It will need perfect line of site. And won't deal with NLOS like most 2/5
ghz gear can. It's 24ghz.
They claim 15Km. Maybe in the desert.
In any climate with rain, Like our's here in Florida even 2 miles is going
to be a stretch as 24ghz will rain fade easy. A great application for this
would be like between two buildings requiring highspeed backhaul. (Were
talking roof-top to roof-top of maybe a few thousand feet or more between
them.
Nick Olsen
Network Operations (855) FLSPEED x106
H.
Hy
It will need perfect line of site. And won't deal with NLOS like most 2/5
ghz gear can. It's 24ghz.
At least on the East Coast, it would be best to install it during the
summer. Put it up in winter, and any leaves that sprout in the path
will likely cause a failure come spring. (And, if you're brought in to
trouble-shoot a broken link, and the local techs swear that all the
gear checks out fine, demand to go up on the roof and look down the
line of sight first. It is satisfying to fix things without having to
actually touch the equipment.)
Regards
Marshall
Is this any different than what GigaBeam tried before they went bankrupt.
http://www.globenewswire.com/newsroom/news.html?d=177145
Their website only shows a control panel login now so I think they've
gone completely out of business. The only reason I know about them is
because one of my customers used two of their radios for a p2p 1G link
and it was a disaster. The Gigabeam radios tried to transparently act
as L1 devices. They were just converting optical energy to radio
energy. They didn't act as bridges. So if you plugged a switch into
either end each switch would think it had an L1 connection to the
other switch.
It would work with certain optics and certain firmware versions of
certain switches. But if you changed anything you might get link and
you might not.
I hope these Ubiquity devices actually maintain link even if the radio
connection goes down.
Often such a feature is an option within the radio configuration. Where wired side
link follows wireless link. To me that never seemed like a good idea because I need
to get into the radio during a wireless link-down situation. Maybe if there was
an OOB ethernet port it could work but I haven't seen them on any radio I've touched.
The Exalt radios, both licensed and unlicensed, have an OOB port. Quite handy for exactly this reason.
I've had one of their EX-5r-c GigE pairs running at full rate on a 14 mile path for years now with no problems except when the garbage truck parks in front of the path briefly once a week.
Matthew Kaufman
These have an 100MB OOB management port, a 1GigE port, and a RJ45 for
a speaker/tone device for aiding alignment.
Often such a feature is an option within the radio configuration. Where wired side
link follows wireless link. To me that never seemed like a good idea because I need
to get into the radio during a wireless link-down situation. Maybe if there was
an OOB ethernet port it could work but I haven't seen them on any radio I've touched.
I have Trango, DragonWave, Motorola & SAF Tehnika PTP gear in my network. All of them have OOB Ethernet. This feature is common, if not standard, for modern microwave backhaul.
We actually have a lot of the old gigabeam radios in service, they are faster than the published specs of the airfiber links (1G full duplex vs 750 mbit/sec fd) and lower latency due to their very simplistic design. To be honest, from a network engineering standpoint, the gigabeams were conveninet as path issues would show up as ethernet errors that can be used to trigger reroutes or other events. That being said, we did not have a large variety of switches as the microwave side of our house is made up entirely of just a couple of cisco models. The gigabeams also have a pure OOB management setup.
John
What published specs have you seen on the airFiber latency? I asked one of the UBNT guys and they said it's microsecond. On any network I've managed, anything sub 1ms is acceptable.
Dylan
I was told to expect 0.1ms by UBNT. Haven't seen this published, though.
Josh