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   ovs-vsctl    ( 8 )

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Описание (Description)

The ovs-vsctl program configures ovs-vswitchd(8) by providing a high-level interface to its configuration database. See ovs-vswitchd.conf.db(5) for comprehensive documentation of the database schema.

ovs-vsctl connects to an ovsdb-server process that maintains an Open vSwitch configuration database. Using this connection, it queries and possibly applies changes to the database, depending on the supplied commands. Then, if it applied any changes, by default it waits until ovs-vswitchd has finished reconfiguring itself before it exits. (If you use ovs-vsctl when ovs-vswitchd is not running, use --no-wait.)

ovs-vsctl can perform any number of commands in a single run, implemented as a single atomic transaction against the database.

The ovs-vsctl command line begins with global options (see OPTIONS below for details). The global options are followed by one or more commands. Each command should begin with -- by itself as a command-line argument, to separate it from the following commands. (The -- before the first command is optional.) The command itself starts with command-specific options, if any, followed by the command name and any arguments. See EXAMPLES below for syntax examples.

Linux VLAN Bridging Compatibility The ovs-vsctl program supports the model of a bridge implemented by Open vSwitch, in which a single bridge supports ports on multiple VLANs. In this model, each port on a bridge is either a trunk port that potentially passes packets tagged with 802.1Q headers that designate VLANs or it is assigned a single implicit VLAN that is never tagged with an 802.1Q header.

For compatibility with software designed for the Linux bridge, ovs-vsctl also supports a model in which traffic associated with a given 802.1Q VLAN is segregated into a separate bridge. A special form of the add-br command (see below) creates a ``fake bridge'' within an Open vSwitch bridge to simulate this behavior. When such a ``fake bridge'' is active, ovs-vsctl will treat it much like a bridge separate from its ``parent bridge,'' but the actual implementation in Open vSwitch uses only a single bridge, with ports on the fake bridge assigned the implicit VLAN of the fake bridge of which they are members. (A fake bridge for VLAN 0 receives packets that have no 802.1Q tag or a tag with VLAN 0.)