Mikrotik makes pretty good gear. Depending on traffic, I'd put an RB493AH in there. Should be able to do anything you needed to do without great concern for the weather.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Marlon K. Schafer" <[email protected]> Sent: Wednesday, March 04, 2009 10:19 AM To: "WISPA General List" <[email protected]> Subject: Re: [WISPA] 100 meg full duplex backhaul > Right. I get that part. But I've never used it out here so I don't know > if > it's a routing function or a bridging function like spanning tree. I'm > trying to figure out what hardware would be best deployed at the tower > sites. > > Part of what I'm trying to do is get a grip on long term costs. If I have > to run sensitive routers vs. hardened switches it'll make a difference. > Adding heat and AC to the towers changes the annual costs quite a bit. > > thanks, > marlon > > ----- Original Message ----- > From: "Mike Hammett" <[email protected]> > To: "WISPA General List" <[email protected]> > Sent: Wednesday, March 04, 2009 7:53 AM > Subject: Re: [WISPA] 100 meg full duplex backhaul > > >> OSPF is how you manage load sharing and load balancing. >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> >> >> >> -------------------------------------------------- >> From: "Marlon K. Schafer" <[email protected]> >> Sent: Wednesday, March 04, 2009 9:36 AM >> To: "WISPA General List" <[email protected]> >> Subject: Re: [WISPA] 100 meg full duplex backhaul >> >>> Certainly Jack. I don't know anyone that's built something like this >>> already though. >>> >>> And, it's really not that far off from what we already do. It's just >>> bigger and faster. >>> >>> I've not used the hardware needed for this system so I'm mostly >>> interested >>> in what people would install. I know there are a few people here that >>> have very high speed backbone systems in place. >>> >>> The one part that's got me stumped so far is what to do to create a load >>> sharing load balancing mechanism at the main towers. Should that be >>> done >>> via high end switch or router? >>> >>> If you know someone that would be good help in putting this idea >>> together >>> please feel free to have them contact me. Please note, that nothing >>> will >>> be able to happen at a nut and bolt specific level until construction >>> starts. The program is customer and land acquisition specific, not >>> build >>> it THIS way specific. Did I say that at all clearly? Does it make >>> sense? >>> That is part of why I've not even looked for help yet, there are far >>> more >>> questions than plans in place. Things are still at a conceptual stage, >>> but I'm trying to drill down a bit better. >>> >>> Thanks! >>> marlon >>> >>> ----- Original Message ----- >>> From: Jack Unger >>> To: WISPA General List >>> Sent: Tuesday, March 03, 2009 10:06 PM >>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>> >>> >>> Marlon, >>> >>> Trying to design a complex system like this via a listserve "committee" >>> is more than a little bit risky. Have you considered going to someone >>> who >>> actually has this type of network design experience and paying them to >>> do >>> the whole job right the first time? Just asking. >>> >>> jack >>> >>> >>> Marlon K. Schafer wrote: >>> I don't know if I'll be able to put some many antennas on the towers. >>> >>> How close together would I need the towers to prevent the rain fade >>> outage >>> at 18 gig? >>> >>> Aren't there any 5.8 systems that will do this reliably in the first >>> place? >>> I shouldn't need 5.x for distribution so I could use it all for >>> backhaul. >>> I'll have 2.4, 3.65, 4.9 and hopefully, someday, TVBD for the consumers. >>> marlon >>> >>> ----- Original Message ----- >>> From: "Brian Webster" <[email protected]> >>> To: "WISPA General List" <[email protected]> >>> Sent: Tuesday, March 03, 2009 9:44 PM >>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>> >>> >>> The 5.8 GHz backup links will help you deal with outages due to >>> environmental conditions such as rain fade. That has to be factored in >>> for >>> links when you operate above 10 GHz. Even if you run a loop >>> configuration >>> you could have a fade condition that could block out a whole tower site >>> severing your links to that location in both directions of your loop. >>> Another path at a lower frequency with spatial diversity from your >>> primary >>> link (different mounting heights) would at least keep that site up >>> though >>> maybe not at full speed. >>> >>> >>> >>> Thank You, >>> Brian Webster >>> >>> -----Original Message----- >>> From: [email protected] [mailto:[email protected]]on >>> Behalf Of Marlon K. Schafer >>> Sent: Wednesday, March 04, 2009 12:26 AM >>> To: WISPA General List >>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>> >>> >>> Thanks. >>> >>> Do you think we need the unlicensed for each hop if the entire network >>> is >>> build in a circle? >>> marlon >>> >>> ----- Original Message ----- >>> From: "Travis Johnson" <[email protected]> >>> To: "WISPA General List" <[email protected]> >>> Sent: Tuesday, March 03, 2009 9:12 PM >>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>> >>> >>> Licensed 18ghz links with 5.8ghz backup links for each hop. Figure >>> $15,000 per link for everything. >>> >>> Travis >>> Microserv >>> >>> Marlon K. Schafer wrote: >>> Hi All, >>> >>> I'm looking for some gear that'll be rock solid at 15 to 20 miles. Some >>> links may be less, but I'm not counting on that. >>> >>> I'll be hauling public safety, private vpns, and normal internet >>> traffic. >>> >>> I'll probably have around 20 towers, all linked in a ring. I can load >>> share >>> across the ring as long as speeds never drop below 100megs. I'll want >>> things to be automatically self healing if there is a loss of >>> connectivity >>> in any direction. >>> >>> What would you guys use/suggest? >>> >>> I'd love to go licensed (but no 6 gig due to antenna sizes) but >>> unlicensed >>> may be OK due to the failover capabilities. >>> >>> We have to worry about snow, fog and, worst of all, dust storms. >>> >>> What gear would you use? How would you set this up? >>> >>> I'm in the pricing stage so off list quotes etc. are welcome. Pall park >>> numbers are fine at this time, as long as they tend to run high vs. low, >>> I'd >>> rather over estimate the costs. >>> >>> thanks, >>> marlon >>> >>> >>> >>> ------------------------------------------------------------------------- >>> ------- >>> WISPA Wants You! 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