After upgrading from a RB3011, the connection speed between my sites, using the GRE Tunnel, has plummeted.
With the RB3011 I could get around 90 Mbps before 1 or more of the cores on the CPU would top out and become the bottleneck over the link.
With the CCR1009-7G I can never get more than 6 Mbps, with practically no load on the CPU.
If I disable the security on the CCR and run the tunnel without encryption, the speed is ~250 Mbps.
Now if I disable the tunnel and VPN into the CCR, I get ~125 Mbps…
I do not understand why I’m getting such poor performance over the GRE Tunnel, and I have unfortunately ran out of ideas to diagnose the issue on my own.
Any help is appreciated.