I'm more accepting of it on backhauls because there's another path. There isn't for PtMP.
BFD or (preferably) the radio's ability to drop the Ethernet port should have taken the link down immediately. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Ken Hohhof" <af...@kwisp.com> To: af@afmug.com Sent: Tuesday, October 25, 2016 9:14:08 AM Subject: Re: [AFMUG] AF-5U vs. AF-5x Exactly. I don’t consider a minute of downtime acceptable on a backhaul, especially if you have no control over when or how often it happens. Also it’s long enough to trigger OSPF to reroute traffic. Customer expectations about the Internet have changed, the phone may already be ringing before the AP has finished scanning and the SMs have reregistered on the new frequency. Their phone calls drop, their video pauses, they get kicked out of games, their VPN session to work drops. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Mike Hammett Sent: Tuesday, October 25, 2016 9:05 AM To: af@afmug.com Subject: Re: [AFMUG] AF-5U vs. AF-5x There's still the LBT timer. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Kurt Fankhauser" < lists.wavel...@gmail.com > To: af@afmug.com Sent: Tuesday, October 25, 2016 9:03:35 AM Subject: Re: [AFMUG] AF-5U vs. AF-5x With the PMP450 you can select up to 2 alternative frequencies for the radio to go to if it gets a DFS hit. Very rarely would all 3 frequencies get hits and cause the AP to go down. On Tue, Oct 25, 2016 at 9:04 AM, Mike Hammett < af...@ics-il.net > wrote: DFS is great for PtP because if it goes down, you have another one on another path. Not so with PtMP. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP From: "Ken Hohhof" < af...@kwisp.com > To: af@afmug.com Sent: Monday, October 24, 2016 9:14:47 AM Subject: Re: [AFMUG] AF-5U vs. AF-5x I think PTP links are narrow beams and carefully engineered. On the other hand some PTP radios allow auto frequency change. I would be very cautious about using those frequencies and make sure the path isn’t inline with any TDWR sites no matter the distance. For that matter, I really don’t like the idea of using DFS frequencies for PTP links, can you really afford the downtime for a false radar detect? Do you not have lower 5 GHz non-DFS frequencies available to use instead? From: Af [mailto: af-boun...@afmug.com ] On Behalf Of Kurt Fankhauser Sent: Monday, October 24, 2016 8:57 AM To: af@afmug.com Subject: Re: [AFMUG] AF-5U vs. AF-5x I am 60 miles from closest TDWR. I just thought it was odd that the AF5X allows transmit on that freq but the PMP450 AP has those frequencies greyed out. I figured that Cambium would be certified for more freqs than UBNT. Maybe cambium just made that choice to make those freqs unavailable. On Mon, Oct 24, 2016 at 8:53 AM, Josh Luthman < j...@imaginenetworksllc.com > wrote: <blockquote> As long as you're at a safe distance yes. I'm sure you're more than 30 km from me for the TDWR here. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Oct 24, 2016 8:30 AM, "Kurt Fankhauser" < lists.wavel...@gmail.com > wrote: <blockquote> Is AF5X legal to transmit on 5600-5650mhz? Firmware 3.2.1 allows it to be selected. Is that a mistake? On Mon, Oct 24, 2016 at 8:24 AM, Josh Reynolds < j...@kyneticwifi.com > wrote: <blockquote> Yeah, the U is upper band only. The AF-5 goes down to 5470 (if the datasheet is still accurate). Very good antennas, but limited gain. 1024QAM. GPS sync. Good radio for the money, as long as it works for your link distance. On Oct 24, 2016 7:14 AM, "Josh Luthman" < j...@imaginenetworksllc.com > wrote: <blockquote> I think one or two modulations. You can't do the lower frequencies on the U. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Oct 24, 2016 8:05 AM, "Paul McCall" < pa...@pdmnet.net > wrote: <blockquote> Is there any difference performance wise on these two? What is the distance for full modulation on the AF-5U ? What is the longest link (at decent modulation) on the AF-5U I understand that will vary quite a bit with the normal environmental factors, but looking to get close on a comparison Paul McCall, President PDMNet, Inc. / Florida Broadband, Inc. 658 Old Dixie Highway Vero Beach, FL 32962 772-564-6800 pa...@pdmnet.net www.pdmnet.com www.floridabroadband.com </blockquote> </blockquote> </blockquote> </blockquote> </blockquote>
