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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 bugs@openvswitch.org.
|
