Combining / aggregating internet speed on a TZ600 or TZ670
I have a number of clients with a fiber and cable failover. I've set them up for failover previously. I heard talk about aggregation or SD-WAN functionality but know very little about it. If the ISPs e.g. ATT for fiber and Comcast for cable are not aware of eachother and I don't want them to do any sd-wan modifications - can I just somehow combine the speeds e.g. 100x100 and 500x35 to get closer to 600x135?
If you've actually done this please feel free to tell me about your experience. I prefer not to get the ISPs involved or use any 3rd party sd-wan solution. It sounds like it might be possible from what I've read but I don't want to assume anything as the SD-WAN and link aggregation side of the sonicwall is new to me.