We are using a Pepwave MAX-HD4 and have a Speedfusion VPN back to our Data Centre.
All tests so far seem to prove that when using the bonding feature with more than a single sim card, the speed seems to be less than using a single sim card.
I have tried various Sim Card combinations but the results are the same!
The outbound policy is set to Weighted Balance and we are running the latest 6.2 firmware.
If 1 Sim card is used, the speed is 35Mbps.
If more than 1 Sim card is used (any between 2 and 4 total), the speed sits around 20Mbps.
I have disconnected the Speedfusion and used the Pepwave speed checker, the result is 55Mbps so clearly the VPN tunnel is not distributing the packets properly.
There are two similar threads on this that I can find:
One goes back to 2012 and as far as I can tell, the issue is the same and has not been resolved?
Obviously I have logged a ticket but we are looking to use this combination for a decent amount of our Marine Clients and at the moment, it just doesn’t work.
My understanding is that when using Weighted Balance with the Speedfusion, the packets from a Single TCP transaction will be distributed amongst the Sim cards and reassembled at the other end??
If this is the case, why do the speeds drop when using more than 1 Sim card?
I have attached the results of testing. Three Sim Testing for Peplink.docx (251 KB)