blob: af029b3ca2abe58ba54bff2fdbc7363248fa6a36 (
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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
|
.. SPDX-License-Identifier: GPL-2.0
=======================================
DSA switch configuration from userspace
=======================================
The DSA switch configuration is not integrated into the main userspace
network configuration suites by now and has to be performed manualy.
.. _dsa-config-showcases:
Configuration showcases
-----------------------
To configure a DSA switch a couple of commands need to be executed. In this
documentation some common configuration scenarios are handled as showcases:
*single port*
Every switch port acts as a different configurable Ethernet port
*bridge*
Every switch port is part of one configurable Ethernet bridge
*gateway*
Every switch port except one upstream port is part of a configurable
Ethernet bridge.
The upstream port acts as different configurable Ethernet port.
All configurations are performed with tools from iproute2, which is available
at https://www.kernel.org/pub/linux/utils/net/iproute2/
Through DSA every port of a switch is handled like a normal linux Ethernet
interface. The CPU port is the switch port connected to an Ethernet MAC chip.
The corresponding linux Ethernet interface is called the master interface.
All other corresponding linux interfaces are called slave interfaces.
The slave interfaces depend on the master interface. They can only brought up,
when the master interface is up.
In this documentation the following Ethernet interfaces are used:
*eth0*
the master interface
*lan1*
a slave interface
*lan2*
another slave interface
*lan3*
a third slave interface
*wan*
A slave interface dedicated for upstream traffic
Further Ethernet interfaces can be configured similar.
The configured IPs and networks are:
*single port*
* lan1: 192.0.2.1/30 (192.0.2.0 - 192.0.2.3)
* lan2: 192.0.2.5/30 (192.0.2.4 - 192.0.2.7)
* lan3: 192.0.2.9/30 (192.0.2.8 - 192.0.2.11)
*bridge*
* br0: 192.0.2.129/25 (192.0.2.128 - 192.0.2.255)
*gateway*
* br0: 192.0.2.129/25 (192.0.2.128 - 192.0.2.255)
* wan: 192.0.2.1/30 (192.0.2.0 - 192.0.2.3)
.. _dsa-tagged-configuration:
Configuration with tagging support
----------------------------------
The tagging based configuration is desired and supported by the majority of
DSA switches. These switches are capable to tag incoming and outgoing traffic
without using a VLAN based configuration.
single port
~~~~~~~~~~~
.. code-block:: sh
# configure each interface
ip addr add 192.0.2.1/30 dev lan1
ip addr add 192.0.2.5/30 dev lan2
ip addr add 192.0.2.9/30 dev lan3
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
# bring up the slave interfaces
ip link set lan1 up
ip link set lan2 up
ip link set lan3 up
bridge
~~~~~~
.. code-block:: sh
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
# bring up the slave interfaces
ip link set lan1 up
ip link set lan2 up
ip link set lan3 up
# create bridge
ip link add name br0 type bridge
# add ports to bridge
ip link set dev lan1 master br0
ip link set dev lan2 master br0
ip link set dev lan3 master br0
# configure the bridge
ip addr add 192.0.2.129/25 dev br0
# bring up the bridge
ip link set dev br0 up
gateway
~~~~~~~
.. code-block:: sh
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
# bring up the slave interfaces
ip link set wan up
ip link set lan1 up
ip link set lan2 up
# configure the upstream port
ip addr add 192.0.2.1/30 dev wan
# create bridge
ip link add name br0 type bridge
# add ports to bridge
ip link set dev lan1 master br0
ip link set dev lan2 master br0
# configure the bridge
ip addr add 192.0.2.129/25 dev br0
# bring up the bridge
ip link set dev br0 up
.. _dsa-vlan-configuration:
Configuration without tagging support
-------------------------------------
A minority of switches are not capable to use a taging protocol
(DSA_TAG_PROTO_NONE). These switches can be configured by a VLAN based
configuration.
single port
~~~~~~~~~~~
The configuration can only be set up via VLAN tagging and bridge setup.
.. code-block:: sh
# tag traffic on CPU port
ip link add link eth0 name eth0.1 type vlan id 1
ip link add link eth0 name eth0.2 type vlan id 2
ip link add link eth0 name eth0.3 type vlan id 3
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
ip link set eth0.1 up
ip link set eth0.2 up
ip link set eth0.3 up
# bring up the slave interfaces
ip link set lan1 up
ip link set lan1 up
ip link set lan3 up
# create bridge
ip link add name br0 type bridge
# activate VLAN filtering
ip link set dev br0 type bridge vlan_filtering 1
# add ports to bridges
ip link set dev lan1 master br0
ip link set dev lan2 master br0
ip link set dev lan3 master br0
# tag traffic on ports
bridge vlan add dev lan1 vid 1 pvid untagged
bridge vlan add dev lan2 vid 2 pvid untagged
bridge vlan add dev lan3 vid 3 pvid untagged
# configure the VLANs
ip addr add 192.0.2.1/30 dev eth0.1
ip addr add 192.0.2.5/30 dev eth0.2
ip addr add 192.0.2.9/30 dev eth0.3
# bring up the bridge devices
ip link set br0 up
bridge
~~~~~~
.. code-block:: sh
# tag traffic on CPU port
ip link add link eth0 name eth0.1 type vlan id 1
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
ip link set eth0.1 up
# bring up the slave interfaces
ip link set lan1 up
ip link set lan2 up
ip link set lan3 up
# create bridge
ip link add name br0 type bridge
# activate VLAN filtering
ip link set dev br0 type bridge vlan_filtering 1
# add ports to bridge
ip link set dev lan1 master br0
ip link set dev lan2 master br0
ip link set dev lan3 master br0
ip link set eth0.1 master br0
# tag traffic on ports
bridge vlan add dev lan1 vid 1 pvid untagged
bridge vlan add dev lan2 vid 1 pvid untagged
bridge vlan add dev lan3 vid 1 pvid untagged
# configure the bridge
ip addr add 192.0.2.129/25 dev br0
# bring up the bridge
ip link set dev br0 up
gateway
~~~~~~~
.. code-block:: sh
# tag traffic on CPU port
ip link add link eth0 name eth0.1 type vlan id 1
ip link add link eth0 name eth0.2 type vlan id 2
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
ip link set eth0.1 up
ip link set eth0.2 up
# bring up the slave interfaces
ip link set wan up
ip link set lan1 up
ip link set lan2 up
# create bridge
ip link add name br0 type bridge
# activate VLAN filtering
ip link set dev br0 type bridge vlan_filtering 1
# add ports to bridges
ip link set dev wan master br0
ip link set eth0.1 master br0
ip link set dev lan1 master br0
ip link set dev lan2 master br0
# tag traffic on ports
bridge vlan add dev lan1 vid 1 pvid untagged
bridge vlan add dev lan2 vid 1 pvid untagged
bridge vlan add dev wan vid 2 pvid untagged
# configure the VLANs
ip addr add 192.0.2.1/30 dev eth0.2
ip addr add 192.0.2.129/25 dev br0
# bring up the bridge devices
ip link set br0 up
|
