• SDN
• 安装opendaylight、mininet、 Ovs软件平台启动OpenDayLight的kara程序,安装下组件: od-restconf、od-2switch-switch-ui、 od-mdsal-apidocs、odl-dluxapps-applications.使用Mininet和OpenVswitch构建拓扑，连接ODL的6653端口如下拓扑结构:
• 在浏览器上可以访问ODL管理页面查看网元拓扑结构。
• 通过OVS手工下发流表，H1可以ping通H3，H1、H3无法ping通H2.
• H1启动HTTP-Server功能，WEB端口为8080，H3作为HTTPClient，获取H1的html网页配置文件

opendaylight
一、上传openlight文件并下载

[root@Server01 sdn]# ls
anaconda-ks.cfg
distribution-karaf-0.6.0-Carbon.zip
mininet-2.2.2-2.el7.x86_64.rpm
openvswitch-2.5.0-2.el7.x86_64.rpm
python-networkx-1.8.1-12.el7.noarch.rpm
python-networkx-core-1.8.1-12.el7.noarch.rpm
[root@Server01 /]# yum install  java-1.8.0-openjdk -y 
#安装jdk环境
[root@Server01 /]# systemctl start openvswitch

二、进入ovs目录启动

[root@Server01 /]# unzip distribution-karaf-0.6.0-Carbon.zip  
[root@Server01 /]# cd distribution-karaf-0.6.0-Carbon/bin/
[root@Server01 bin]# ./start  
[root@Server01 bin]# ./client

三、安装组件

opendaylight-user@root>feature:install odl-restconf odl-l2switch-switch-ui odl-mdsal-apidocs odl-dluxapps-applications

四、安装完成进入网页查看

五、创建网络拓扑

[root@Server01 bin]# mn --controller=remote,ip=127.0.0.1,port=6653 --topo=tree,1,3
#创建完成设置流表 ping不通说明流表未启用，设置流表即可、
mininet> dpctl add-flow in_port=1,actions=output:3
*** s1 ------------------------------------------------------------------------
mininet> dpctl add-flow in_port=3,actions=output:1
*** s1 ------------------------------------------------------------------------
mininet> pingall
*** Ping: testing ping reachability
h1 -> X h3 
h2 -> X X 
h3 -> h1 X 
*** Results: 66% dropped (2/6 received)
mininet>

六、启用http-server

mininet> h1 python -m SimpleHTTPServer 8080 &
mininet> sh apt install wget -y
mininet> h3 wget 10.0.0.1:8080
--2022-07-20 12:52:56--  http://10.0.0.1:8080/
Connecting to 10.0.0.1:8080... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1052 (1.0K) [text/html]
Saving to: ‘index.html’
index.html          100%[===================>]   1.03K  --.-KB/s    in 0s      
2022-07-20 12:52:56 (123 MB/s) - ‘index.html’ saved [1052/1052]
mininet>