X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=vswitchd%2Fvswitch.xml;h=c9a6e5786e846140edffa68ab3a54fe18848873f;hb=99707a7afeea9877334825a18b027662bbabc270;hp=7d61aac7103e99eb27c677dfcdea4f6b8ee15902;hpb=d9af660c057e5f272e4ea94659554ade733b3dad;p=openvswitch
diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
index 7d61aac7..c9a6e578 100644
--- a/vswitchd/vswitch.xml
+++ b/vswitchd/vswitch.xml
@@ -1,3 +1,4 @@
+
A database with this schema holds the configuration for one Open
vSwitch daemon. The root of the configuration for the daemon is
@@ -74,21 +75,133 @@
- Key-value pairs that report statistics about a running Open_vSwitch
- daemon. The current implementation updates these counters
- periodically. In the future, we plan to, instead, update them only
- when they are queried (e.g. using an OVSDB
- The currently defined key-value pairs are listed below. Some Open
- vSwitch implementations may not support some statistics, in which
- case those key-value pairs are omitted.
+ Number of CPU processors, threads, or cores currently online and
+ available to the operating system on which Open vSwitch is
+ running, as an integer. This may be less than the number
+ installed, if some are not online or if they are not available to
+ the operating system.
+
+ Open vSwitch userspace processes are not multithreaded, but the
+ Linux kernel-based datapath is.
+
+ A comma-separated list of three floating-point numbers,
+ representing the system load average over the last 1, 5, and 15
+ minutes, respectively.
+
+ A comma-separated list of integers, each of which represents a
+ quantity of memory in kilobytes that describes the operating
+ system on which Open vSwitch is running. In respective order,
+ these values are:
+
+ On Linux, all five values can be determined and are included. On
+ other operating systems, only the first two values can be
+ determined, so the list will only have two values.
+
+ One such key-value pair will exist for each running Open vSwitch
+ daemon process, with name replaced by the daemon's
+ name (e.g.
+ The interpretation of some of these values depends on whether the
+ process was started with the . If it
+ was not, then the crash count will always be 0 and the two
+ durations will always be the same. If
+ was given, then the crash count may be positive; if it is, the
+ latter duration is the amount of time since the most recent crash
+ and restart.
+
+ There will be one key-value pair for each file in Open vSwitch's
+ ``run directory'' (usually
+ Currently Open vSwitch is only able to obtain all of the above
+ detail on Linux systems. On other systems, the same key-value
+ pairs will be present but the values will always be the empty
+ string.
+
+ A space-separated list of information on local, writable file
+ systems. Each item in the list describes one file system and
+ consists in turn of a comma-separated list of the following:
+
+ This key-value pair is omitted if there are no local, writable
+ file systems or if Open vSwitch cannot obtain the needed
+ information.
+ select
- operation) and perhaps at other times, but not on any regular
- periodic basis.
-
@@ -216,7 +329,10 @@
load-average
cpu
load_average
memory
+
+
+ process_
nameprocess_ovs-vswitchd
). The value is a
+ comma-separated list of integers. The integers represent the
+ following, with memory measured in kilobytes and durations in
+ milliseconds:
+
+
+
+ /var/run/openvswitch
)
+ whose name ends in .pid
, whose contents are a
+ process ID, and which is locked by a running process. The
+ name is taken from the pidfile's name.
+ file_systems
+
+
+ /
or /var/log
.
+ Any spaces or commas in the mount point are replaced by
+ underscores.datapath-id
disable-in-band
true
, disable in-band control on
+ the bridge regardless of controller and manager settings.hwaddr
fake-bridge-
,
- e.g. fake-bridge-network-uuids
.
+ e.g. fake-bridge-xs-network-uuids
.
false
to disable.
+ header_cache
false
to disable. If IPsec is enabled through the
+ parameters, header caching will be
+ automatically disabled.capwap
false
to disable.header_cache
false
to disable.patch
+ These settings control ingress policing for packets received on this + interface. On a physical interface, this limits the rate at which + traffic is allowed into the system from the outside; on a virtual + interface (one connected to a virtual machine), this limits the rate at + which the VM is able to transmit. +
++ Policing is a simple form of quality-of-service that simply drops + packets received in excess of the configured rate. Due to its + simplicity, policing is usually less accurate and less effective than + egress QoS (which is configured using the and tables). +
++ Policing is currently implemented only on Linux. The Linux + implementation uses a simple ``token bucket'' approach: +
++ Policing interacts badly with some network protocols, and especially + with fragmented IP packets. Suppose that there is enough network + activity to keep the bucket nearly empty all the time. Then this token + bucket algorithm will forward a single packet every so often, with the + period depending on packet size and on the configured rate. All of the + fragments of an IP packets are normally transmitted back-to-back, as a + group. In such a situation, therefore, only one of these fragments + will be forwarded and the rest will be dropped. IP does not provide + any way for the intended recipient to ask for only the remaining + fragments. In such a case there are two likely possibilities for what + will happen next: either all of the fragments will eventually be + retransmitted (as TCP will do), in which case the same problem will + recur, or the sender will not realize that its packet has been dropped + and data will simply be lost (as some UDP-based protocols will do). + Either way, it is possible that no forward progress will ever occur. +
+
+ Maximum rate for data received on this interface, in kbps. Data
+ received faster than this rate is dropped. Set to 0
+ (the default) to disable policing.
+
Maximum burst size for data received on this interface, in kb. The
default burst size if set to 0
is 1000 kb. This value
has no effect if
is 0
.
The burst size should be at least the size of the interface's - MTU.
-Maximum rate for data received on this interface, in kbps. Data
- received faster than this rate is dropped. Set to 0
to
- disable policing.
The meaning of ``ingress'' is from Open vSwitch's perspective. If - configured on a physical interface, then it limits the rate at which - traffic is allowed into the system from the outside. If configured - on a virtual interface that is connected to a virtual machine, then - it limits the rate at which the guest is able to transmit.
++ Specifying a larger burst size lets the algorithm be more forgiving, + which is important for protocols like TCP that react severely to + dropped packets. The burst size should be at least the size of the + interface's MTU. Specifying a value that is numerically at least as + large as 10% of helps TCP come + closer to achieving the full rate. +
attached-mac
MAC
+ field in the VIF record for this interface.iface-id
xs-vif-uuid
.xs-vm-uuid
xs-vif-mac
MAC
- field in the VIF record for this interface.openvswitch-ipsec
package for
+ Debian. The currently defined key-value pairs are:
+ ipsec_local_ip
gre
and the
+ ipsec_psk
key must
+ be set. The in_key
, out_key
, and
+ key
must not be
+ set.ipsec_psk
ipsec_local_ip
key must also be set.linux-htb
http://linux.die.net/man/8/tc-htb
) and the HTB manual
+ (http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm
)
+ for information on how this classifier works and how to configure it.
+ min-rate
are:
min-rate
When multiple controllers are configured for a single bridge, the - values must be unique. Duplicate - values yield unspecified results.
+When multiple controllers are configured for a single bridge, the + values must be unique. Duplicate + values yield unspecified results.
If it is specified, this setting must be one of the following - strings that describes how Open vSwitch contacts this OpenFlow - controller over the network:
- -in-band
out-of-band
ovs-vswitchd
is started.
- If it is specified, this setting must be one of the following + strings that describes how Open vSwitch contacts this OpenFlow + controller over the network:
+ +in-band
out-of-band
ovs-vswitchd
is started.
+ If not specified, the default is implementation-specific. If
is These values are considered only when
- is discover
, the connection mode
@@ -1166,7 +1388,7 @@
discover
.discover
.
These values are considered only in in-band control mode (see
- ) and only when
- is not discover
. (For controller discovery, the network
- configuration obtained via DHCP is used instead.)
discover
. (For controller discovery, the network
+ configuration obtained via DHCP is used instead.)
When multiple controllers are configured on a single bridge, there - should be only one set of unique values in these columns. If different - values are set for these columns in different controllers, the effect - is unspecified.
+ should be only one set of unique values in these columns. If different + values are set for these columns in different controllers, the effect + is unspecified.