As our 6.2.0 firmware for Balance / MAX / Surf is now going to open-beta-2. This is a good chance to share more information with you of some new advanced SpeedFusion features - “Asymmetric Connection”, “Connection Mapping”, “Cut-off Latency” and “Packet lost pull-back”.
NOTE These advanced features only apply to devices running PepVPN with SpeedFusion™ Bonding Technology.
From the screenshot above, this is where you create or modify a PepVPN profile, to enable these advanced SpeedFusion features, just click on the (?) help icon located on top right of the WAN Connection Priority table, and you will see the hidden links in the help dialog.
“Asymmetric Connection” - named as “Direction”, you can control a specific WAN to be upload or download only, this is especially useful for WAN like ADSL which is not performing well on upload, then we can configure it to focus on download and let the other WANs to do the upload job.
“Connection Mapping” - named as “Connect to Remote”, you can force a specific WAN connecting to one of the remote WAN only, ignoring all the other remote WANs but only connect to the one you selected. This will be useful when the point-to-point performance of the local WAN are not doing well to all of the remote WANs, but it can do a good job when connecting to a specific remote WAN (you can find this out by using PepVPN Analyzer, and yes, sometimes Inter-ISP traffic are tricky and this will help a lot).
“Cut-off Latency” - named as “Cut-off latency (ms)”, this is simple but extremely useful, especially for cellular connections. You can set a value, in milliseconds, say, 1000, then if the PepVPN tunnels created using this WAN has a latency exceed the configured value, tunnels through this WAN will be suspended temporarily, and will continue to work when the latency drop below the value you set.
Cut-off latency will temporarily suspend a tunnel when it sees a latency value larger than the user defined threshold, this will be done immediately when the latency data is updated and the fastest response time is the RTT (round-trip time). When a tunnel is temporarily suspended, health check packets are still there and latency value will be redetermined every time when a health check packet is replied from the remote side, once the latency is dropped below the defined threshold, the tunnel will become active again and start to transmit user data.
“Packet lost pull-back” - named as “Packet lost pull-back time (ms)”, this need to be cautious when configuring the value, you can set it in milliseconds, say 1000. Then if the tunnel using this WAN has packet loss, the tunnel will be suspended for 1000ms, if you set 2000, it will be suspended for 2000ms. The tips is don’t set this too high, keep it as small as it can, usually the minimum should be the RTT.
Cut-off latency and Packet loss pull back time only affect transmit direction, if you want them to have effect on both transmit and receive, you’ll need to have both PepVPN peers upgraded to firmware 6.2.0 (most updated version is beta 3 for now) and configure these advanced settings on both ends.
Please note that the operation (Cut-off latency and Packet loss pull back time) described above happens on back end only, and will not be noticeable on PepVPN status via Web Admin.
Feel free to ask any questions about these advanced SpeedFusion features and of course if you have any suggestions, please don’t hesitate to let us know.
To learn more about firmware 6.2.0 beta 2, check out the announcement there: