RE: [WIRELESS-LAN] 802.11n AP recommendations
Tom, I have played with Cisco 11n on a fat 1140 (not CAPWAP) and it does pretty well- like a true 130 Mbps throughput testing with an older early Mac in simple testing. Nice enterprise-class AP and when not CAPWAP can be used stand-alone (no controller dependency). -Lee -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Tom Lowry Sent: Thursday, April 08, 2010 2:41 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] 802.11n AP recommendations We have a robotics research group that wants the highest-speed wireless connections possible. All the equipment is in the same room -- approximately 50'x 50'. Many consumer grade 802.11n APs seem to top out at well below 100Mbps. If anyone can recommend equipment that can achieve higher throughput, please let me know. I won't say price is no object, but we need to consider the options. Thanks, Tom Lowry Department of Computer Science University of Arizona ** 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/.
RE: [WIRELESS-LAN] 802.11n AP recommendations
Sorry- meant to say early 11n Mac, not early Mac. -Original Message- From: Lee H Badman Sent: Thursday, April 08, 2010 3:21 PM To: 'The EDUCAUSE Wireless Issues Constituent Group Listserv' Subject: RE: [WIRELESS-LAN] 802.11n AP recommendations Tom, I have played with Cisco 11n on a fat 1140 (not CAPWAP) and it does pretty well- like a true 130 Mbps throughput testing with an older early Mac in simple testing. Nice enterprise-class AP and when not CAPWAP can be used stand-alone (no controller dependency). -Lee -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Tom Lowry Sent: Thursday, April 08, 2010 2:41 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] 802.11n AP recommendations We have a robotics research group that wants the highest-speed wireless connections possible. All the equipment is in the same room -- approximately 50'x 50'. Many consumer grade 802.11n APs seem to top out at well below 100Mbps. If anyone can recommend equipment that can achieve higher throughput, please let me know. I won't say price is no object, but we need to consider the options. Thanks, Tom Lowry Department of Computer Science University of Arizona ** 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/.
RE: [WIRELESS-LAN] 802.11n AP recommendations
Hello, We needed to wireless enable a math lab for a 100 workstations and we ended up using 4 Aruba A/P's and controller running 802.11N. We are seeing throughput in excess of 200meg at the workstations and they have experienced no issues with them. We have them secured with Certificates on both ends also. I would contact them and see if they can do a proof of concept for you as they did here. We are actually a Cisco shop with A/P's but I could not get them to guarantee success in the environment that we have them in. Aruba said No problem and they delivered on that statement. Bruce Bruce Marshall Director of Network Infrastructure Services Valencia Community College -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Tom Lowry Sent: Thursday, April 08, 2010 2:41 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] 802.11n AP recommendations We have a robotics research group that wants the highest-speed wireless connections possible. All the equipment is in the same room -- approximately 50'x 50'. Many consumer grade 802.11n APs seem to top out at well below 100Mbps. If anyone can recommend equipment that can achieve higher throughput, please let me know. I won't say price is no object, but we need to consider the options. Thanks, Tom Lowry Department of Computer Science University of Arizona ** 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/.
RE: [WIRELESS-LAN] 802.11n AP recommendations
We benchmarked a Cisco 1142 and an Aruba AP125 (both controller based) a while back. They had basically identical performance, although they did vary a bit depending on how many concurrent traffic streams you had, how many clients you had, whether traffic was uni- or bi-directional etc. One vendor was better at one thing, the other at another, but neither did clearly better or worse at the end. Obviously, you run into issues such as being able to utilize both 2.4 and 5 Ghz bands to spread the load, possible interference from within or outside of the room, client capabilities etc. If the client doesn't have enough chains, there's not much you can do on the AP end to change that. One big tweak is to kill all the slower legacy protocols and transmit rates if you can, and minimize any multicast / broadcast traffic making it onto the air. Also, if you can deploy multiple APs to further reduce the number of clients per AP / channel, the more bandwidth you have per client. Also, considering you're within a room, you probably do not want to be running full power, so even 15.4W of PoE ought to allow for all chains to operate with both vendors, but you might want to confirm that. -- Toivo Voll University of South Florida Information Technology Communications -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Tom Lowry Sent: Thursday, April 08, 2010 2:41 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] 802.11n AP recommendations We have a robotics research group that wants the highest-speed wireless connections possible. All the equipment is in the same room -- approximately 50'x 50'. Many consumer grade 802.11n APs seem to top out at well below 100Mbps. If anyone can recommend equipment that can achieve higher throughput, please let me know. I won't say price is no object, but we need to consider the options. Thanks, Tom Lowry Department of Computer Science University of Arizona ** 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/.
Re: [WIRELESS-LAN] 802.11n AP recommendations
We are also a cisco shop and have both 1142 and 1252 AP's on capwap. We've also recently evaluated Meru wireless gear and found it very competitive. You will definitely want to investigate user devices to ensure throughput. For desktops we have older 2.4 only Belkin USB's (F5D8051) that work very well (setup and stability) but throughput struggles in comparison to a similar aged Linksys (WUSB600n) that supports both 2.4 and 5. the Intel 5300 series in laptops has caused many an issue on N, this appears to be resolved and the issues we experienced were stability rather than throughput problems. I would also think planning for 5ghz instead of 2.4 as the primary option is a good idea. On 9/04/2010 4:10 AM, Tom Lowry wrote: We have a robotics research group that wants the highest-speed wireless connections possible. All the equipment is in the same room -- approximately 50'x 50'. Many consumer grade 802.11n APs seem to top out at well below 100Mbps. If anyone can recommend equipment that can achieve higher throughput, please let me know. I won't say price is no object, but we need to consider the options. Thanks, Tom Lowry Department of Computer Science University of Arizona ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Jason Cook Technology Services The University of Adelaide, AUSTRALIA 5005 Ph: +61 8 8313 4800 e-mail: jason.c...@adelaide.edu.au CRICOS Provider Number 00123M --- This email message is intended only for the addressee(s) and contains information which may be confidential and/or copyright. If you are not the intended recipient please do not read, save, forward, disclose, or copy the contents of this email. If this email has been sent to you in error, please notify the sender by reply email and delete this email and any copies or links to this email completely and immediately from your system. No representation is made that this email is free of viruses. Virus scanning is recommended and is the responsibility of the recipient. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] 802.11n AP recommendations
Tom, One detail that I forgot to mention. It seems obvious but we got bitten by it many times! Make sure to use Gigabit ports on switches that uplink the APs. And if you use a midspan power-injector, also make sure that it supports Gigabit Ethernet! Philippe Univ. of TN On Apr 8, 2010, at 2:40 PM, Tom Lowry wrote: We have a robotics research group that wants the highest-speed wireless connections possible. All the equipment is in the same room -- approximately 50'x 50'. Many consumer grade 802.11n APs seem to top out at well below 100Mbps. If anyone can recommend equipment that can achieve higher throughput, please let me know. I won't say price is no object, but we need to consider the options. Thanks, Tom Lowry Department of Computer Science University of Arizona ** 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/.
