controller is able to manage repeater access points.
Any guidance or experiences much appreciated
Steve

I don't live or have done work in the UK so can't answer your first question, but for your other question... The wlc does not manage any APs configured as a repeater.
Sent from Cisco Technical Support iPhone App

802.1x Wireless Authentication with 10.8.4 Build 12E3067

Hello All,
Work in a school and we use 802.1x authentication for Wi-Fi and access to our server and Staff wireless VLAN. We use a login window profile that authenticates with our Active Directory.
Previous and working set up was MBA (Mid 2012) 5,1. Running OS 10.8.4 build 12E55. This OS was downloaded from Mac App Store. Bound to domain and using authorization certificates for our active directory controllers. Created Wi-Fi 802.1x authentication profile with Profile Manager on 10.8 server. No issue. Units authenticate with server at user login, join Wi-Fi and mounts home folder.
New and not working set up is MBA (Mid 2013) 6,2 running OS 10.8.4 build 12E3067. This unit will not run build 12E55, boots to prohibitory sign. Unit is set up with same certificates and 802.1x profile. When first booting up the Wi-Fi signal appears to be attached to the network, unlike previous setup when unit will Wi-Fi indicator will appear disconnected until user logs in. 90% of the time new units will not authenticate. States unable to connect to server and then loads into mobile user account. Will not attached to Wi-Fi. There are instances when it does authenticate properly. However logging out and then back in will cause the failure.
Also note, I have made an image of the 6,2 MBA with build 12E3067 and installed in on MBA 5,1. Same Failure happens. This leads me to believe the issue lies in OS 10.8.4 build 12E3067.
Troubleshooting:
-I have taken OS build 12E3067 on MBA 6,2 (failing to authenticate) and removed Wi-Fi profile. Unit authenticates over Ethernet with no issue. Add profile back and issue surfaces.
-Created new profile using profile manager and issue continues. Verified proper certificates are being used. Would the previous profile
-Restarted domain controllers. Issue continues.
Any thoughts or questions would be appreciated.

did you find any resolution to this? our mba- mid 2013 deployment is having a very similar problem. We've gone through loads of troubleshooting and have yet to come to a resolution. all our mid 2012 mba's are working fine they're 10.7.5/10.8.4 mixed. console logs don't show much, i'll try the wireless diags tomorrow. our other 10.8.4 build appears fine on other models of machines. i've read posts about deleteing the adapters, deleting the system config plists and changing the mtu size, these steps do not work for us.
we don't have as high a failure rate with our deployment, but 25%-30% of our clients randomly drop connectivity and are unable to reconnect (fluttering wi-fi wave). when you slect the wifi symbol in the menu bar other wireless networks do not show, the 'looking for networks' fly wheel continues to spin. ocasionaly on login the yellow jelly bean will appear then disappear before finally timeing out without logging the user in (depsite having mobile accounts enabled). mostly the problem manifests itself when waking from sleep - the wifi symbol flutters endlessly without connecting. deleting the 8021x profile and readding it will reenable connectivity. we've tried new profiels, but to the same end. i know our certs and systems are fine because previous mac os x builds work fine as do our windows clients.
any input would be much appreciated.

Adding 802.1x Wireless networks with a script

Hi,
We have some new wireless networks we've set up for students to use (I work in a University). The networks use 802.1x authentication, and WPA2-Enterprise encryption. Adding Macs with various versions of OSX isn't a big issue, but it's time-consuming. Users need to follow an instruction sheet, and the process is prone to errors.
I'm looking for a method to give users some sort of download to run, which can just add the SSID for our wireless LAN with the minimum of fuss. I've dug around and found various things, but I'm a little perplexed as to how best to go around it. I've seen things suggesting an AppleScript would be able to do it, but I'm no AppleScript export, so some sort of example would be nice.
Any pointers gratefully received.

did you find any resolution to this? our mba- mid 2013 deployment is having a very similar problem. We've gone through loads of troubleshooting and have yet to come to a resolution. all our mid 2012 mba's are working fine they're 10.7.5/10.8.4 mixed. console logs don't show much, i'll try the wireless diags tomorrow. our other 10.8.4 build appears fine on other models of machines. i've read posts about deleteing the adapters, deleting the system config plists and changing the mtu size, these steps do not work for us.
we don't have as high a failure rate with our deployment, but 25%-30% of our clients randomly drop connectivity and are unable to reconnect (fluttering wi-fi wave). when you slect the wifi symbol in the menu bar other wireless networks do not show, the 'looking for networks' fly wheel continues to spin. ocasionaly on login the yellow jelly bean will appear then disappear before finally timeing out without logging the user in (depsite having mobile accounts enabled). mostly the problem manifests itself when waking from sleep - the wifi symbol flutters endlessly without connecting. deleting the 8021x profile and readding it will reenable connectivity. we've tried new profiels, but to the same end. i know our certs and systems are fine because previous mac os x builds work fine as do our windows clients.
any input would be much appreciated.

802.1x Wireless Implementation with NPS - Guest computers access

Hi guys,
I have a 802.1x network using NPS services in Windows server 2012 that I am testing right now with Windows 7 machines. Everything seems to be fine with corporate computer (connection and authentication are good). But I have an issue with guest computer (i.e
personal laptop). I am able to connect to my Enterprise wireless connection using my corporate credentials. Even if my personal laptop don't have any corporate certificate, the connection is granted because I use my credentials. Is there a way to use User
certificate AND computer certificate for wireless at the same time? So that personal laptop will not have access to the enterprise wireless network even if I enter my corporate credentials.
Let me know if you need more information.
Thank you

Hi,
One way to solve it would be to only allow "Domain Computers" or another computer Group in the NPS policy and then create a corresponding Group policy to only authenticate to the wireless with the computer account.
Another way would be to actually use the user certificate (instead of secured password that you are using now). That would require you to autoenroll user certificates though.
See screenshots above on alternative 1 and 2.
Microsoft Certified Trainer
MCSE: Desktop, Server, Private Cloud, Messaging
Blog: http://365lab.net

802.1x wireless authentication with certificates

Hi.
I have configured and working 802.1x authentication with certificates for Wired connections. with no problem.
when i try to authenticate the same machine with 802.1x and certificates , on Wirelss, the ACS rejects it with:
"12520 EAP-TLS failed SSL/TLS handshake because the client rejected the ACS local-certificate."
the ACS is the same, the certificate the same, and the root ca is the same.
what's hapenning????
Antero Vasconcelos

What supplicant are we using for wireless authentication? Do we have complete chain of certificates installed on the client machine? Can you check if we have root CA/intermediate correctly installed in client and ACS.
~BR
Jatin Katyal
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Wireless bridging is not working in 1552 outdoor access point and 2602e indoor access point.

Hi,
I am have been tested wireless bridging with 2 indoor Cisco 2602 access point by following the attached document and its working fine without any issue.
After then I made one Cisco 1552 EU-M-K9 outdoor access point as RAP, then connect to this RAP with one 2602 mesh access point. But its not working, mesh access point is just start scan the signal to get associate with RAP, but not getting established. Is there any specific configuration required to connect between outdoor and indoor access point. Kindly find the attachment and advise.
regards,
Jubair.S

Hi Team,
Any suggestion??
Regards,
Jubair.S

Cisco ap3700 802.11ac wireless brigde

Can i use the 3702e with ios software and a directional antenne as an 802.11ac wireless bridge for inter-building connectivity ? What is the expected speed of a wireless bridge link with a typical inter-building distance of 40 to 60 m ?

Product information has not yet released to say this AP model can use as wireless bridge. Typically 3700 AP is not target for wireless bridge solution. Here is the datasheet available for this product.
http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps13367/data_sheet_c78-729421.html
You have to do a test & confirm data rates & performance you get in your environment.
HTH
Rasika
**** Pls rate all useful responses ****

17" mbp no longer sees a 802.11a Linksys router...

I have one of the early 17" MBP. It used to work with a old 802.11a (Linksys) router. Lately it doesn't see the router at all. I've reset the router and another Windows machine can see it fine. I didn't do anything funny other than apply patches and firmware upgrades. Any help is appreciated.
Thanks
Macbook Pro 17" Mac OS X (10.4.7)

Maybe its helpful you to know that the 802.11a standard wasn't totally supported by Apple at the begining (read http://www.appleinsider.com/article.php?id=1465) so probably those patches did change something.
Have you tried different frequencies on the router?
Chris

Cisco Systems vs "CSIRO" 802.11a and 802.11g infringed upon the '069 patent

Hi,
any news about Cisco Systems and the "CSIRO" 802.11a and 802.11g infringed upon the '069 patent ?
http://www.buffalotech.com/products/wireless/
Dear Customer
As you may be aware, Commonwealth Scientific and Industrial Research Organisation ("CSIRO") sued Buffalo, Inc. and Buffalo Technology (USA), Inc. ("Buffalo"), for alleged infringement of United States Patent No. 5,487,069 ("the '069 patent"). Subsequently, CSIRO also asserted its patent against the entire wireless LAN industry, including, Microsoft, Intel, Accton, SMC and Netgear.
In it's lawsuit against Buffalo, CSIRO claimed certain Buffalo wireless networking products compliant with IEEE standards 802.11a and 802.11g infringed upon the '069 patent. Buffalo believed at that time and continues to believe that there are no grounds for CSIRO's allegations of infringement. The United States district court, however, found Buffalo to infringe the '069 patent and enjoined the importation and sale of Buffalo's IEEE 802.11a and 802.11g compliant products.
CSIRO's lawsuits are against the entire wireless LAN industry and could affect the supply of wireless LAN products by any manufacturer, not just Buffalo. The entire industry is resisting CSIRO's attempts to enjoin the sale of wireless LAN products. Recently, Microsoft, 3COM Corporation, SMC Networks, Accton Technology Corporation, Intel, Atheros Communications, Belkin International, Dell, Hewlett-Packard, Nortel Networks, Nvidia Corporation, Oracle Corporation, SAP AG, Yahoo, Nokia, and the Consumer Electronics Association filed briefs in support of Buffalo's position that injunctive relief is inappropriate in this case.
During the period of time that the injunction is in effect (10/1/2007), Buffalo cannot offer for sale, sell, import, or use its IEEE 802.11a and 802.11g compliant products in the United States. A list of the products covered by the injunction is attached here . The injunction does not prohibit sales of pre-existing inventories of products by Buffalo's customers. In addition, Buffalo has secured CSIRO's agreement to permit the replacement of defective products under warranty. None of Buffalo's other products are currently affected by this injunction.
While Buffalo believes that it will be successful in reversing the district court's decision and will obtain a stay of the injunction pending a decision on the merits, the Court of Appeals has not yet issued a decision. Should the Court of Appeals issue a decision staying the injunction, you will be promptly notified. After the stay is issued or a favorable decision on the merits is obtained, Buffalo will be able to resume the supply of IEEE 802.11a and 802.11g products
Please rest assured that Buffalo continues to stand behind their products and will continue to support all of our loyal customers as it relates to product warranties, technical support and the like without interruption.

I suspect after reading the patent and the litigation that you mentioned above, that the US District Court decision will be reversed as the patent appears to be very vague in its contsruction and verbage. Furthermore, the intent to hold the IEEE hostage on the ratification of 802.11n will not bode well in the court's eyes. If in fact the case is reversed, I believe that the members of CSIRO will be in danger of lost profits litigation from Buffalo. Stay tuned to this bat channel.

What's the difference between using and 802.11a and 5GHz only?

What's the difference between using "802.11n (802.11a compatible)" and "802.11n only (5GHz)" modes on the Airport Extreme?

802.11a gives you 802.11g speeds but using 5GHz (54mbps
802.11n gives you 144Mbps (600 peak) at 2.4GHz or 5GHz

Unstable Wireless Bridge Connection via 802.11a(Radio 1) of Aironet 1242

Hi,
I'm going to setup up an AP 1242 in a remote area to support b/g client via a 802.11a bridge link (all using AP 1242).
Before the deployment, I tested the configuration in a lab environment. However, I found the bridge link will come up a while and suddenly gone. Resetting the root AP or the non-root AP cannot bring the connection up again. Sometimes, when I shutdown the b/g radio (radio 0) of the remote AP, the bridge link will be established again. Following is the log from the root AP.
Thanks!
*Apr 4 12:24:05.013: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to r
eset
*Apr 4 12:24:05.054: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:24:05.665: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to down
*Apr 4 12:24:06.009: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
1, changed state to up
*Apr 4 12:24:06.013: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
0, changed state to down
*Apr 4 12:24:07.054: %LINK-3-UPDOWN: Interface BVI1, changed state to down
*Apr 4 12:24:16.091: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: No Response
*Apr 4 12:24:16.811: %LINK-3-UPDOWN: Interface BVI1, changed state to up
*Apr 4 12:24:17.811: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, chan
ged state to upInternal error: command failed                                                             <<<< Internal error: command failed ??????
                                                                                                                               <<<<don't know the meaning of this message
*Apr 4 12:27:22.206: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to r
eset
*Apr 4 12:27:22.233: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:27:22.233: dot11_mgmt: bad cookie returned from driver for mac 003a.9         <<<<<003a.928.dad0 is radio 1 / non root bridge of remote AP
928.dad0(expected 0x00000000, got 0x010ADAB0) - force driver to delete client             <<<<<don't know the meaning of this message
*Apr 4 12:27:22.235: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to r
eset
*Apr 4 12:27:22.262: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:27:23.513: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to up
*Apr 4 12:27:26.993: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:27:28.465: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:27:28.465: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Previous authentication no longer valid
*Apr 4 12:27:28.467: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:27:31.673: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:27:32.687: %DOT11-6-ADD: Interface Dot11Radio1, Station 003a.9926.e76
0 Associated to Parent 003a.9928.dad0
*Apr 4 12:28:46.178: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Sending station has left the BSS
*Apr 4 12:28:46.179: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9926.e760
*Apr 4 12:28:46.181: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:28:47.196: %DOT11-6-ADD: Interface Dot11Radio1, Station 003a.9926.e76
0 Associated to Parent 003a.9928.dad0
*Apr 4 12:29:15.132: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to down
*Apr 4 12:29:32.442: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:29:32.442: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Previous authentication no longer valid
*Apr 4 12:29:32.443: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9926.e760
*Apr 4 12:29:32.444: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:31:10.285: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: Rcvd response from 003a.9928.2660 channel 6 2560
*Apr 4 12:31:18.286: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: AssociatingInternal error: command failed
*Apr 4 12:31:27.021: dot11_mgmt: bad cookie returned from driver for mac 003a.9
928.2660(expected 0x00000000, got 0x010ADAB0) - force driver to delete client
*Apr 4 12:31:29.107: %DOT11-4-UPLINK_ESTABLISHED: Interface Dot11Radio0, Associ
ated To AP T9_SML_LT2_AP2 003a.9928.2660 [None]
*Apr 4 12:31:29.108: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Apr 4 12:31:30.108: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
0, changed state to up

Thanks dmantill for reminding me to revisit the antenna and related stuff.
As the setup is in a lab environment, the APs are put on a work bench next to each other, therefore, the radio output power was lowered.
After adjusting the output powers, it works as expected.
Thanks Surendra and dmantill.

Does the 27" iMac wireless card support 802.11a and n

does the iMac support the 5 GHz wifi format? How about the N spec?

I'm sorry but I don't understand this:
the unit supports 802.11a channels but it doesn't pick up anything.
Are you saying the iMac cannot connect wirelessly? And why would you be concerned that the very old 'a' standard may not be picked up? The latest standard is 802.11n, not a.
http://en.wikipedia.org/wiki/IEEE_802.11
So, is the iMac working wirelessly or not?

1552 in P-MP acting as 802.11a Wireless Bridge with single antenna SISO

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