OpenVSwitch

This document describes how to configure an OpenVSwitch in Alpine Linux.

Installing OVS

apk add openvswitch
rc-update add ovs-modules
rc-update add ovsdb-server
rc-update add ovs-vswitchd
rc-service ovs-modules start
rc-service ovsdb-server start
rc-service ovs-vswitchd start

Using ovs-vsctl

Open VSwithes are manually managed with the ovs-vsctl command.

To manually create a switch named "lan":

ovs-vsctl add-br lan

To add interface eth0 to the switch "lan":

ovs-vsctl add-port lan eth0

Note that you need to set the link status to up on the added interfaces.

ip link set dev eth0 up

Configuration file

configured in /etc/network/interfaces

auto eth0 lan
iface eth0 inet manual
 up ifconfig eth0 0.0.0.0 up
 down ifconfig eth0 down

iface lan inet dhcp

Caveats

Beware to have OVS package files available with no hassle at next reboot! this ca be a problem when running from ram with no cache...