Hello. Since I have installed OpenBSD as a bridge in order to shape the outgoing traffic to our ISP to 110Mb/s, I noticed something strange.
The traffic grows smoothly up to 90Mb/s and then goes up to 110Mb/s but not smoothly at all, rather through steps. A look at the mrtg will make it clear : http://c9x.org/stepfx.png It happens every day and the step effect is often even more visible. The servers behind the firewall can push more than 110Mb/s with no problem. The curve was smooth before the AltQ bridge. The system is not loaded (load is 0.04), NICs are ti(4) and em(4), pf rules are basically "pass all" and all packets are going to the default queue which is 100% of the interface whose bandwidth has been set to 110Mb/s. RED is used, without ECN. Any idea about what could be wrong? Or is it a normal behavior with AltQ and RED? TIA, -Frank. -- __ /*- Frank DENIS (Jedi/Sector One) <j at 42-Networks.Com> -*\ __ \ '/ <a href="http://www.PureFTPd.Org/";> Secure FTP Server </a> \' / \/ <a href="http://www.Jedi.Claranet.Fr/";> Misc. free software </a> \/
