100m line of site ethernet bridge

Are there any economical solutions for ~100m line of sight wireless solutions, that can do 200Mb/s to 1Gb/s ideally full duplex.

Ubiquiti Airfibre looks like a nice solution, but ideally want to put together a solution that is more economical, $1-2k for both ends.
http://www.ubnt.com/airfiber

2 x SEXTANT at each end running lacp for load balancing and redundency???

Any ideas?

Sextant by default has 100Mbit port.

SXT-G is a new product that can do 250Mbit one way. 100m is short distance, so it should be possible.

Thanks, have ordered two to do initial testing. The site has changed, and is now at 500m, I have line of sight, but an obstructed fresnal zone. But am hoping to be able to get away with it and still get full speed.

The big question is regarding the redundancy, the simplest way of doing it would be to create transparent bridges.

So in effect when I have all 4 up and running, I will have two links that are transparent, in that they act as if they were ethernet cables, and I can simply plug them in at each end and let spanning tree on the cisco switchs at each end take care of the management of the redundancy and load sharing using per vlan spanning tree.

It is possible to configure a pair of SXT’s in a point to point configuration to act as if they were simply an ethernet cable?

The wiki is pointing towards using MPLS for bridging as being the optimal configuration
http://wiki.mikrotik.com/wiki/Transparently_Bridge_two_Networks_using_MPLS

Is there a simpler solution??
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How is it possible to get Gigabit connection on SXT with pasive POE injector?
Am I something missing?

Using the Gigabit injector: http://routerboard.com/RBGPOE

I have these and the Gigabit port on my Cisco 2950T will not come up when using it, no lights or anything, it is like it to not detected that the cable is plugged in, It works fine on all the 10/100 ports, and anything else works fine when plugged into the Gigibit port. Have even tried using a cross-over cable.

It does however work when I plug it into a little HP Procurve GB switch.

Any ideas?

I have some Juniper switch’s on the way, is there any hope that they will work with them?

The MikroTik PoE injectors are passive injectors, they do not comply with 802.3af standard. If your device needs 802.3af standard power, this will not work. Our PoE injectors are mainly used for powering RouterBOARD devices which need passive PoE power.

I am using the gigabit injector with the Mikrotik SXT-G,

Doing a little googling, it is looking like I will have to disable auto-negotiation of the switch port on the Cisco in order for it to bring up the interface.

I will do this tomorrow and report back if I still have any issues.