We just upgraded our leased line from 10mbit/s to 50mbit/s. But can't get the speeds up between two clients.
We are running a Cisco 3745 connected to Cisco 1841 using GRE tunnel.
Tried changing the tcp windows size using iperf.
8k window = 8Mbit/s
16k window = 26Mbit/s
32k window = 28Mbit/s
64k window = 28,5Mbit/s
If i started 10 sessions i can max out the leased line at 48,5Mbit/s so the speed on the line is correct.
Is there something that can be tuned on the routers to get full speed?