Fair point... and yes, that is a challenge with rain fade, it is not a sharp drop off, but a gradual fade... I believe there are some techniques that can be used to reduce such affects... but they need cooperation of the Radio Mfg. as well. e.g. Track Radio link, link off duration, Link off spacing that Ubiquiti added to their Airfiber 24 radios.
(Just using Ubiquiti as an example, I am not familiar with the Bridge-wave features). Using BFD and reduced OSFP timers can also be used to reduce the failover time... But you are correct this is an issue to be dealt with. (This is where OSLR would make a difference...) Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net > From: "Eric Kuhnke" <eric.kuh...@gmail.com> > To: af@afmug.com > Sent: Monday, January 11, 2016 9:40:48 AM > Subject: Re: [AFMUG] TP-Link Talon AD7200 first AD router > I have 60 GHz installed in parallel with 5.7 for failiver, one has a much > higher > ospf cost on the router to router link. > The problems: severe rain will cause 15-20 seconds of intermittent packet loss > and terrible performance before the 60 link drops entirely. > Let's say the link drops at -64 > Rain bursts will take rssi to -67 for 2-3 seconds at a time and then a brief > lull in rain had the rssi at -60 or -58. Repeat in 20-30 second cycles. > The ospf failover is not instant. > The 60 link can be planned with the same ospf cost metric as a patch cable > because it is FDD and line rate. The 5GHz link is at best 200 Mbps and > definitely not FDD. > On Jan 10, 2016 9:05 PM, "Faisal Imtiaz" < fai...@snappytelecom.net > wrote: >> You are correct, but ...... >> How about if the radio was able to transmit at a bit higher power and have a >> 5ghz failover builtin .... it is not going to go 5 miles, but practical range >> can be extended up to 1.5km >> In addition to that, if the radios were under $1200 / link what would you >> think >> of additional possibilities ? >> How about a last few hundered feet, distribution (via a PTMP Sector) for a >> fiber >> to Neighborhood deployment ? >> how about 4K high def street cameras ? Video surveillance ? >> lots of interesting possibilities, and yes you are right this is not a >> LongHaul, >> or Medium Long Haul product. It is for short, fat links... >> :) >> Regards. >> Faisal Imtiaz >> Snappy Internet & Telecom >> 7266 SW 48 Street >> Miami, FL 33155 >> Tel: 305 663 5518 x 232 >> Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net >>> From: "Eric Kuhnke" < eric.kuh...@gmail.com > >>> To: af@afmug.com >>> Sent: Sunday, January 10, 2016 9:34:27 PM >>> Subject: Re: [AFMUG] TP-Link Talon AD7200 first AD router >>> Given the limitations on 60 GHz this will be a very short distance >>> solution, if >>> it works at all... The rain fade at 60 GHz is extreme, which is why it's >>> unlicensed compared to the "light license" system for PTP 80 GHz. >>> In ITU rain zone D the max distance I use 60 GHz PTP at is 500 to 575 >>> meters. >>> That's with a 25cm parabolic antenna on each end. I'm talking about radios >>> like >>> the Bridgewave GE60 and similar. Even at that distance the link will only >>> have >>> an availability over one year of around five nines, not six nines, and WILL >>> drop out once or twice a year in super heavy rain burst events. >>> 60 GHz is an excellent solution for a line rate FDD 1 Gbps PTP bridge, >>> which is >>> indistinguishable from a router-to-router OSPF adjacency perspective from a >>> 1 >>> Gbps fiber patch cable. Unless you're in a major city with tall towers & >>> market >>> demand that will support $500/MRC+ customer services, I don't see how 60 GHz >>> PTP would be very useful from a rural or suburban WISP perspective. Fiber >>> fed >>> radios on rooftops in downtown Vancouver, Seattle, Portland and San >>> Francisco, >>> sure. Not so useful for a typical rural WISP like somewhere 75 miles outside >>> Boise. >>> On Sun, Jan 10, 2016 at 5:52 PM, Josh Reynolds < j...@kyneticwifi.com > >>> wrote: >>>> Yes, there are quite a few companies coming out with 60GHz ptmp this year. >>>> Should be fun. >>>> On Jan 10, 2016 6:04 PM, "Mathew Howard" < mhoward...@gmail.com > wrote: >>>>> I hope so... I can see some goid uses for such a thing... >>>>> On Jan 10, 2016 4:46 PM, "Faisal Imtiaz" < fai...@snappytelecom.net > >>>>> wrote: >>>>>> Becareful of what you wish for... >>>>>> We just might see a 60Ghz Sector before the year is out ! >>>>>> :) >>>>>> Faisal Imtiaz >>>>>> Snappy Internet & Telecom >>>>>> 7266 SW 48 Street >>>>>> Miami, FL 33155 >>>>>> Tel: 305 663 5518 x 232 >>>>>> Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net >>>>>> ----- Original Message ----- >>>>>> > From: "Adam Moffett" < dmmoff...@gmail.com > >>>>>> > To: af@afmug.com >>>>>> > Sent: Sunday, January 10, 2016 11:32:20 AM >>>>>> > Subject: Re: [AFMUG] TP-Link Talon AD7200 first AD router >>>>>> > very short range. >>>>>> > Tx limit seems to be +10dbm. >>>>>> > FSPL is higher than we're used to. >>>>>> > There's also some sort of "resonance with oxygen molecules" issue that >>>>>> > I >>>>>> > don't understand but is supposed to cause attenuation. >>>>>> > You do get lots of gain from directional antennas. I bet you could make >>>>>> > a case for a 60ghz PTMP urban deployment. Like something where you >>>>>> > light up the side of an apartment/office building with a sector antenna >>>>>> > and then clamp a little dish on everybody's balcony railing. >>>>>> >> Think Ubiquiti will come out with a 60 ghz PTMP Airmax AD solution? >>>>>> >> On 1/9/2016 12:10 PM, Faisal Imtiaz wrote: >>>>>> >>> For those with inquiring minds ! >>>>>> >>> http://www.perasotech.com/ >>>>>> >>> http://www.virtual-strategy.com/2016/01/04/peraso-wigig%C2%AE-chipset-powers-ignitenet-wireless-ptp-links#axzz3wIi9ZODJ >>>>>> >>> Regards >>>>>> >>> Faisal Imtiaz >>>>>> >>> Snappy Internet & Telecom >>>>>> >>> 7266 SW 48 Street >>>>>> >>> Miami, FL 33155 >>>>>> >>> Tel: 305 663 5518 x 232 >>>>>> >>> Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net >>>>>> >>> ----- Original Message ----- >>>>>> >>>> From: "Chuck McCown" < ch...@wbmfg.com > >>>>>> >>>> To: af@afmug.com >>>>>> >>>> Sent: Saturday, January 9, 2016 10:49:16 AM >>>>>> >>>> Subject: Re: [AFMUG] TP-Link Talon AD7200 first AD router >>>>>> >>>> I cannot imagine integrating 60 GHz on standard silicon. >>>>>> >>>> -----Original Message----- >>>>>> >>>> From: Stefan Englhardt >>>>>> >>>> Sent: Friday, January 08, 2016 11:27 PM >>>>>> >>>> To: af@afmug.com >>>>>> >>>> Subject: Re: [AFMUG] TP-Link Talon AD7200 first AD router >>>>>> >>>> Some Dell Notebooks. It will be integrated into standard WIFI >>>>>> >>>> Chipset so you >>>>>> >>>> will see combined 2,4/5/60GHz Chips. >>>>>> >>>> Just starting. >>>>>> >>>> -----Urspr�ngliche Nachricht----- >>>>>> >>>> Von: Af [mailto: af-boun...@afmug.com ] Im Auftrag von Jay Weekley >>>>>> >>>> Gesendet: Samstag, 9. Januar 2016 07:18 >>>>>> >>>> An: af@afmug.com >>>>>> >>>> Betreff: Re: [AFMUG] TP-Link Talon AD7200 first AD router >>>>>> >>>> Are there any consumer devices that have a 60 GHz adapter? >>>>>> >>>> Ken Hohhof wrote: >>>>>> >>>>> And 4K video takes what, something like 25 Mbps? So you can watch >>>>>> >>>>> 200 >>>>>> >>>>> of them at once! >>>>>> >>>>> And notice it only has gigabit ports. Shouldn�t it have at least >>>>>> >>>>> one >>>>>> >>>>> SFP+ port for 10 gig wired? Maybe this is for the person who has >>>>>> >>>>> their own media server in their house (but hates wires). It had >>>>>> >>>>> better be in the same room with the router, since 60 GHz is not >>>>>> >>>>> going >>>>>> >>>>> to penetrate walls very wall. >>>>>> >>>>> Perhaps people are going to have gaming and multimedia PCs that >>>>>> >>>>> stream >>>>>> >>>>> the raw video over the home wireless network to their tablet or >>>>>> >>>>> some >>>>>> >>>>> sort of thin client. Kind of along the lines of the wireless TV >>>>>> >>>>> receivers you get with satellite and cable now, or an extension of >>>>>> >>>>> the >>>>>> >>>>> Chromecast concept. >>>>>> >>>>> *From:* Bill Prince <mailto: part15...@gmail.com > >>>>>> >>>>> *Sent:* Friday, January 08, 2016 1:19 PM >>>>>> >>>>> *To:* af@afmug.com <mailto: af@afmug.com > >>>>>> >>>>> *Subject:* Re: [AFMUG] TP-Link Talon AD7200 first AD router Very >>>>>> >>>>> funny! >>>>>> >>>>> Interesting statement: >>>>>> >>>>> There�s quite a few technical reasons as to why the jump to >>>>>> >>>>> 60GHz is a good thing, but the most important for the average >>>>>> >>>>> consumer is speed. The 5GHz band maxes out at 1,733Mbps, but the >>>>>> >>>>> new 60GHz band can achieve wireless transfer speeds of up to >>>>>> >>>>> 4,600Mbps. So streaming 4K video without a network cable? Not a >>>>>> >>>>> problem. >>>>>> >>>>> Oh right. Like all of us have 4.6 Gbps to the home... or even 1.7 >>>>>> >>>>> Gbps... >>>>>> >>>>> bp >>>>>> >>>>> <part15sbs{at}gmail{dot}com> >>>>>> >>>>> On 1/8/2016 10:12 AM, Ken Hohhof wrote: >>>>>> >>>>>> Well, you gotta admit, it looks cool.� Price? >>>>>> >>>>>> � >>>>>> >>>>>> http://gizmodo.com/the-first-802-11ad-router-makes-your-wi-fi-network >>>>>> >>>>>> -almo-1749163152
