标签：tc 流控
tc主脚本：
#!/bin/bash
#
. /root/tc_functions
NUM=2
DEV=eth0
init_tc $NUM
while : ; do
#IP=`netstat -antup|grep ESTABLISHED |grep 80|cut -d ":" -f8`
IP=`netstat -antup|grep ESTABLISHED|grep 80|awk ‘{print $5}‘ |grep -o "\([0-9]\{1,3\}\.\)\{1,3\}[0-9]\{1,3\}"|sort -rn |uniq -c|awk ‘{print $2}‘`
free=0
for i in $IP
do
IP16=`ip_to_16 $i`
if tc -s filter ls dev $DEV | grep $IP16 &>/dev/null ;then
continue;
fi
for x in `seq $NUM`
do
change $x
if [ $free -eq 1 ];then
tc filter add dev $DEV parent 1: protocol ip prio 16 u32 match ip dst $i flowid 1:$x ;
free=0;
break 1;
fi
done
done
tc filter add dev $DEV parent 1: protocol ip prio 16 u32 match ip dst 0.0.0.0/0 flowid 1:$[$NUM+1] ;
sleep 30
tc filter del dev eth0 parent 1: protocol ip prio 16 u32;
done
tc_functions：
function hd(){
case $1 in
10)
echo a;;
11)
echo b;;
12)
echo c;;
13)
echo d;;
14)
echo e;;
15)
echo f;;
*)
echo $1;;
esac
}
function ip_to_16(){
a=`echo $1|cut -d ‘.‘ -f1 `
b=`echo $1|cut -d ‘.‘ -f2 `
c=`echo $1|cut -d ‘.‘ -f3 `
d=`echo $1|cut -d ‘.‘ -f4 `
a1=$[$a/16]
a2=$[$a%16]
b1=$[$b/16]
b2=$[$b%16]
c1=$[$c/16]
c2=$[$c%16]
d1=$[$d/16]
d2=$[$d%16]
q1=`hd $a1`
q2=`hd $a2`
q3=`hd $b1`
q4=`hd $b2`
q5=`hd $c1`
q6=`hd $c2`
q7=`hd $d1`
q8=`hd $d2`
echo $q1$q2$q3$q4$q5$q6$q7$q8
}
function change(){
PAST=`tc -s class ls dev $DEV|grep Sent |cut -d ‘ ‘ -f3|head -$1|tail -1`
sleep 1
NOW=`tc -s class ls dev $DEV|grep Sent |cut -d ‘ ‘ -f3|head -$1|tail -1`
[ $NOW -eq $PAST ]&& free=1
}
function init_tc(){
tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb r2q 1
local i
for i in `seq $1`
do
tc class add dev eth0 parent 1: classid 1:$i htb rate 1mbit ceil 1mbit
done
tc class add dev eth0 parent 1: classid 1:$[$i+1] htb rate 2mbit ceil 2mbit
}
本文出自 “单季稻” 博客，请务必保留此出处http://linzb.blog.51cto.com/5192423/1766222
标签：tc 流控
原文地址：http://linzb.blog.51cto.com/5192423/1766222
