Reply To: Tuning packet size? High PPS/bw from ACKs over VPN bond link

Home Page 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

#50964

houkouonchi
Member

@ppalias wrote:

You could try messing with the MTU value if it is available.
May I suggest trying with IPERF to measure the exact bandwidth between the 2 endpoints of the bonded vpns.

I already tried messing with the MTU but at low values (like under 1000) it got even worse (up to 8k PPS from 6k) so I switched it back to 1500.

Here is what I get with iperf:

Home -> DC box:

home side:
admin@zeroshell: 05:34 AM :~# iperf -c 10.99.98.1


Client connecting to 10.99.98.1, TCP port 5001
TCP window size: 16.0 KByte (default)


[ 3] local 10.99.98.2 port 53282 connected with 10.99.98.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 77.8 MBytes 65.2 Mbits/sec

DC side:
root@zeroshell root> ./iperf -s


Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)


[ 4] local 10.99.98.1 port 5001 connected with 10.99.98.2 port 53282
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.1 sec 77.8 MBytes 64.5 Mbits/sec

DC Box -> home:

home side:
admin@zeroshell: 05:32 AM :~# iperf -s


Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)


[ 4] local 10.99.98.2 port 5001 connected with 10.99.98.1 port 41422
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.1 sec 77.9 MBytes 64.8 Mbits/sec

DC side:
root@zeroshell root> ./iperf -c 10.99.98.2


Client connecting to 10.99.98.2, TCP port 5001
TCP window size: 16.0 KByte (default)


[ 3] local 10.99.98.1 port 41422 connected with 10.99.98.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 77.9 MBytes 65.2 Mbits/sec

iptraf, mrtg, and gkrellm seem to give me better