said by prairiesky:just for clarity..... what i'm looking to do would be to trunk 2 wireless links together...... but when i tried that, it didn't seem to work overly well using the "trunking feature"
radio1a---------------radio1b
tower1 tower2
radio2a---------------radio2b
Then have them load balance between the 2 and fail over if one goes down. They'd be transparent ideally.
AFAIK, there are no commercial product that address this exact problem. There are some multi-WAN routers which come close but their WAN throughputs are designed for DSL/Cable.
Curiously my old company developed a solution for truly transparent trunking of mismatched parallel links many years ago. It was originally designed to parallel a FSO link with a 5Ghz PtP, but I made it generic enough for upto 4 links of any kind and any throughput.
The prototype was developed on a really expensive off-the-shelf PCI board which had a Xilinx FPGA driving 4 10/100 ethernet ports. Sadly, my company ran out of money to make a lower cost FPGA board for commercial product.
The FPGA is essential to implement the low latency scheme to merge the links transparently. I will check if there are affordable PCIe FPGA boards with quad gigabit ports and adapt my solution for today's high throughput PtP links.