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標(biāo)題: tc 限制下載速度問題！ [打印本頁]

作者: YunThanatos 時間: 2014-12-04 18:43
標(biāo)題: tc 限制下載速度問題！
本人之前沒有用過tc這個命令但是現(xiàn)在需要馬上使用tc來限制本地網(wǎng)卡 eth1 的下載速度并非懶惰不想看文檔實在是來不及了時間緊迫
哪位能夠幫忙一下？寫出tc限制下載速度的shell腳本，多謝了��！
（如限速參數(shù) 100k 1m 1g ）

作者: HH106 時間: 2014-12-05 10:46
網(wǎng)上資料一大堆。google下的時間也沒有?

作者: YunThanatos 時間: 2014-12-05 21:02
回復(fù) 2# HH106

哥們說的對！確實太急躁了

作者: YunThanatos 時間: 2014-12-05 21:06
本帖最后由 YunThanatos 于 2014-12-05 21:06 編輯

這是我修改自官網(wǎng)的一個項目而來的函數(shù)，以方便后來者:

function limit_down_rate() {
  #$1 "100" units:kilobits
  #$1 stop
  #$1 status

  #echo limit_down_rate "$limit_down_rate" > /proc/self/fd/2
  # this code above is changed from project : lartc.org/wondershaper
  # Wonder Shaper
  DOWNLINK=8000 # this is our spot
  UPLINK=80000 # do not concern about it
  DEV=eth0
  # low priority OUTGOING traffic - you can leave this blank if you want
  # low priority source netmasks
  NOPRIOHOSTSRC=80
  # low priority destination netmasks
  NOPRIOHOSTDST=
  # low priority source ports
  NOPRIOPORTSRC=
  # low priority destination ports
  NOPRIOPORTDST=
  #########################################################

   if [ "$1" = "status" ]
   then
      tc -s qdisc ls dev $DEV
      tc -s class ls dev $DEV
   else
      # clean existing down- and uplink qdiscs, hide errors
      tc qdisc del dev $DEV root 2> /dev/null > /dev/null
      tc qdisc del dev $DEV ingress 2> /dev/null > /dev/null

      if [ "$1" != "stop" ]
      then

         if [ -n "$1" ] && [ "$1" -ge "0" ]
         then
         echo haha
         DOWNLINK="$1"
         #UPLINK="$1" # kilobits
         fi

         tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 10mbit
         tc class add dev $DEV parent 1: classid 1:1 cbq rate ${UPLINK}kbit \
         allot 1500 prio 5 bounded isolated
         tc class add dev $DEV parent 1:1 classid 1:10 cbq rate ${UPLINK}kbit \
            allot 1600 prio 1 avpkt 1000

         tc class add dev $DEV parent 1:1 classid 1:20 cbq rate $[9*$UPLINK/10]kbit \
            allot 1600 prio 2 avpkt 1000
         tc class add dev $DEV parent 1:1 classid 1:30 cbq rate $[8*$UPLINK/10]kbit \
            allot 1600 prio 2 avpkt 1000
         tc qdisc add dev $DEV parent 1:10 handle 10: sfq perturb 10
         tc qdisc add dev $DEV parent 1:20 handle 20: sfq perturb 10
         tc qdisc add dev $DEV parent 1:30 handle 30: sfq perturb 10
         tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
               match ip tos 0x10 0xff  flowid 1:10
         tc filter add dev $DEV parent 1:0 protocol ip prio 11 u32 \
               match ip protocol 1 0xff flowid 1:10
         tc filter add dev $DEV parent 1: protocol ip prio 12 u32 \
            match ip protocol 6 0xff \
            match u8 0x05 0x0f at 0 \
            match u16 0x0000 0xffc0 at 2 \
            flowid 1:10
         for a in $NOPRIOPORTDST
         do
            tc filter add dev $DEV parent 1: protocol ip prio 14 u32 \
               match ip dport $a 0xffff flowid 1:30
         done
         for a in $NOPRIOPORTSRC
         do
            tc filter add dev $DEV parent 1: protocol ip prio 15 u32 \
               match ip sport $a 0xffff flowid 1:30
         done
         for a in $NOPRIOHOSTSRC
         do
            tc filter add dev $DEV parent 1: protocol ip prio 16 u32 \
               match ip src $a flowid 1:30
         done
         for a in $NOPRIOHOSTDST
         do
            tc filter add dev $DEV parent 1: protocol ip prio 17 u32 \
               match ip dst $a flowid 1:30
         done
         tc filter add dev $DEV parent 1: protocol ip prio 18 u32 \
            match ip dst 0.0.0.0/0 flowid 1:20
         tc qdisc add dev $DEV handle ffff: ingress
         tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \
            0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1

      fi
   fi
}

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