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161 lines
4.1 KiB
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161 lines
4.1 KiB
Plaintext
Content-Type: text/x-zim-wiki
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Wiki-Format: zim 0.4
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Creation-Date: 2011-03-27T19:56:15+08:00
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====== single pc ======
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Created Sunday 27 March 2011
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1、安装依赖软件
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sudo apt-get install vde2 graphviz gv qemu genisoimage psmisc \
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debootstrap git git-core screen xterm python2.5 python-xml
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注意：python2.5 python-xml 在ubuntu10.10中已经被移除了，可以安装用 python 代替
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2、下载openflowvms
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git clone git://openflowswitch.org/openflow-vms.git openflowvms
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3、将下列路径加到各环境变量中
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[[/home/yourlogname/openflowvms/pylib]] directory is in your PYTHONPATH
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/home/yourlogname/openflowvms/bin directory is in your PATH
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如：
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vim [[/etc/profile]]
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export PATH=$PATH:/home/yourlogname/openflowvms/bin
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export PYTHONPATH=[[/home/yourlogname/openflowvms/pylib]]
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4、下载相关软件包
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http://openflowswitch.org/downloads/diskimages/openflowvms-image.tgz
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http://openflowswitch.org/downloads/diskimages/kernel.bin
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http://openflowswitch.org/downloads/diskimages/openflow1.0-bin.tgz
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各软件包的内容如下：
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hda.dsk disk image used for the hosts running on qemu
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kernel.bin kernel image used for the hosts running on qemu
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ofdatapath openflow switch (userspace)
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ofprotocol openflow protocol module (used to communicate to the controller)
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dpctl openflow datapath control command
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如果以前安装了openflow则最后一个文件不用下载了，直接从系统中copy就可以了。
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5、建立工作目录，并将相关 文件见如下放置
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<working directory>
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|- openflow.cd
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|- ofprotcol
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|- dpctl
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|- ofdatapath
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|- kernel.bin
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|- hda.dsk
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6、设置仿真网络的拓扑结构文件
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cp openflowvms/samples/2hosts-1ofsw.vms.xml <working directory>/2hosts-2ofsw.vms.xml
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vim <working directory>/2hosts-2ofsw.vms.xml
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将其修改为如下内容(加粗的为添加的内容)：
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<network name="Simple Network">
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<of_mem>48</of_mem>
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<openflowswitch name="of1">
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<!--To let spawn an xterm-->
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** <xterm>true</xterm> **
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</openflowswitch>
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<openflowswitch name="of2">
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** <xterm>true</xterm> **
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</openflowswitch>
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<host name="host1">
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** <ip><static>192.168.100.1</static></ip> **
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** <xterm>true</xterm> **
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</host>
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** <host name="host2">**
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** <ip><static>192.168.100.2</static></ip> **
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** <xterm>true</xterm> **
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** </host>**
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<link end1="of1" end2="host1" />
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** <link end1="of1" end2="of2" /> **
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<link end1="of2" end2="host2" />
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</network>
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该文件描述的拓扑结构如下：
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{{~/OpenFlow/Slide2.gif}}
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7、验证配置文件有无错误
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xmlstarlet val -e -s [[/home/geekard/openflowvms/xsd/vms.xsd]] 2hosts-2ofsw.vms.xml
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注意：这条语句执行后会报错(xterm对象有误)，但 没有关系。
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8、画出配置文件代表的拓扑结构图
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vms-draw.py 2hosts-2ofsw.vms.xml
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注意：直接执行这条语句时会报错，提示找不到vmxml, 可以在其前面手动加上python库路径就可以了，如下所示：
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PYTHONPATH=/home/geekard/openflowvms/pylib vms-draw.py 2hosts-2ofsw.vms.xml
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9、本机 运行controller , 它在后台监听QEMU虚拟机里的OpenFlow Switch的连接请求
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controller ptcp: &
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10、验证controller是否在后台运行
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netstat -n |grep 6633
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11、运行仿真系统
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vms-start.py -u 2hosts-2ofsw.vms.xml
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对于kernel space switch , 用下个命令代替
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vms-start.py 2hosts-2ofsw.vms.xml
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12、停止仿真
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./<your network name>-stop.sh
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或：
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vms-start.py -k
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<your network name>-stop.sh是运行vms-start.py后，在当前工作目录自动产生的，<your network name>为2hosts-2ofsw.vms.xml文件
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中指定的网络名。
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13、远程登陆虚拟主机和交换机
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等虚拟主机和交换机启动完成后，关闭其窗口，然后执行一下命令
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screen -r ***
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***代表2hosts-2ofsw.vms.xml文件中指定的主机或交换机名，如: of1,of2, host1 , host2 ，就可以登陆到上面去
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11、测试OpenFlow Switch
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screen -r of1
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cd /cdrom
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./dpctl **dump-flows** unix:/tmp/ofsw
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show
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status
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show-protostat
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dump-tables
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dump-ports
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probe
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ping
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注意： **dump-flows** 可以替换为任意dpctl支持的命令。
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