1.安装依赖包：
- yum -y install make gcc openssl-devel autoconf automake rpm-build redhat-rpm-config
- yum -y install python-devel openssl-devel kernel-devel kernel-debug-devel libtool wget
2.预处理：
- mkdir -p ~/rpmbuild/SOURCES
- wget http://openvswitch.org/releases/openvswitch-2.5.0.tar.gz
- cp openvswitch-2.5.0.tar.gz ~/rpmbuild/SOURCES/
- tar xfz openvswitch-2.5.0.tar.gz
- sed ‘s/openvswitch-kmod, //g‘ openvswitch-2.5.0/rhel/openvswitch.spec > openvswitch-2.5.0/rhel/openvswitch_no_kmod.spec
3.构建RPM包：
- rpmbuild -bb --nocheck ~/openvswitch-2.5.0/rhel/openvswitch_no_kmod.spec
4.安装：
- yum localinstall ~/rpmbuild/RPMS/x86_64/openvswitch-2.5.0-1.x86_64.rpm
5.启动相关服务：
- systemctl start openvswitch.service
centos7 安装 openvswitch
原文：http://www.cnblogs.com/mhc-fly/p/7615864.html
