# Script to shape up and downlink with traffic that is already MARKed
# Delete all old stuff first
tc qdisc del dev ppp0 root 2> /dev/null > /dev/null
tc qdisc del dev ifb0 root 2> /dev/null > /dev/null
tc qdisc del dev ifb0 ingress 2> /dev/null > /dev/null
tc qdisc del dev ppp0 root 2> /dev/null > /dev/null
tc qdisc del dev ifb0 root 2> /dev/null > /dev/null
tc qdisc del dev ppp0 ingress 2> /dev/null > /dev/null
tc qdisc del dev eth0 root 2> /dev/null > /dev/null
tc qdisc del dev eth0 ingress 2> /dev/null > /dev/null
# Set variables
# The downlink should be slightly less than the ADSL line
# All the classes below should add up to this
DOWNLINK=2200
# Same for the uplink
UPLINK=330
##############################################################################
## downlink via eth0 ##
# A qdisc is a whole set of shaping rules that we apply
# Here we add a HTB qdisc to the interface eth0
# This is known as the root for the interface
# We don't set a default class to stop us shaping local eth0 traffic
# We have to shape at eth0 and not ppp0 as we can only do egress shaping
tc qdisc add dev eth0 root handle 1: htb
# Then we add to the root some overall rate limits
tc class add dev eth0 parent 1: classid 1:1 htb rate ${DOWNLINK}kbit
# Then we go through and add a number of classes to the
# root qdisc. With some qdiscs the classes are automatically
# created. With HTB they are not so we add 4 in total
# with different rate limits for each
# interactive traffic
tc class add dev eth0 parent 1:1 classid 1:10 htb \
rate 100kbit ceil 100kbit prio 0
# web browsing
tc class add dev eth0 parent 1:1 classid 1:30 htb \
rate 1000kbit ceil 1000kbit prio 1
# default traffic
tc class add dev eth0 parent 1:1 classid 1:40 htb \
rate 1000kbit ceil 1000kbit prio 2
# bad boys
tc class add dev eth0 parent 1:1 classid 1:60 htb \
rate 100kbit ceil 100kbit prio 3
# Next we add some more qdiscs. These are different priority
# qdiscs but they each sit on top of the classes already created.
# So the root qdisc dumps traffic in each class, and the qdisc
# here prioritises within that class
tc qdisc add dev eth0 parent 1:10 handle 10: sfq perturb 10
tc qdisc add dev eth0 parent 1:30 handle 30: sfq perturb 10 #flow hash keys dst divisor 1024 #hash ctorigsrc
tc qdisc add dev eth0 parent 1:40 handle 40: sfq perturb 10 #hash ctorigsrc
tc qdisc add dev eth0 parent 1:60 handle 60: sfq perturb 10 #hash ctorigsrc
# Finally we attach some filters to each class
# A filter is what sends a particular packet to a particular class
# This filter uses the iptables marks to allocate them
tc filter add dev eth0 parent 1:0 protocol ip handle 10 fw flowid 1:10
tc filter add dev eth0 parent 1:0 protocol ip handle 30 fw flowid 1:30
tc filter add dev eth0 parent 1:0 protocol ip handle 40 fw flowid 1:40
tc filter add dev eth0 parent 1:0 protocol ip handle 60 fw flowid 1:60
# These are additional filters that hash based on the client IP
# This means that rather than bandwidth being shared between
# several connections (so that one client could get several times
# the bandwidth), each client gets an equal slice of the bandwidth
# regardless of the number of connections they have
tc filter add dev eth0 parent 10: protocol ip handle 10 flow hash keys nfct-dst divisor 1024
tc filter add dev eth0 parent 30: protocol ip handle 30 flow hash keys nfct-dst divisor 1024
tc filter add dev eth0 parent 40: protocol ip handle 40 flow hash keys nfct-dst divisor 1024
tc filter add dev eth0 parent 60: protocol ip handle 60 flow hash keys nfct-dst divisor 1024
########################################## End of downlink configuration ##########################################
###################################################################################################################
## uplink via ppp0 ##
# A qdisc is a whole set of shaping rules that we apply
# Here we add a HTB qdisc to the interface ppp0
# This is known as the root for the interface
# Default class is 40
tc qdisc add dev ppp0 root handle 1: htb default 40
# Then we add to the root some overall rate limits
tc class add dev ppp0 parent 1: classid 1:1 htb rate ${UPLINK}kbit
# Then we go through and add a number of classes to the
# root qdisc. With some qdiscs the classes are automatically
# created. With HTB they are not so we add 4 in total
# with different rate limits each
# interactive traffic
tc class add dev ppp0 parent 1:1 classid 1:10 htb \
rate 50kbit ceil 50kbit prio 0
# web browsing
tc class add dev ppp0 parent 1:1 classid 1:30 htb \
rate 120kbit ceil 200kbit prio 1
# default traffic
tc class add dev ppp0 parent 1:1 classid 1:40 htb \
rate 120kbit ceil 200kbit prio 2
# bad boys
tc class add dev ppp0 parent 1:1 classid 1:60 htb \
rate 40kbit ceil 40kbit prio 3
# Next we add some more qdiscs. These are different priority
# qdiscs but they each sit on top of the classes already created.
# So the root qdisc dumps traffic in each class, and the qdisc
# here prioritises within that class
tc qdisc add dev ppp0 parent 1:10 handle 10: sfq perturb 10
tc qdisc add dev ppp0 parent 1:30 handle 30: sfq perturb 10
tc qdisc add dev ppp0 parent 1:40 handle 40: sfq perturb 10
tc qdisc add dev ppp0 parent 1:60 handle 60: sfq perturb 10
# Finally we attach some filters to each class
# A filter is what sends a particular packet to a particular class
# This filter uses the iptables marks to allocate them
tc filter add dev ppp0 parent 1:0 prio 0 protocol ip handle 10 fw flowid 1:10
tc filter add dev ppp0 parent 1:0 prio 0 protocol ip handle 30 fw flowid 1:30
tc filter add dev ppp0 parent 1:0 prio 0 protocol ip handle 40 fw flowid 1:40
tc filter add dev ppp0 parent 1:0 prio 0 protocol ip handle 60 fw flowid 1:60
# see download comment
tc filter add dev ppp0 parent 10: protocol ip handle 10 flow hash keys nfct-src divisor 1024
tc filter add dev ppp0 parent 30: protocol ip handle 30 flow hash keys nfct-src divisor 1024
tc filter add dev ppp0 parent 40: protocol ip handle 40 flow hash keys nfct-src divisor 1024
tc filter add dev ppp0 parent 60: protocol ip handle 60 flow hash keys nfct-src divisor 1024
################################# End of uplink configuration #####################################################
Courtesy : http://files.andybev.com/web-portal/shape-htb
