I have a challenge. I have a small campus that I need to connect over a 8km (5 miles) radius. There is no fiber available between buildings and wireless is not an option because of the extreme weather in this environment. All I am left with is four pairs between the hub and spokes.
I am thinking about installing a DSLAM at the hub with c800 series routers at the spokes. But I will be over the 4.5km distance of the technology in some cases. Besides, the density (about 20 spokes) doesn't quite justify a full DSLAM. Tut Systems (www.tutsys.com) has a product that might do the trick (MXL-2300) but I would rather stick with Cisco products.
The other option (which is preferred if possible) would be to get a DS3 over copper solution. Normally, I would just ask the telco to provide the CO gear but in this case the telco refuses to play ball so we are doing our on thing. The question is, what kind of gear do I need to get DS3 speed?
laying cables to around 8km distnace is surely a huge task.as Mr.scott suggested you can go for a wireless solution.You can use equipments like 1300 or 1400 wireless bridge.
my opinion is go for 1400 wireless bridge with external antenna.in this case you have to choose some high gain externnal antenna.may be 12 dbi or 13.5 dbi.If you are thinking abt this just go for a site survey.you have to check the LINE OF SITE, or atleast the fresnnen zone.
mmay be you have to take approval for using high gain antenna.before start working on this just have a word with "TRA".
you can think about this, you have to depoly this in point-to-multipoint fashion.
Short of satellite, microwave, laser (ala Canon CanoBeam), or 802.11 wireless, I believe you're stuck.
There are some ISM band microwave equipment that can do 1-3 DS3s (Sylink used to have stuff, but I'm not sure they're still around), VSAT/USAT (lots of latency) would work for connectivity, but not at anywhere close to DS3 bandwidth (~T1 .... maybe up to six meg ... and expensive).
The Canon CanoBeam can do up to OC3, maybe a gigE by now up to five miles, but you have to have fairly clear air and East/West spokes are prone to errors from the rising / setting sun.
802.11 point-to-multipoint probably is your best bet. Extreme conditions can be overcome (usually) with a NEMA enclosure (can be heated or airconditioned). The antennas or dishes can be conditioned for extreme weather (usually some flavor of radome).
802.11 can get you out to 8km pretty easily, but again, not quite DS3 speeds.
Long Reach Ethernet is only good to ~5000feet, usually at ~one meg ... not likely to be a good option for you.
I'm 99.99 percent certain you can't drive copper to those lengths, and especially at those speeds (DS3 is usually only good to ~650 feet, over coax).
I believe your stuck with some flavor of wireless (trencing fiber would be your next best option, IMHO).
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.