Hi,
I have a project that uses lwip and I'm running into a little trouble. I'm
using iperf to test the throughput. Currently, when IPV6 is disabled, my
through put is fine. When it is enabled, my throughput drops significantly.
(~17.5 Mbits/sec to ~ 318 Kbits/sec). Below is an excerpt from using Wireshark
to watch the traffic.
No. Time Source Destination Protocol Length Bytes in
flight Calc window size Info
182 21.569596 192.168.1.106 192.168.1.145 TCP 1514 5840
65535 [TCP Window Full] 60067 > 9100 [ACK] Seq=14637 Ack=1
Win=65535 Len=1460
183 21.570669 192.168.1.145 192.168.1.106 TCP 60
5840 9100 > 60067 [ACK] Seq=1 Ack=11717 Win=5840 Len=0
184 21.570670 192.168.1.145 192.168.1.106 TCP 60
5840 [TCP Dup ACK 183#1] 9100 > 60067 [ACK] Seq=1 Ack=11717
Win=5840 Len=0
185 21.570682 192.168.1.106 192.168.1.145 TCP 1514 4380
65535 [TCP Out-Of-Order] 60067 > 9100 [ACK] Seq=11717 Ack=1
Win=65535 Len=1460
186 21.570720 192.168.1.106 192.168.1.145 TCP 1514 5840
65535 [TCP Window Full] 60067 > 9100 [ACK] Seq=16097 Ack=1
Win=65535 Len=1460
187 21.572891 192.168.1.145 192.168.1.106 TCP 60
5840 [TCP Dup ACK 183#2] 9100 > 60067 [ACK] Seq=1 Ack=11717
Win=5840 Len=0
191 22.310334 192.168.1.106 192.168.1.145 TCP 1514 5840
65535 [TCP Retransmission] 60067 > 9100 [ACK] Seq=11717
Ack=1 Win=65535 Len=1460
192 22.312520 192.168.1.145 192.168.1.106 TCP 60
5840 9100 > 60067 [ACK] Seq=1 Ack=13177 Win=5840 Len=0
Is there any idea as to would could be causing the throughput to decrease?
Any help would be greatly appreciated.
Thanks
_______________________________________________
lwip-users mailing list
lwip-users@nongnu.org
https://lists.nongnu.org/mailman/listinfo/lwip-users
