Hi guys. I'm new to this so excuse me if my question seems nube like. If I need to create a 500mb wireless backhaul is it possible to do this bonding multiple 802.11n links together on both sides? Thanks.

I'm assuming that's 500mpbs full duplex which in wireless terms is 1000mbps because the rating you see on wireless gear is typically half duplex. It's certainly possible to bond multiple links together but that'll take quite a few links and you haven't said how far this backhaul has to go.

distance of less than 5 miles. I understand that distance will affect throughput and reliability. Yes, 500mbs full duplex.

Any idea how this is done?

I strongly suggest to go for licensed or unlicensed products in the 18 to 80 ghz frequency range.

I found, that very demanding stuff cannot be done with WiFi...

That's what I figured. I've already researched those options however wanted to see if I could find a lower cost solution. The other solutions are $20k and up. Thanks.

Creating a 500 Mbps Full Duplex with WiFi would mean this:

bonding (LACP or ECMP, whatever you like...) at least four (better five) 802.11n links.

These links must sync at full rate (270 or 300 Mbps) so you can obtain 200 Mbps payload.
At this rate you need an absolutely free 5 GHz frequency band.
Also you need to separate all four (five) antennas very distant from each other to avoid interference. (WiFi isn't very good at separating wireless channels).

All these issues certainly make it burdensome to setup such high capacity link with WiFi.
Go for licensed, and your setup will be much easier and more reliable.

Our licensed links run like fibre links.
Our WiFi stuff is only being used for low capacity backhauls and direct links to our customers.
We also tune down our 802.11 links to use QPSK or QAM16 at max.
QAM64 is just too error-prone. (300 Mbps sync is worthless, if I got jitter and packet loss!)

Thanks for the input Sup. I was also looking at 60ghz unlicensed wireless. Bridgewave GE60 (about $17k for the link). Can you briefly explain the lincesing process in case I go that route? Mainly what FCC form, approx cost and time to get it.

I am not from the US, so - unfortunately - I cannot help you with your licensing procedures.

In Germany you need to get in touch with the BNetzA and negotiate with them, which frequencies you might use.
Prices varies depending on frequency, used bandwidth and coverage area.

Thanks for the input Sup. I was also looking at 60ghz unlicensed wireless. Bridgewave GE60 (about $17k for the link). Can you briefly explain the lincesing process in case I go that route? Mainly what FCC form, approx cost and time to get it.

A GE60 won't work at 5 miles btw. You'll need to go up to to the 80ghz units.

yea..I know. My immediate need is for a 500mbs link at less than 1/2mile.

First you say less than five miles now less than 1/2 mile. It's hard to give any input when your distances changes.

It's not that my distances change rather I have multiple sites I'm working with. The longest being less than 5 miles. I didn't think it was practical to state the distance at every site but instead state my longest distance. I assumed that if this could be done at my longest distance then it could also be done for the shorter links. Are you implying that this can be done in a practical manner by bonding multiple 802.11 links differently than what is suggested above if my distance is less than 1/2 mile?

At a half mile there are more options for a gigabyte link than at 5 miles. You have free space optics for one.

Thanks again MCT. I'm aware of all the other options (free space optics, etc) but wanted to see if it could be done with 802.11.

This is going to be $MONEY$

with at least 5 discreet links in unlicensed bands, you will use up the entire 5Ghz spectrum AND need a link in 2.4Ghz too. Now you need to bond these with something that can handle that much throughput in a bond, basically one of the powerPC devices like an 1100Ahx2.

If you can arrange all this, then you have your next hurdle. it looks something like this

4ms
4ms
7ms
16ms
8ms
4ms
4ms
7ms
16ms
8ms
4ms
4ms
7ms
16ms
8ms


yeah, that's your ping times as packets are round-robined across the 5 links, all with different noise levels and brief latency spikes etc etc. jjjjittterrrrr

Basically I am saying you need to look at licensed products.

where does mikrotik figure in this entire posting?

-sid

where does mikrotik figure in this entire posting?

The OP was trying to solve his problem within the capabilities & limitations of MT equipment.