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最近在研究学习Open vSwitch,准备在本地Ubuntu14.04机器上安装一下,并基于其创建一个KVM虚拟机,下面就简要记录下在Ubuntu14.04系统上安装Open vSwitch的过程。
1、由于之前安装了KVM,所以在本机生成了一个名为virbr0的bridge,这里我们需要事先将其删除,否则可能会与Open vSwitch产生不兼容的问题,命令如下:
?? virsh net-destroy default Network default destroyed ?? virsh net-autostart --disable default Network default unmarked as autostarted
2、这里我们同样也不需要bridge模块:
?? sudo aptitude purge ebtables The following packages will be REMOVED: ebtables{p} 0 packages upgraded, 0 newly installed, 1 to remove and 37 not upgraded. Need to get 0 B of archives. After unpacking 379 kB will be freed. Do you want to continue? [Y/n/?] y (Reading database ... 230918 files and directories currently installed.) Removing ebtables (2.0.10.4-3ubuntu1) ... * Clearing ebtables rulesets [ OK ] Purging configuration files for ebtables (2.0.10.4-3ubuntu1) ... Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
3、下面开始安装openvswitch相关包:
?? sudo apt-get install openvswitch-switch
4、查看下ovs的运行状况:
?? ps -ea | grep ovs 10637 ? 00:00:00 ovsdb-server 10647 ? 00:00:00 ovs-vswitchd
5、查看下安装的ovs的版本:
?? ovs-appctl --version ovs-appctl (Open vSwitch) 2.0.2 Compiled May 13 2015 18:49:53
6、查看下当前ovs支持的OpenFlow协议的版本:
?? ovs-ofctl --version ovs-ofctl (Open vSwitch) 2.0.2 Compiled May 13 2015 18:49:53 OpenFlow versions 0x1:0x4
7、通过ovs创建一个网桥 br0,供kvm虚拟机使用:
?? sudo ovs-vsctl add-br br0 ?? ifconfig br0 Link encap:Ethernet HWaddr 12:72:fd:75:e5:4b inet6 addr: fe80::4c0a:7bff:fec6:98d7/64 Scope:Link UP BROADCAST RUNNING MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:7 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:578 (578.0 B)
通过ifconfig命令,我们发现多了一个br0网桥。
8、将物理网卡eth0添加到br0上:
?? sudo ovs-vsctl add-port br0 eth0
这步执行后,发现无法再访问外网,不过没关系,我们可以按照如下步骤解决:
1)先清除eth0的配置:
?? sudo ifconfig eth0 0
2)让br0自动获取ip地址:
?? sudo dhclient br0
3)此时就又可以通外网了:
?? ping www.baidu.com PING www.a.shifen.com (119.75.217.109) 56(84) bytes of data. 64 bytes from 119.75.217.109: icmp_seq=1 ttl=54 time=30.9 ms 64 bytes from 119.75.217.109: icmp_seq=2 ttl=54 time=31.9 ms
9、最后查看下目前br0和eth0的情况:
?? sudo ovs-vsctl show 1e6548a9-956e-4b86-b743-f8da0aa2b922 Bridge "br0" Port "br0" Interface "br0" type: internal Port "eth0" Interface "eth0" ovs_version: "2.0.2"
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原文地址:http://www.cnblogs.com/CasonChan/p/4603873.html