[WISPA] planning 802.11 Wi-Fi for extremely dense areas
Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
Multiple aps with limited range such that each ap covers a limited section of the facility. Sent from my Windows Mobile® phone. -Original Message- From: Rogelio scubac...@gmail.com Sent: Thursday, January 15, 2009 3:35 AM To: WISPA General List wireless@wispa.org Subject: [WISPA] planning 802.11 Wi-Fi for extremely dense areas Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
This company provides the only logical solution for high density, high availability 802.11X indoor enterprise connectivity that I know of outside of Cisco. http://www.arubanetworks.com/ You cannot do what you are asking unless you have some centralized AP controller capable of adjusting the RF power levels, frequency, etc. for every AP in real time. The Aruba platform also offers things definitely needed in an environment like this such as rogue AP detection. All conference centers, enterprises, campuses, etc. should have rogue AP detection as a matter of best practices. Scriv On Thu, Jan 15, 2009 at 4:32 AM, Rogelio scubac...@gmail.com wrote: Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
You build a system with multiple layers. Very high end backhaul (ptp wireless, fiber etc.). Then higher end gear like redline for a middle mile system. Lastly, you use good ap's (MT or StarOS) for distribution. I'd use a radius authentication mechanism for this. You can then use any off the shelf isp management system to authenticate users. If you use MT units for your distribution you'll easily be able to handle CALEA requests etc. We'd also need to know a bit about the geography of the area. One of the hardest things to do will be to create distribution points that have acceptable coverage but don't interfere with each other. One more thing. Are they planning to cover inside of every structure in the coverage zones? If so, run. Run like hell. So far I know of NO successful deployments like this. It just won't work with today's technology limitations. You might also want to conceder hiring some consulting help with this. Several of us here have tried to help people pull off projects like this in the past. Most people make the same mistakes over and over again. If anyone can make this work, a few here can. Most professional consultants won't stand a chance. And working with the likes of Cisco, Lucent etc. pretty well guarantees failure. laters, marlon - Original Message - From: Rogelio scubac...@gmail.com To: WISPA General List wireless@wispa.org Sent: Thursday, January 15, 2009 2:32 AM Subject: [WISPA] planning 802.11 Wi-Fi for extremely dense areas Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
Oops. I missed the conference center part of this. I was thinking town level. It'll still be a large challenge. I'd be sure to run an abg network. Hopefully some can use the a to take a load off of the b/g. laters, marlon - Original Message - From: Marlon K. Schafer o...@odessaoffice.com To: scubac...@gmail.com; WISPA General List wireless@wispa.org Sent: Thursday, January 15, 2009 7:34 AM Subject: Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas You build a system with multiple layers. Very high end backhaul (ptp wireless, fiber etc.). Then higher end gear like redline for a middle mile system. Lastly, you use good ap's (MT or StarOS) for distribution. I'd use a radius authentication mechanism for this. You can then use any off the shelf isp management system to authenticate users. If you use MT units for your distribution you'll easily be able to handle CALEA requests etc. We'd also need to know a bit about the geography of the area. One of the hardest things to do will be to create distribution points that have acceptable coverage but don't interfere with each other. One more thing. Are they planning to cover inside of every structure in the coverage zones? If so, run. Run like hell. So far I know of NO successful deployments like this. It just won't work with today's technology limitations. You might also want to conceder hiring some consulting help with this. Several of us here have tried to help people pull off projects like this in the past. Most people make the same mistakes over and over again. If anyone can make this work, a few here can. Most professional consultants won't stand a chance. And working with the likes of Cisco, Lucent etc. pretty well guarantees failure. laters, marlon - Original Message - From: Rogelio scubac...@gmail.com To: WISPA General List wireless@wispa.org Sent: Thursday, January 15, 2009 2:32 AM Subject: [WISPA] planning 802.11 Wi-Fi for extremely dense areas Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
And working with the likes of Cisco, Lucent etc. pretty well guarantees failure. laters, marlon Marlon, I am afraid I have to disagree with you on this one. There are many massive deployments (hundreds of APs in one campus) around the world using both Aruba and Cisco as their 802.11 infrastructure. Neither of these are a best fit for most WISP type deployments but they most definitely are the best for very large campus type environments. I would estimate that over 75% of very large campus environements are successfully deploying secure, reliable and scalable 802.11 using Aruba and Cisco. I do not sell or own equipment from either of these vendors so please know my perspective here is based solely on what I have read from the accounts of many system administrators involved in campus deployments. I have built smaller campus deloyments using WISP based systems as you have descibed but if I had to a large scale campus deployment there is no doubt for me that Aruba or Cisco would be the platform of choice. Scriv - Original Message - From: Rogelio scubac...@gmail.com To: WISPA General List wireless@wispa.org Sent: Thursday, January 15, 2009 2:32 AM Subject: [WISPA] planning 802.11 Wi-Fi for extremely dense areas Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
Yeah, again I missed the conference center part of it. I was thinking muni network in town. laters, marlon - Original Message - From: John Scrivner j...@scrivner.com To: WISPA General List wireless@wispa.org Sent: Thursday, January 15, 2009 7:48 AM Subject: Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas And working with the likes of Cisco, Lucent etc. pretty well guarantees failure. laters, marlon Marlon, I am afraid I have to disagree with you on this one. There are many massive deployments (hundreds of APs in one campus) around the world using both Aruba and Cisco as their 802.11 infrastructure. Neither of these are a best fit for most WISP type deployments but they most definitely are the best for very large campus type environments. I would estimate that over 75% of very large campus environements are successfully deploying secure, reliable and scalable 802.11 using Aruba and Cisco. I do not sell or own equipment from either of these vendors so please know my perspective here is based solely on what I have read from the accounts of many system administrators involved in campus deployments. I have built smaller campus deloyments using WISP based systems as you have descibed but if I had to a large scale campus deployment there is no doubt for me that Aruba or Cisco would be the platform of choice. Scriv - Original Message - From: Rogelio scubac...@gmail.com To: WISPA General List wireless@wispa.org Sent: Thursday, January 15, 2009 2:32 AM Subject: [WISPA] planning 802.11 Wi-Fi for extremely dense areas Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
Thats right Cisco Aruba and Meru are the wireless platforms universities are using for high density campus networks. Here's Meru's url. They claim to be the largest 802.11n Meru isn't just a technology leader. It's also a market leader, with more operational 802.11n networks worldwide than any other vendor. http://www.merunetworks.com/technology/whymeru/w-scalability.php I also have a link for a wireless list that is used by university admins that discuss their wireless networks. I will hand it out off list to help keep their privacy and the integrity of their list. George John Scrivner wrote: This company provides the only logical solution for high density, high availability 802.11X indoor enterprise connectivity that I know of outside of Cisco. http://www.arubanetworks.com/ You cannot do what you are asking unless you have some centralized AP controller capable of adjusting the RF power levels, frequency, etc. for every AP in real time. The Aruba platform also offers things definitely needed in an environment like this such as rogue AP detection. All conference centers, enterprises, campuses, etc. should have rogue AP detection as a matter of best practices. Scriv On Thu, Jan 15, 2009 at 4:32 AM, Rogelio scubac...@gmail.com wrote: Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas
I've heard some pretty bad things about Meru A local university had them deploy some APs and about a year later, the implementation did not work. I believe they told them to pack their things and get out. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -- From: George Rogato wi...@oregonfast.net Sent: Thursday, January 15, 2009 7:57 PM To: WISPA General List wireless@wispa.org Subject: Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas Thats right Cisco Aruba and Meru are the wireless platforms universities are using for high density campus networks. Here's Meru's url. They claim to be the largest 802.11n Meru isn't just a technology leader. It's also a market leader, with more operational 802.11n networks worldwide than any other vendor. http://www.merunetworks.com/technology/whymeru/w-scalability.php I also have a link for a wireless list that is used by university admins that discuss their wireless networks. I will hand it out off list to help keep their privacy and the integrity of their list. George John Scrivner wrote: This company provides the only logical solution for high density, high availability 802.11X indoor enterprise connectivity that I know of outside of Cisco. http://www.arubanetworks.com/ You cannot do what you are asking unless you have some centralized AP controller capable of adjusting the RF power levels, frequency, etc. for every AP in real time. The Aruba platform also offers things definitely needed in an environment like this such as rogue AP detection. All conference centers, enterprises, campuses, etc. should have rogue AP detection as a matter of best practices. Scriv On Thu, Jan 15, 2009 at 4:32 AM, Rogelio scubac...@gmail.com wrote: Within the last few weeks, I have gotten several inquiries about setting up 802.11 wireless access services for thousands (1000-5000) of people in a conference sort of area (assuming 100% subscription rate, which I think is sort of unreasonable, but that's another story), and I have told them that based on what I know, the 802.11 protocol breaks at those numbers. Is there any 802.11-based solution that can handle this density? The only way I have seen people get around it (like at the Superbowl press areas with tons and tons of people) is to try to offload a significant number of users on Ruckus devices using cat5. Does anyone have any suggestions here? In these situations, I would just probably put in a ton of smaller access points and then turn the power WAY down and then plan some sort of non-overlapping channel plan with 802.11a and 802.11b/g. I have heard of other solutions (e.g. Proxim) having soft limits on numbers of associations one each AP so that they can, at least, guarantee good coverage with the few who are able to associate to that access point. Anyone have any other ways around this? Based on what I know, access points (fat or thin, regardless of the model) crap out at around... --about 250 MAC associations --about 50 client associations --about 25 hardcore user sessions Any and all advice on the topic is welcome (even if it is to just tell me I'm stupid for even considering talking to these customers!) WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
