release/src/router/iproute2/examples/diffserv/Edge2

   1 #! /bin/sh -x
   2 #
   3 # sample script on using the ingress capabilities
   4 # This script tags the fwmark on the ingress interface using IPchains
   5 # the result is used first for policing on the Ingress interface then
   6 # for fast classification and re-marking
   7 # on the egress interface
   8 #
   9 #path to various utilities;
  10 #change to reflect yours.
  11 #
  12 IPROUTE=/root/DS-6-beta/iproute2-990530-dsing
  13 TC=$IPROUTE/tc/tc
  14 IP=$IPROUTE/ip/ip
  15 IPCHAINS=/root/DS-6-beta/ipchains-1.3.9/ipchains
  16 INDEV=eth2
  17 EGDEV="dev eth1"
  18 #
  19 # tag all incoming packets from host 10.2.0.24 to value 1
  20 # tag all incoming packets from host 10.2.0.3 to value 2
  21 # tag the rest of incoming packets from subnet 10.2.0.0/24 to value 3
  22 #These values are used in the egress
  23 ############################################################
  24 $IPCHAINS -A input -s 10.2.0.0/24 -m 3
  25 $IPCHAINS -A input -i $INDEV -s 10.2.0.24 -m 1
  26 $IPCHAINS -A input -i $INDEV -s 10.2.0.3 -m 2
  27 ############################################################
  28 #
  29 # install the ingress qdisc on the ingress interface
  30 ############################################################
  31 $TC qdisc add dev $INDEV handle ffff: ingress
  32 ############################################################
  33
  34 #
  35 # attach a fw classifier to the ingress which polices anything marked
  36 # by ipchains to tag value 3 (The rest of the subnet packets -- not
  37 # tag 1 or 2) to not go beyond 1.5Mbps
  38 # Allow up to at least 60 packets to burst (assuming maximum packet
  39 # size of # 1.5 KB) in the long run and upto about 6 packets in the
  40 # shot run
  41
  42 ############################################################
  43 $TC filter add dev $INDEV parent ffff: protocol ip prio 50 handle 3 fw \
  44 police rate 1500kbit burst 90k mtu 9k drop flowid :1
  45 ############################################################
  46
  47 ######################## Egress side ########################
  48
  49
  50 # attach a dsmarker
  51 #
  52 $TC qdisc add $EGDEV handle 1:0 root dsmark indices 64
  53 #
  54 # values of the DSCP to change depending on the class
  55 #
  56 $TC class change $EGDEV classid 1:1 dsmark mask 0x3 \
  57        value 0xb8
  58 $TC class change $EGDEV classid 1:2 dsmark mask 0x3 \
  59        value 0x28
  60 $TC class change $EGDEV classid 1:3 dsmark mask 0x3 \
  61        value 0x48
  62 #
  63 #
  64 # The class mapping
  65 #
  66 $TC filter add $EGDEV parent 1:0 protocol ip prio 4 handle 1 fw classid 1:1
  67 $TC filter add $EGDEV parent 1:0 protocol ip prio 4 handle 2 fw classid 1:2
  68 $TC filter add $EGDEV parent 1:0 protocol ip prio 4 handle 3 fw classid 1:3
  69 #
  70
  71 #
  72 echo "---- qdisc parameters Ingress  ----------"
  73 $TC qdisc ls dev $INDEV
  74 echo "---- Class parameters Ingress  ----------"
  75 $TC class ls dev $INDEV
  76 echo "---- filter parameters Ingress ----------"
  77 $TC filter ls dev $INDEV parent ffff:
  78
  79 echo "---- qdisc parameters Egress  ----------"
  80 $TC qdisc ls $EGDEV
  81 echo "---- Class parameters Egress  ----------"
  82 $TC class ls $EGDEV
  83 echo "---- filter parameters Egress ----------"
  84 $TC filter ls $EGDEV parent 1:0
  85 #
  86 #deleting the ingress qdisc
  87 #$TC qdisc del $DEV ingress