blob: 25e6c0b1039993029e8e2e6f1ea8d5c2d9596e17 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#! /bin/sh -x
#
# sample script on using the ingress capabilities using u32 classifier
# This script tags tcindex based on metering on the ingress
# interface the result is used for fast classification and re-marking
# on the egress interface
# This is an example of a color aware mode marker with PIR configured
# based on draft-wahjak-mcm-00.txt (section 3.1)
#
# The colors are defined using the Diffserv Fields
#path to various utilities;
#change to reflect yours.
#
IPROUTE=/usr/src/iproute2-current
TC=$IPROUTE/tc/tc
IP=$IPROUTE/ip/ip
INDEV=eth0
EGDEV="dev eth1"
CIR1=1500kbit
CIR2=1000kbit
#The CBS is about 60 MTU sized packets
CBS1=90k
CBS2=90k
############################################################
#
# install the ingress qdisc on the ingress interface
$TC qdisc add dev $INDEV handle ffff: ingress
############################################################
#
# Create u32 filters
$TC filter add dev $INDEV parent ffff: protocol ip prio 4 handle 1: u32 \
divisor 1
############################################################
# The meters: Note that we have shared meters in this case as identified
# by the index parameter
meter1=" police index 1 rate $CIR1 burst $CBS1 "
meter2=" police index 2 rate $CIR2 burst $CBS1 "
meter3=" police index 3 rate $CIR2 burst $CBS2 "
meter4=" police index 4 rate $CIR1 burst $CBS2 "
meter5=" police index 5 rate $CIR1 burst $CBS2 "
# All packets are marked with a tcindex value which is used on the egress
# tcindex 1 maps to AF41, 2->AF42, 3->AF43, 4->BE
# *********************** AF41 ***************************
#AF41 (DSCP 0x22) is passed on with a tcindex value 1
#if it doesnt exceed its CIR/CBS
#policer 1 is used.
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 4 u32 \
match ip tos 0x88 0xfc \
$meter1 \
continue flowid :1
#
# if it exceeds the above but not the extra rate/burst below, it gets a
# tcindex value of 2
# policer 2 is used
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 5 u32 \
match ip tos 0x88 0xfc \
$meter2 \
continue flowid :2
#
# if it exceeds the above but not the rule below, it gets a tcindex value
# of 3 (policer 3)
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 6 u32 \
match ip tos 0x88 0xfc \
$meter3 \
drop flowid :3
#
# *********************** AF42 ***************************
#AF42 (DSCP 0x24) from is passed on with a tcindex value 2
#if it doesnt exceed its CIR/CBS
#policer 2 is used. Note that this is shared with the AF41
#
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 5 u32 \
match ip tos 0x90 0xfc \
$meter2 \
continue flowid :2
#
# if it exceeds the above but not the rule below, it gets a tcindex value
# of 3 (policer 3)
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 6 u32 \
match ip tos 0x90 0xfc \
$meter3 \
drop flowid :3
#
# *********************** AF43 ***************************
#
#AF43 (DSCP 0x26) from is passed on with a tcindex value 3
#if it doesnt exceed its CIR/CBS
#policer 3 is used. Note that this is shared with the AF41 and AF42
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 6 u32 \
match ip tos 0x98 0xfc \
$meter3 \
drop flowid :3
#
# *********************** BE ***************************
#
# Anything else (not from the AF4*) gets discarded if it
# exceeds 1Mbps and by default goes to BE if it doesnt
# Note that the BE class is also used by the AF4* in the worst
# case
#
$TC filter add dev $INDEV parent ffff: protocol ip prio 7 u32 \
match ip src 0/0\
$meter4 \
drop flowid :4
######################## Egress side ########################
# attach a dsmarker
#
$TC qdisc add $EGDEV handle 1:0 root dsmark indices 64
#
# values of the DSCP to change depending on the class
#note that the ECN bits are masked out
#
#AF41 (0x88 is 0x22 shifted to the right by two bits)
#
$TC class change $EGDEV classid 1:1 dsmark mask 0x3 \
value 0x88
#AF42
$TC class change $EGDEV classid 1:2 dsmark mask 0x3 \
value 0x90
#AF43
$TC class change $EGDEV classid 1:3 dsmark mask 0x3 \
value 0x98
#BE
$TC class change $EGDEV classid 1:3 dsmark mask 0x3 \
value 0x0
#
#
# The class mapping
#
$TC filter add $EGDEV parent 1:0 protocol ip prio 1 \
handle 1 tcindex classid 1:1
$TC filter add $EGDEV parent 1:0 protocol ip prio 1 \
handle 2 tcindex classid 1:2
$TC filter add $EGDEV parent 1:0 protocol ip prio 1 \
handle 3 tcindex classid 1:3
$TC filter add $EGDEV parent 1:0 protocol ip prio 1 \
handle 4 tcindex classid 1:4
#
#
echo "---- qdisc parameters Ingress ----------"
$TC qdisc ls dev $INDEV
echo "---- Class parameters Ingress ----------"
$TC class ls dev $INDEV
echo "---- filter parameters Ingress ----------"
$TC filter ls dev $INDEV parent ffff:
echo "---- qdisc parameters Egress ----------"
$TC qdisc ls $EGDEV
echo "---- Class parameters Egress ----------"
$TC class ls $EGDEV
echo "---- filter parameters Egress ----------"
$TC filter ls $EGDEV parent 1:0
#
#deleting the ingress qdisc
#$TC qdisc del $INDEV ingress
|
