View source for OVS

== Openvswitch ==
https://wiki.alpinelinux.org/wiki/OpenVSwitch

alpine linux 3.13 changed to use ifupdown-ng by default, mainly replacing netmask by the cidr notation

before
 address 10.11.12.0
 netmask 255.255.255.0

after
 address 10.11.12.0/24 

{{Cat|/etc/network/interfaces|<nowiki>
 auto lo
 iface lo inet loopback
 
 auto eth0
 iface eth0 inet static
     address 10.0.12.5
     netmask 255.255.255.0
     gateway 10.0.12.1
     hostname alpine
 
 auto lan eth1 eth2 eth3 eth4
 iface eth1 inet manual
   up ifconfig eth1 0.0.0.0 up
   down ifconfig eth1 down
 iface eth2 inet manual
   up ifconfig eth2 0.0.0.0 up
   down ifconfig eth2 down
 iface eth3 inet manual
   up ifconfig eth3 0.0.0.0 up
   down ifconfig eth3 down
 iface eth4 inet manual
   up ifconfig eth4 0.0.0.0 up
   down ifconfig eth4 down
 iface lan inet manual
   up ifconfig lan 192.168.1.5 up
   down ifconfig lan down
 
 auto wan eth5
 iface eth5 inet manual
   up ifconfig eth5 0.0.0.0 up
   down ifconfig eth5 down
 iface wan inet dhcp
 iface6 wan inet auto
</nowiki>}}

 rc-update show -v
 rc-update del ovs-modules default
 rc-update del ovs-vswitchd default
 rc-update del ovsdb-server default
 rc-update add ovs-modules boot
 rc-update add ovs-vswitchd boot
 rc-update add ovsdb-server boot

 ip link set dev eth2 up

 ovs-vsctl add-br lan
 ovs-vsctl add-br wan
 ovs-vsctl list-br

 ovs-vsctl add-port lan eth1
 ovs-vsctl add-port lan eth2
 ovs-vsctl add-port lan eth3
 ovs-vsctl del-port lan eth3
 ovs-vsctl list-ports lan

 ovs-vsctl add-port lan eth0
 ovs-vsctl list-ports wan

 ovs-appctl fdb/show voip
 ovs-appctl fdb/show lan

{{Cat|/etc/xen/xl.conf|<nowiki>
 vif.default.script="vif-openvswitch"
 vif.default.bridge="lan"</nowiki>}}