本文是openstack部署实战第2版的实验手册，环境是阿里云上的，系统用得是centos7.2。
Open vSwitch 开放的软件虚拟机交换机
安装步骤
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[root@hequan ~]
# uname -r
3.10.0-327.22.2.el7.x86_64
[root@hequan ~]
# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
yum -y
install
wget openssl-devel kernel-devel
yum groupinstall
"Development Tools"
[root@hequan ~]
# adduser ovswitch
[root@hequan ~]
# su - ovswitch
[ovswitch@hequan ~]$ wget http:
//openvswitch
.org
/releases/openvswitch-2
.5.0.
tar
.gz
[ovswitch@hequan ~]$
tar
zxvf openvswitch-2.5.0.
tar
.gz
[ovswitch@hequan ~]$
mkdir
-p ~
/rpmbuild/SOURCES
[ovswitch@hequan ~]$
sed
's/openvswitch-kmod, //g'
openvswitch-2.5.0
/rhel/openvswitch
.spec > openvswitch-2.5.0
/rhel/openvswitch_no_kmod
.spec
[ovswitch@hequan ~]$
cp
openvswitch-2.5.0.
tar
.gz rpmbuild
/SOURCES/
[ovswitch@hequan ~]$ rpmbuild -bb --without check ~
/openvswitch-2
.5.0
/rhel/openvswitch_no_kmod
.spec
[ovswitch@hequan ~]$
exit
[root@hequan ~]
# yum localinstall /home/ovswitch/rpmbuild/RPMS/x86_64/openvswitch-2.5.0-1.x86_64.rpm
[root@hequan ~]
# systemctl start openvswitch.service
[root@hequan ~]
# systemctl status openvswitch.service -l
[root@hequan ~]
# chkconfig openvswitch on
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测试网桥
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systemctl stop NetworkManager.service
systemctl disable NetworkManager.service
ovs-vsctl add-br br0
ovs-vsctl add-port br0 eth1
ovs-vsctl show
d8fb371e-5b17-40af-a358-9a207b4e44e0
Bridge
"br0"
Port
"br0"
Interface
"br0"
type
: internal
Port
"eth1"
Interface
"eth1"
ovs_version:
"2.5.0"
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##修改前
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[root@hequan ~]
# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
ONBOOT=
yes
BOOTPROTO=static
IPADDR=115.29.107.17
NETMASK=255.255.252.0
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##修改后
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[root@hequan ~]
# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
DEVICETYPE=ovs
TYPE=OVSPort
OVS_BRIDGE=br0
ONBOOT=
yes
BOOTPROTO=nono
[root@hequan ~]
# cat /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE=br0
DEVICETYPE=ovs
TYPE=OVSBridge
ONBOOT=
yes
BOOTPROTO=none
IPADDR=115.29.107.17
NETMASK=255.255.252.0
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重启
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[root@hequan ~]
# systemctl restart network.service
[root@hequan ~]
# /etc/init.d/openvswitch restart ##可以用外网连接了
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重启后，还是可以生效的
VXLAN，Virtual Extensible LAN，顾名思义，是VLAN的扩展版本。VXLAN技术主要用来增强在云计算环境下网络的扩展能力。
待测试
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[root@lamp ~]
# ovs-vsctl add-port br0 vx1 -- set interface vx1 type=vxlan options:remote_ip=192.168.10.12
[root@lamp ~]
# ovs-vsctl show
1bb23a58-98a5-479e-bc4a-7638aeb8408d
Bridge
"br0"
Port
"br0"
Interface
"br0"
type
: internal
Port
"eth0"
Interface
"eth0"
Port
"vx1"
Interface
"vx1"
type
: vxlan
options: {remote_ip=
"192.168.10.12"
}
ovs_version:
"2.5.0"
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本文转自 295631788 51CTO博客，原文链接：http://blog.51cto.com/hequan/1829871，如需转载请自行联系原作者
