Fedora 19: install open vswitch

just referred to http://kashyapc.wordpress.com/2013/07/13/configuring-libvirt-guests-with-an-open-vswitch-bridge/

# cat /etc/fedora-release ;uname -ri Fedora release 19 (Schrödinger’s Cat) 3.11.1-200.fc19.x86_64 x86_64

Fedora 19 box has one NIC called p10p1.

p10p1 gets IP address over DHCP.

# cat /etc/sysconfig/network-scripts/ifcfg-p10p1 DEVICE=p10p1 ONBOOT=yes #BRIDGE=br0 BOOTPROTO=dhcp #

install open vswitch via yum

# yum install openvswitch

start open vswitch

[root@localhost ~]# systemctl enable openvswitch.service ln -s '/usr/lib/systemd/system/openvswitch.service' '/etc/systemd/system/multi-user.target.wants/openvswitch.service' [root@localhost ~]# systemctl start openvswitch.service [root@localhost ~]# systemctl status openvswitch.service openvswitch.service - Open vSwitch Unit   Loaded: loaded (/usr/lib/systemd/system/openvswitch.service; enabled)   Active: active (exited) since 月 2013-09-30 00:09:20 JST; 5s ago  Process: 4117 ExecStart=/bin/true (code=exited, status=0/SUCCESS)

configure open vswitch bridge

# ovs-vsctl add-br ovsbr0

associate ovsbr0 to phsical interface p10p1

Please note that you will lost internet connectivity after issuing following command.

# ovs-vsctl add-port ovsbr0 p10p1

after issuing following commands, you will get internet connectivity again.

[root@localhost ~]# ifconfig p10p1 0.0.0.0 [root@localhost ~]# ifconfig ovsbr0 192.168.11.100 [root@localhost ~]# dhclient ovsbr0 & [1] 4206 # ip addr show dev ovsbr0 8: ovsbr0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN    link/ether 78:e7:d1:7f:84:b7 brd ff:ff:ff:ff:ff:ff    inet 192.168.11.100/24 brd 192.168.11.255 scope global ovsbr0       valid_lft forever preferred_lft forever    inet 192.168.11.5/24 brd 192.168.11.255 scope global secondary ovsbr0       valid_lft forever preferred_lft forever    inet6 fe80::e8ec:5aff:fe59:8655/64 scope link       valid_lft forever preferred_lft forever [root@localhost ~]# [1]+  終了                  dhclient ovsbr0 [root@localhost ~]# ovs-vsctl show 6e8e87c4-700b-4556-b977-cc3fa103d893    Bridge "ovsbr0"        Port "p10p1"            Interface "p10p1"        Port "ovsbr0"            Interface "ovsbr0"                type: internal

edit VM’s xml file to use open vswitch.

# virsh dumpxml f19-vm1    <interface type='bridge'>      <mac address='52:54:00:d0:86:2e'/>      <source bridge='ovsbr0'/>      <virtualport type='openvswitch'>

start the VM

# virsh start f19-vm1

on the VM, confirm that the VM gets an IP address over DHCP.

[root@localhost ~]# ip addr show dev eth0 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 52:54:00:d0:86:2e brd ff:ff:ff:ff:ff:ff    inet 192.168.11.11/24 brd 192.168.11.255 scope global eth0       valid_lft forever preferred_lft forever    inet6 fe80::5054:ff:fed0:862e/64 scope link       valid_lft forever preferred_lft forever [root@localhost ~]# [root@localhost ~]# ping www.google.com -c 1 PING www.google.com (173.194.38.114) 56(84) bytes of data. 64 bytes from nrt19s18-in-f18.1e100.net (173.194.38.114): icmp_seq=1 ttl=53 time=11.2 ms --- www.google.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 11.256/11.256/11.256/0.000 ms