1.安裝依賴包：
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.預處理：
ovs下載地址：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.構建RPM包：
rpmbuild -bb --nocheck ~/rpmbuild/SOURCES/openvswitch-2.5.0/rhel/openvswitch_no_kmod.spec
4.安裝：
yum localinstall ~/rpmbuild/RPMS/x86_64/openvswitch-2.5.0-1.x86_64.rpm
5.啟動相關服務：
systemctl enable openvswitch.service systemctl start openvswitch.service systemctl status openvswitch.service
查看ovs版本
ovs-appctl --version