shorewall_code/Shorewall/tcclasses

#
# Shorewall version 3.3 - Tcclasses File
#
# Based on tc4shorewall version 0.5 by Arne Bernin
#
# /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.
#
#	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
#
#	PRIORITY	The priority in which classes will be serviced by
#			the packet shaping scheduler and also the priority
#			in which bandwidth in excess of the rate will be
#			given to each class.
#
#			Higher priority classes will experience less delay
#			since they are serviced first.  Priority values
#			are serviced in ascending order (e.g. 0 is higher
#			priority than 1).
#
#			Classes may be set to the same priority, in which
#			case they will be serviced as equals.
#
#	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=0x<value>[/0x<mask>]  (mask defaults to 0xff)
#					- this lets you define a classifier
#					for the given <value>/<mask>
#					combination of the IP packet's
#					TOS/Precedence/DiffSrv octet (aka the
#					TOS byte).  Please note, classifiers
#					override all mark settings, so if you
#					define a classifer for a class, all
#					traffic having that mark will go in it
#					regardless of any mark set on the
#					packet by a firewall/mangle filter.
#
#					NOTE: multiple tos= statements may be
#					applied per class and per interface,
#					but a given value/mask pair is valid
#					for only ONE class per interface.
#
#			tos-<tosname>	- aliases for the following TOS octet
#					value and mask encodings.  TOS
#					encodings of the "TOS byte" have been
#					deprecated in favor of diffserve
#					classes, but programs like ssh,
#					rlogin, and ftp still use them.
#
#   					tos-minimize-delay 	 0x10/0x10
#                               	tos-maximize-throughput	 0x08/0x08
#                               	tos-maximize-reliability 0x04/0x04
#                               	tos-minimize-cost	 0x02/0x02
#                               	tos-normal-service	 0x00/0x1e
#
#					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. You have 4 classes
#			here, the first you can use for voice	over IP
#			traffic, the second interactive traffic (e.g.
#			ssh/telnet but not scp), the third will be for all
#			unclassified traffic, and the forth is for low
#			priority traffic (e.g. peer-to-peer).
#
#			The voice traffic in the first class will be
#			guaranteed a minimum of 100kbps and always be
#			serviced first (because of the low priority number,
#			giving less delay) and will be granted excess
#			bandwidth (up to 180kbps, the class ceiling) first,
#			before any other traffic.  A single VOIP stream,
#			depending upon codecs, after encapsulation, can take
#			up to 80kbps on a PPOE/DSL link, so we pad a little
#			bit just in case.  (TOS byte values 0xb8 and 0x68
#			are DiffServ classes EF and AFF3-1 respectively and
#			are often used by VOIP devices).
#
#			Interactive traffic (tos-minimum-delay)	and
#			TCP acks (and ICMP echo traffic if you use the example
#			in tcrules) and any packet with a mark of 2 will be
#			guaranteed 1/4 of the link bandwidth, and may extend
#			up to full speed of the link.
#
#			Unclassified traffic and packets marked as 3 will be
#			guaranteed 1/4th of the link bandwidth, and may extend
#			to the full speed of the link.
#
#			Packets marked with 4 will be treated as low priority
#			packets.  (The tcrules example marks p2p traffic as
#			such.)  If the link is congested, they're only
#			guaranteed 1/8th of the speed, and even if the link is
#			empty, can only expand to 80% of link bandwidth just
#			as a precaution in case there are upstream queues we
#			didn't account for. This is the last class to get
#			additional bandwidth and the last to get serviced by
#			the scheduler because of the low priority.
#
#		ppp0  1  100kbit  180kbit   1  tos=0x68/0xfc,tos=0xb8/0xfc
#		ppp0  2  full/4   full	    2  tcp-ack,tos-minimize-delay
#		ppp0  3	 full/4   full	    3  default
#		ppp0  4	 full/8   full*8/10 4
#
###############################################################################
#INTERFACE	MARK	RATE	CEIL	PRIORITY	OPTIONS
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE