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If one or more datapaths are specified, information on only those
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105
datapaths are displayed. Otherwise, \fBovs\-dpctl\fR displays information
106
106
about all configured datapaths.
107
.SS "DEBUGGING COMMANDS"
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The following commands are primarily useful for debugging Open
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vSwitch. The flow table entries (both matches and actions) that they
110
work with are not OpenFlow flow entries. Instead, they are different
111
and considerably simpler flows maintained by the Open vSwitch kernel
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module. Use \fBovs\-ofctl\fR(8), instead, to work with OpenFlow flow
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The \fIdp\fR argument to each of these commands is optional when
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exactly one datapath exists, in which case that datapath is the
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default. When multiple datapaths exist, then a datapath name is
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121
.IP "\fBdump\-flows\fR [\fIdp\fR]"
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122
Prints to the console all flow entries in datapath \fIdp\fR's
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flow table. If \fIdp\fR is not specified and exactly one datapath
111
exists, the flows for that datapath will be printed.
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This command is primarily useful for debugging Open vSwitch. The flow
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table entries that it displays are not
115
OpenFlow flow entries. Instead, they are different and considerably
116
simpler flows maintained by the Open vSwitch kernel module. If you wish
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to see the OpenFlow flow entries, use \fBovs\-ofctl dump\-flows\fR.
125
.IP "\fBadd\-flow\fR [\fIdp\fR] \fIflow actions\fR"
126
.IQ "[\fB\-\-clear\fR] [\fB\-\-may-create\fR] [\fB\-s\fR | \fB\-\-statistics\fR] \fBmod\-flow\fR [\fIdp\fR] \fIflow actions\fR"
127
Adds or modifies a flow in \fIdp\fR's flow table that, when a packet
128
matching \fIflow\fR arrives, causes \fIactions\fR to be executed.
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The \fBadd\-flow\fR command succeeds only if \fIflow\fR does not
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already exist in \fIdp\fR. Contrariwise, \fBmod\-flow\fR without
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\fB\-\-may\-create\fR only modifies the actions for an existing flow.
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With \fB\-\-may\-create\fR, \fBmod\-flow\fR will add a new flow or
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modify an existing one.
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If \fB\-s\fR or \fB\-\-statistics\fR is specified, then
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\fBmod\-flows\fR prints the modified flow's statistics. A flow's
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statistics are the number of packets and bytes that have passed
139
through the flow, the elapsed time since the flow last processed a
140
packet (if ever), and (for TCP flows) the union of the TCP flags
141
processed through the flow.
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With \fB\-\-clear\fR, \fBmod\-flows\fR zeros out the flow's
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statistics. The statistics printed if \fB\-s\fR or
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\fB\-\-statistics\fR is also specified are those from just before
146
clearing the statistics.
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.IP "[\fB\-s\fR | \fB\-\-statistics\fR] \fBdel\-flow\fR [\fIdp\fR] \fIflow\fR"
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Deletes the flow from \fIdp\fR's flow table that matches \fIflow\fR.
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If \fB\-s\fR or \fB\-\-statistics\fR is specified, then
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\fBmod\-flows\fR prints the deleted flow's statistics.
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153
.IP "\fBdel\-flows\fR [\fIdp\fR]"
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Deletes all flow entries from datapath \fIdp\fR's flow table. If
121
\fIdp\fR is not specified and exactly one datapath exists, the flows for
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that datapath will be deleted.
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This command is primarily useful for debugging Open vSwitch. As
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discussed in \fBdump\-flows\fR, these entries are
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not OpenFlow flow entries. By deleting them, the process that set them
127
up may be confused about their disappearance.
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Deletes all flow entries from datapath \fIdp\fR's flow table.
added
removed
utilities/ovs-dpctl.8.in
