安装OpenDaylight及Openflow插件

1. 安装 Java 和 Maven

CentOS7：

yum install java-1.8.0-openjdk.x86_64 java-1.8.0-openjdk-devel.x86_64  maven -y

环境变量：

# /etc/profile
...
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-1.el7_7.x86_64
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin

source /etc/profile

Ubuntu16.04：

sudo apt update
sudo apt install openjdk-8-jdk-headless maven
echo JAVA_HOME=export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 >> ~/.bashrc
source ~/.bashrc

mvn -v

2. 安装 OpenDaylight

~$ wget https://nexus.opendaylight.org/content/repositories/public/org/opendaylight/integration/distribution-karaf/0.6.4-Carbon/distribution-karaf-0.6.4-Carbon.zip
~$ unzip distribution-karaf-0.6.4-Carbon.zip
~$ cd distribution-karaf-0.6.4-Carbon

修改配置：

# etc/org.apache.karaf.management.cfg
rmiRegistryHost = 127.0.0.1
rmiServerHost = 127.0.0.1

附：修改 Openflow controller 连接端口（因为SDN控制器默认的连接端口指定为6653和6633，如果在一个系统中需要使用多种SDN控制器的情况下，那么就会出现端口占用无法连接控制器的情况。）

如无冲突，则不需修改。

# etc/opendaylight/datastore/initial/config/default-openflow-connection-config.xml
# etc/opendaylight/datastore/initial/config/legacy-openflow-connection-config.xml
<switch-connection-config xmlns="urn:opendaylight:params:xml:ns:yang:openflow:switch:connection:config">
  <instance-name>openflow-switch-connection-provider-default-impl</instance-name>
  <port>6653</port>
  ...

启动、安装插件：

~/distribution-karaf-0.6.4-Carbon$ cd bin
~/distribution-karaf-0.6.4-Carbon/bin$ export TERM=xterm-color #(ubuntu18需要，ubuntu16不需要)
~/distribution-karaf-0.6.4-Carbon/bin$ ./karaf
opendaylight-user@root>feature:install odl-openflowplugin-flow-services-rest odl-openflowplugin-app-table-miss-enforcer odl-openflowplugin-nxm-extensions odl-restconf odl-l2switch-switch-ui odl-openflowplugin-flow-services-ui odl-mdsal-apidocs odl-dluxapps-applications odl-faas-all

3. 安装Openflowplugin — 开发者使用

用于搭建 Openflowplugin 开发环境。（如无需求，可不安装）

~$ git clone https://github.com/opendaylight/openflowplugin.git
~$ cd openflowplugin/
~/openflowplugin$ git tag
~/openflowplugin$ git checkout release/carbon
~/openflowplugin$ git branch
~/openflowplugin$ mvn clean install -DskipTests -Dmaven.javadoc.skip=true -Dcheckstyle.skip=true
~/openflowplugin$ cd distribution/karaf/target/assembly/bin
~/openflowplugin/distribution/karaf/target/assembly/bin$ ./karaf
opendaylight-user@root>feature:install odl-restconf odl-dlux-core

4. 安装 mininet

~$ sudo apt install net-tools -y

~$ git clone git://github.com/mininet/mininet
~$ cd mininet/
~/mininet$ git tag
~/mininet$ git checkout 2.3.0d6
~/mininet$ cd util
~/mininet/util$ sudo ./install.sh

启动：

~$ sudo mn

5. 使用例子

5.1 mininet 自定义拓扑

# ~/mn-test/topo1.py
from mininet.topo import Topo

class MyTopo(Topo):
    def __init__(self):
        Topo.__init__(self)

        host1 = self.addHost('h1')
        host2 = self.addHost('h2')
        switch1 = self.addSwitch('s1')
        switch2 = self.addSwitch('s2')

        self.addLink(host1, switch1)
        self.addLink(host2, switch2)
        self.addLink(switch1, switch2)

topos = {
    'mytopo': lambda: MyTopo()
}

5.2 连接 ODL controller

~$ sudo mn --custom mn-test/topo1.py --topo mytopo --controller=remote,ip=192.168.1.7,port=6633 --switch ovsk,protocols=OpenFlow13

登录 ODL web 界面，查看 topology，此时只能够看到 switchs。

mininet> pingall
*** Ping: testing ping reachability
h1 -> h2
h2 -> h1
*** Results: 0% dropped (2/2 received)

再次查看，此时能够看到 hosts。

5.3 例子

ps：使用 Postman 测试（关闭防火墙或开放8181端口）。

basic auth: admin:admin

查看节点（GET）：http://192.168.1.7:8181/restconf/operational/opendaylight-inventory:nodes/

查看拓扑（GET）：http://192.168.1.7:8181/restconf/operational/network-topology:network-topology/

查看端口（GET）：/restconf/operational/opendaylight-inventory:nodes/node/openflow:1/node-connector/openflow:1:2

查看流表（GET）：/restconf/operational/opendaylight-inventory:nodes/node/openflow:1/table/0/

参考资料

https://docs.opendaylight.org/en/latest/getting-started-guide/installing_opendaylight.html

https://blog.csdn.net/weixin_40610952/article/details/80378784