› Forums › Network Management › VPN › Tuning packet size? High PPS/bw from ACKs over VPN bond link › Reply To: Tuning packet size? High PPS/bw from ACKs over VPN bond link
Something interesting to add is that the excessive upstream bandwidth appears to be specific to the bonding (not the VPN) atleast to an extent. For example when I use iperf to go over a non bonded VPN (it goes faster due to one of my connections is closer to 45/35 than 35/35) but uses less upstream bandwidth during the transfer.
For example over the bond on a single link I see:
Incoming rates: 44692.3 kbits/sec
Outgoing rates: 2325.3 kbits/sec
And when I go over the bonded VPN I see:
Incoming rates: 36914.3 kbits/sec
Outgoing rates: 4422.9 kbits/sec
So its sending a lot more data (almost double) even though its downloading at a lower speed. How does the bonding work? Does it automatically send ACKs out of both interfaces or something?
Anywhere I can read up on the exact bonding method that ZS uses to bond the VPNs?