Speedify: Failover Comparison With 4G TP-Link Router (Ubuntu Linux)
Channel: Daniel Rosehill
Date: 2021-09-11

I've recorded a few videos showing how I set up a cellular backup high availability home network using a data only SIM and a couple of basic routers from TP-Link.

To test how well the system was working, I simulated a couple of ISP line failures to see how quickly failover would occur. Depending on whether I used single or dual link failover, the ISP to cellular failover on the TP-Link (hardware) rig took about 20 to 30 seconds.

I tried to replicate the same test with Speedify. Instead of disconnecting ethernet at the software level, I pulled the cable providing ISP connectivity out from the switch the computer was connected to.

The result: failover to cellular happened pretty much instantly!

While I didn't see a major speed improvement using Speedify's Ubuntu client, the speed of the failover was extremely impressive and outpaced TP-Link by almost half a minute (depending on what type of detection I was using). 

TP-Link failover testing for comparison:

https://www.youtube.com/watch?v=MOga566wdUw&ab_channel=DanielRosehill

By: Daniel Rosehill (danielrosehill.co.il)

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