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：
ovs下载地址：http://www.openvswitch.org/download/
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 ~/rpmbuild/SOURCES/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 enable openvswitch.service systemctl start openvswitch.service systemctl status openvswitch.service
查看ovs版本
ovs-appctl --version