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QOS using tc

 
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Old 09-28-2012
QOS using tc
Hello all my friends

Please Read to understand my problem

I have 1 MB bandwidth and two networks then i did traffic control on my two internal interfaces i.e eth1(192.168.3.0/24) and eth2(172.16.3.0/24) (internal) and eth0 (outside)

Then i divided my bandwidth using tc command with the help of my friend

On eth1 :---

tc qdisc add dev eth1 root
tc qdisc add dev eth1 root handle 1:0 htb default 10
tc class add dev eth1 parent 1:0 classid 1:10 htb rate 512kbps ceil 640kbps prio 0
tc filter add dev eth1 parent 1:0 prio 0 protocol ip handle 10 fw flowid 1:10

iptables -A OUTPUT -t mangle -p tcp --sport 80 -j MARK --set-mark 10
service iptables save

For eth2: same as above

It is working but i cannot understand why sport is using above in iptables , i mean it is outgoing traffic why dport is not using here

Please any help
Thanks
 
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LEARN ABOUT V7

tc-matchall

Match-all classifier in tc(8)					       Linux					     Match-all classifier in tc(8)

NAME

       matchall - traffic control filter that matches every packet

SYNOPSIS

       tc filter ... matchall [ skip_sw | skip_hw  ] [ action ACTION_SPEC ] [ classid CLASSID ]

DESCRIPTION

       The matchall filter allows to classify every packet that flows on the port and run a action on it.

OPTIONS

       action ACTION_SPEC
	      Apply an action from the generic actions framework on matching packets.

       classid CLASSID
	      Push matching packets into the class identified by CLASSID.

       skip_sw
	      Do  not  process filter by software. If hardware has no offload support for this filter, or TC offload is not enabled for the inter-
	      face, operation will fail.

       skip_hw
	      Do not process filter by hardware.

EXAMPLES

       To create ingress mirroring from port eth1 to port eth2:

	      tc qdisc	add dev eth1 handle ffff: ingress
	      tc filter add dev eth1 parent ffff:	    
		      matchall skip_sw			    
		      action mirred egress mirror	    
		      dev eth2

       The first command creats an ingress qdisc with handle ffff: on device eth1 where the second command attaches a matchall filters on it  that
       mirrors the packets to device eth2.

       To create egress mirroring from port eth1 to port eth2:

	      tc qdisc add dev eth1 handle 1: root prio
	      tc filter add dev eth1 parent 1:		     
		      matchall skip_sw			     
		      action mirred egress mirror	     
		      dev eth2

       The  first  command  creats  an egress qdisc with handle 1: that replaces the root qdisc on device eth1 where the second command attaches a
       matchall filters on it that mirrors the packets to device eth2.

       To sample one of every 100 packets flowing into interface eth0 to psample group 12:

	      tc qdisc add dev eth0 handle ffff: ingress
	      tc filter add dev eth0 parent ffff: matchall 
		   action sample rate 100 group 12

SEE ALSO

       tc(8),

iproute2							    21 Oct 2015 				     Match-all classifier in tc(8)