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Diagnose cause of slow VPN exit traffic
Posted: Thu Oct 08, 2015 1:35 pm
by oxwivi
I've got an edge SoftEther VPS that is connected by another SoftEther server from the local office. Connecting to the edge network gives good enough bandwidth to the resources in the office but with a really heavy lag. And on top of that any traffic exiting from the office (like general browsing) is prohibitively slow.
Connection to edge network was tested using L2TP/IPsec and OpenVPN protocols. No Speedtest.net report, connections time out before the website can load.
How do I diagnose it?
Re: Diagnose cause of slow VPN exit traffic
Posted: Thu Oct 08, 2015 2:17 pm
by oxwivi
To give an idea how slow the traffic is, Google Chrome installer download jumps between ETA of 4-6 hours.
Re: Diagnose cause of slow VPN exit traffic
Posted: Thu Oct 22, 2015 6:33 am
by thisjun
Show your network and server configuration.
Re: Diagnose cause of slow VPN exit traffic
Posted: Thu Oct 22, 2015 8:49 am
by oxwivi
I cannot provide the configuration files any time soon, but following is Traffic Speed Test result with TrafficClient on a device connected to VPS. The TrafficServer is on the Local server cascaded to VPS.
Item Name | Normal View|Simplified View
------------------------------------------------------+---------------+---------------
Time Span for Measurement | 00:00:15.007|
Data Correction for Ethernet Frames | Yes|
Communication Data Volume in Download Direction |1,269,934 Bytes| 1.27 MBytes
Communication Data Volume in Upload Direction |3,436,683 Bytes| 3.44 MBytes
Total Communication Data Volume |4,706,617 Bytes| 4.71 MBytes
Relay Device Input Output Total Throughput Computation| No|
Average Throughput in Download Direction | 676,982 bps| 676.98 Kbps
Average Throughput in Upload Direction | 1,832,042 bps| 1.83 Mbps
Total Average Throughput | 2,509,024 bps| 2.51 Mbps