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@@ -61,6 +61,61 @@ Configuration ------------- read man accel-pptp.conf +Built-in shaper +-------------- +accel-pptp supports tbf based shaper manager. +To enable it uncomment shaper_tbf in [modules] section. +It accepts radius attrbutes in various formats: rate, down-rate/up-rate and cisco-like. Values have to be in kilobits except cisco-like. +For example: +Filter-Id=1000 (means 1000Kbit both up-stream and down-stream rate) +Filter-Id=2000/3000 (means 2000Kbit down-stream rate and 3000Kbit up-stream rate) +To change radius attribute which containes rate information use 'attr' option, for example: +[tbf] +attr=My-Custom-Rate-Attribute +of course this attribute have to be in radius dictionary. +To specify different attributes for down-stream and up-stream rates use 'attr-down' and 'attr-up' options, for example: +[tbf] +attr-down=PPPD-Downstream-Speed +attr-up=PPPD-Upstream-Speed + +If you want to use cisco-like format configure accel-pptp as following: +[tbf] +vendor=Cisco +attr=Cisco-AVPair +and send two attributes: +Cisco-AVPair=lcp:interface-config#1=rate-limit input 2000000 8000 8000 conform-action transmit exceed-action drop (which means 2000Kbit up-stream rate and 8Kb burst) +Cisco-AVPair=lcp:interface-config#1=rate-limit output 2000000 8000 8000 conform-action transmit exceed-action drop (which means 2000Kbit down-stream rate and 8Kb burst) + +Advanced shaper using +--------------------- +1. Burst configuration. +If you not using cisco-format then burst calculates from rate and specified burst factors. +To specify burst factors use 'down-burst-factor' and 'up-burst-factor' options, for example: +[tbf] +down-burst-factor=1.0 +up-burst-factor=10.0 +which means that burst for tbf qdisc will be calculated as down-stream rate multiply to 1.0 and burst for policer will be calculated as up-stream rate multiply to 10.0. + +2. Time ranges. +You can specify time ranges to authomatic rate reconfiguration. +To specify time ranges use following sample configuration: +[tbf] +time-range=1,1:00-3:00 +time-range=2,3:00-5:00 +time-range=3,5:00-7:00 +first number is time range identifier. +To specify time range specific rates use following format of radius attributes: range-id,rate, range-id,down-rate/up-rate or cisco-like, for example: +Filter-Id=1000 +Filter-Id=1,2000 +Filter-Id=2,3000 +Filter-Id=3,4000 +which means: set 1000Kbit by default, set 2000Kbit in time range 1, set 3000Kbit in time range 2, set 4000Kbit in time range 3. +You have to pass multiple Filter-Id attributes to utilize this functionality. +Or cisco-like: +Cisco-AVPair=lcp:interface-config#1=rate-limit output access-group 1 1000000 8000 8000 conform-action transmit exceed-action drop +Cisco-AVPair=lcp:interface-config#1=rate-limit input access-group 1 1000000 8000 8000 conform-action transmit exceed-action drop +ans so on... + Warning !!! ----------- |