Leaf Blower???? Chain Saw????
Steve Barnes General Manager PCS-WIN / RC-WiFi -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Scott Reed Sent: Friday, October 07, 2011 4:58 PM To: WISPA General List Subject: Re: [WISPA] Pulling my hair out That might work, but again this evening the CPEs won't stay up long enough to log in and do anything. I did climb up to the antenna on the worst offender from last night. It is shooting right through a very pretty yellow and orange tree. October is a pain for 900 around here. My theory is the color in the leaves is from the metals that get left behind. Thus we have a bunch or mirrors making all sorts of goofy signal patterns. It is probably worse in the late afternoon/early because everything is warmer. It settled down on its own sometime around 10:00PM yesterday. On 10/7/2011 3:53 PM, Kristian Hoffmann wrote: > On 10/06/2011 05:52 PM, Scott Reed wrote: >> Two reasons for the post: >> 1) Clients can cause the whole AP to misbehave. >> 2) Anyone have any trouble shooting tips on how to know >> whether to check AP or clients first? >> > In the worst conditions, a MT CPE with default configuration will > retransmit the same frame 200-300 times per second at the lowest rate, > consuming all available bandwidth. I've observed this in the field > and on the bench. Getting stats from the AP/CPE to easily show when > this is happening has proven quite difficult. I had to use a third > station to do a TZSP sniff and analyze the data in wireshark in order to > observe it. > > Setting frame-lifetime=1 (1 centi-second/10milliseconds), will drop > that number to 20-30 frames per second. It sets a hard limit to how > long the AP or CPE will spend retransmitting the same frame. So to > answer your second question, you can try setting frame-lifetime=1 on all the > CPEs. > It shouldn't make a difference on good CPEs, but it will likely make > the bad CPEs worse, bringing them to light. > > HTH, > -- Scott Reed Owner NewWays Networking, LLC Wireless Networking Network Design, Installation and Administration Mikrotik Advanced Certified www.nwwnet.net (765) 855-1060 (765) 439-4253 (855) 231-6239 -------------------------------------------------------------------------------- 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/
