> you can decide how much bandwidth you want to set aside for > ARQ. Thats pretty cool. is that a new feature as of a specif fiormware, or has it been there all along?
Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: "Chuck McCown" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Tuesday, November 04, 2008 3:06 PM Subject: Re: [WISPA] heavy usage customers > With Canopy, you can decide how much bandwidth you want to set aside for > ARQ. It has its own slice of the overhead and you can limit it to 2 kbps > if > you want. Most pick 20 kbps. But it really isn't a factor. With 120 on > an > AP at 5.8 with most of them subscribing to 512 Kbps 10.2 Mbps burst they > do > get 7 mS latency and everyone is happy. > > ----- Original Message ----- > From: "Tom DeReggi" <[EMAIL PROTECTED]> >> The other big factor is ARQ. (ps. dont say Canopies don't need arq >> because >> their C/I allows them to not have interference :-) >> The benefits of ARQ are well proven and justifed, which is why Canopy and >> Trango supports it. If there are ARQ retransmissions, latency WILL rise. >> You >> won;t see it from the AP side because the Pings go our right away, but >> from >> the client, The ARQ needs to wait for its next time slice to retransmit. >> >> Again, I don't want to get into which manufacturer's ARQ is a better >> implementation. Just pointing out that ARQ is one of hte factors that >> prevents an ISP from knowing exactly what the latency is that the >> customer >> is experiencing, without testing from the customer side. > > > > -------------------------------------------------------------------------------- > 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/
