# tc4shorewall Version 0.5 # # # /etc/shorewall/tcclasses # # Define the classes used for traffic shaping in this file. # # A note on the rate/bandwidth definitions used in this file: # # - don't use a space between the integer value and # the unit: 30kbit is valid while 30 kbit is NOT. # # - you can use one of the following units: # # kbps Kilobytes per second # mbps Megabytes per second # kbit Kilobits per second # mbit Megabits per second # bps or a # bare number Bytes per second # # - if you want the values to be calculated for you depending # on the output bandwidth setting defined for an interface # in tcdevices, you can use expressions like the following: # # full/3 causes the bandwidth to be calculated # as 3 of the the full outgoing # speed that is defined. # # full*9/10 will set this bandwidth to 9/10 of # the full bandwidth # # DO NOT add a unit to the rate if it is calculated ! # # Columns are: # # INTERFACE Name of interface. Each interface may be listed only # once in this file. You may NOT specify the name of # an alias (e.g., eth0:0) here; see # http://www.shorewall.net/FAQ.htm#faq18 # # You may NOT specify wildcards here, e.g. if you # have multiple ppp interfaces, you need to put # them all in here! # # Please note that you can only use interface names # in here that have a bandwidth defined in the tcdevices # file # # MARK The mark value which is an integer in the range 1-255. # You define this marks in the tcrules file, marking # the traffic you want to fit in the classes defined # in here. # # You can use the same marks for different Interfaces # # RATE The minimum bandwidth this class should get, # when the traffic load rises. Please note # that first the classes which equal or a lesser priority # value are served. # # You can use the following #Use kbit or kbps(for Kilobytes per second) for # speed, and make sure there is NO space between the # number and the unit. # # CEIL The maximum bandwidth this class is allowed to use # when the link is idle. Useful if you have traffic # which can get full speed when more needed services # (e.g. ssh) are not used. # # You can use the value "full" in here for setting # the maximum bandwidth to the defined output bandwidth # of that interface # # Use kbit or kbps(for Kilobytes per second) for # speed, and make sure there is NO space between the # number and the unit. # # PRIORITY you have to define a priority for the class # Packages in a class with a higher priority (=lesser value) # are handled before lesser priority onces. # You can just define the mark value here also, if you are # increasing the mark values with lesser priority. # # OPTIONS A comma-separated list of options including the # following: # # default - this is the default class for that # interface where all traffic should go, # that is not classified otherwise. # # NOTE: defining default for exactly one # class per interface is mandatory! # # tos- - this lets you define a filter for # the given which lets you # define a value of the Type Of Service # bits in the ip packet which causes # the packet to go in this class. # Please note, that this filter overrides # all mark settings, so if you define # a tos filter for a class all traffic # having that mark will go in it regard- # less of the mark on the packet. # You can use the following # for this option # # tos-minimize-delay (16) # tos-maximize-throughput (8) # tos-maximize-reliability (4) # tos-minimize-cost (2) # tos-normal-service (0) # # NOTE: each of this options is only # valid for ONE class per interface. # # tcp-ack - if defined causes an tc filter to # be created that puts all tcp ack # packets on that interface that have # an size of <=64 Bytes to go in this # class. This is useful for speeding up # downloads. Please note that the size # of the ack packets is limited to 64 # bytes as some applications (p2p for # example) use to make every packet an # ack packet which would cause them # all into here. We want only packets # WITHOUT payload to match, so the size # limit. # # NOTE: This option is only valid for # ONE class per interface. # # # # Example 1: Suppose you are using PPP over Ethernet (DSL) # and ppp0 is the interface for this. The # device has an outgoing bandwidth of 500kbit. # You have 3 classes here, the first you can use for # interactive traffic (ssh) the second for p2p networking # and the last one the rest. They all have a guaranteed # bandwidth of 100kbit upstream, but 1 and 3 can get # full speed if link is idle, 2 is limited to 200kbit # # ppp0 1 100kbit full 1 tcp-ack,tos-minimize-delay # ppp0 2 100kbit 200kbit 2 # ppp0 3 full/3 full 3 default # ################################################################################ #INTERFACE MARK RATE CEIL PRIORITY OPTIONS #LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE