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Red Hat network scripts integration ----------------------------------- The RPM packages for Open vSwitch provide some integration with Red Hat's network scripts. Using this integration is optional. To use the integration for a Open vSwitch bridge or interface named <name>, create or edit /etc/sysconfig/network-scripts/ifcfg-<name>. This is a shell script that consists of a series of VARIABLE=VALUE assignments. The following OVS-specific variable names are supported: - DEVICETYPE: Always set to "ovs". - TYPE: If this is "OVSBridge", then this file represents an OVS bridge named <name>. Otherwise, it represents a port on an OVS bridge and TYPE must have one of the following values: * "OVSPort", if <name> is a physical port (e.g. eth0) or virtual port (e.g. vif1.0). * "OVSIntPort", if <name> is an internal port (e.g. a tagged VLAN). * "OVSBond", if <name> is an OVS bond. - OVS_BRIDGE: If TYPE is anything other than "OVSBridge", set to the name of the OVS bridge to which the port should be attached. - OVS_OPTIONS: Optionally, extra options to set in the "Port" table when adding the port to the bridge, as a sequence of column[:key]=value options. For example, "tag=100" to make the port an access port for VLAN 100. See the documentation of "add-port" in ovs-vsctl(8) for syntax and the section on the Port table in ovs-vswitchd.conf.db(5) for available options. - OVS_EXTRA: Optionally, additional ovs-vsctl commands, separated by "--" (double dash). - BOND_IFACES: For "OVSBond" interfaces, a list of physical interfaces to bond together. Note ---- "ifdown" on a bridge will not bring individual ports on the bridge down. "ifup" on a bridge will not add ports to the bridge. This behavior should be compatible with standard bridges (with TYPE=Bridge). Examples -------- Standalone bridge: ==> ifcfg-ovsbridge0 <== DEVICE=ovsbridge0 ONBOOT=yes DEVICETYPE=ovs TYPE=OVSBridge BOOTPROTO=static IPADDR=A.B.C.D NETMASK=X.Y.Z.0 HOTPLUG=no Enable DHCP on the bridge: * Needs OVSBOOTPROTO instead of BOOTPROTO. * All the interfaces that can reach the DHCP server as a space separated list in OVSDHCPINTERFACES. DEVICE=ovsbridge0 ONBOOT=yes DEVICETYPE=ovs TYPE=OVSBridge OVSBOOTPROTO="dhcp" OVSDHCPINTERFACES="eth0" HOTPLUG=no Adding physical eth0 to ovsbridge0 described above: ==> ifcfg-eth0 <== DEVICE=eth0 ONBOOT=yes DEVICETYPE=ovs TYPE=OVSPort OVS_BRIDGE=ovsbridge0 BOOTPROTO=none HOTPLUG=no Tagged VLAN interface on top of ovsbridge0: ==> ifcfg-vlan100 <== DEVICE=vlan100 ONBOOT=yes DEVICETYPE=ovs TYPE=OVSIntPort BOOTPROTO=static IPADDR=A.B.C.D NETMASK=X.Y.Z.0 OVS_BRIDGE=ovsbridge0 OVS_OPTIONS="tag=100" OVS_EXTRA="set Interface $DEVICE external-ids:iface-id=$(hostname -s)-$DEVICE-vif" HOTPLUG=no Bonding: ==> ifcfg-bond0 <== DEVICE=bond0 ONBOOT=yes DEVICETYPE=ovs TYPE=OVSBond OVS_BRIDGE=ovsbridge0 BOOTPROTO=none BOND_IFACES="gige-1b-0 gige-1b-1 gige-21-0 gige-21-1" OVS_OPTIONS="bond_mode=balance-tcp lacp=active" HOTPLUG=no ==> ifcfg-gige-* <== DEVICE=gige-* ONBOOT=yes HOTPLUG=no Reporting Bugs -------------- Please report problems to email@example.com.