Re: [WISPA] WLAN stress test uncovers 802.11 performance problems

2008-02-13 Thread Jack Unger
Yep. Very few people (less than 5%) who deploy dense wireless LANs understand that the interference radius around each access point omni antenna is 4 times to 8 times (or more) GREATER than the usable communications radius. People end up putting too many access points too close together result

Re: [WISPA] WLAN stress test uncovers 802.11 performance problems

2008-02-13 Thread Dylan Oliver
I strongly suspect that Alvarion would not "blow this test out of the water" because they, like Cisco and Aruba, do nothing (so far as I know) to coordinate transmissions to mitigate self-interference. Meru does, and this is why it comes out so far ahead. According to Belanger, at some points in t

Re: [WISPA] WLAN stress test uncovers 802.11 performance problems

2008-02-13 Thread Brian Webster
CK PROFITO Sent: Wednesday, February 13, 2008 10:21 PM To: 'WISPA General List' Subject: [WISPA] WLAN stress test uncovers 802.11 performance problems WLAN stress test uncovers 802.11 performance problems The tests confirm two troubling issues for high-density nets Everyone on this li

[WISPA] WLAN stress test uncovers 802.11 performance problems

2008-02-13 Thread CHUCK PROFITO
WLAN stress test uncovers 802.11 performance problems The tests confirm two troubling issues for high-density nets Everyone on this list probably already knows this, especially if you have read Jack's book, but John Cox from Network World did a good job explaining it. Usage vs. self interference