.SS "OpenFlow Controller Connectivity"
.
\fBovs\-vswitchd\fR can perform all configured bridging and switching
-locally, or it can be configured to connect a given bridge to one or
-more external OpenFlow controllers, such as NOX.
+locally, or it can be configured to communicate with one or more
+external OpenFlow controllers. The switch is typically configured to
+connect to a primary controller that takes charge of the bridge's flow
+table to implement a network policy. In addition, the switch can be
+configured to listen to connections from service controllers. Service
+controllers are typically used for occasional support and maintenance,
+e.g. with \fBovs\-ofctl\fR.
.
.IP "\fBget\-controller\fR \fIbridge\fR"
Prints the configured controller target.
.
.RS
.so lib/vconn-active.man
+.so lib/vconn-passive.man
.RE
.
.ST "Controller Failure Settings"
is set, \fBovs\-vswitchd\fR will take over
responsibility for setting up
flows when no message has been received from the controller for three
-times the inactivity probe interval (xxx needs to be exposed). In this mode,
+times the inactivity probe interval. In this mode,
\fBovs\-vswitchd\fR causes the datapath to act like an ordinary
MAC-learning switch. \fBovs\-vswitchd\fR will continue to retry connecting
to the controller in the background and, when the connection succeeds,
.PP
Monitor connectivity to a remote maintenance point on eth0.
.IP
-.B "ovs\-vsctl set Interface eth0 cfm_mpid=1 cfm_remote_mpid=2"
+.B "ovs\-vsctl set Interface eth0 cfm_mpid=1"
.PP
Deconfigure connectivity monitoring from above:
.IP
-.B "ovs\-vsctl clear Interface eth0 cfm_mpid cfm_remote_mpid"
+.B "ovs\-vsctl clear Interface eth0 cfm_mpid"
.SS "NetFlow"
.PP
Configure bridge \fBbr0\fR to send NetFlow records to UDP port 5566 on
.IP
.B "\-\- set Bridge br0 sflow=@s"
.PP
-Deconfigure sFlow from br0, which also destroys the sFlow record
+Deconfigure sFlow from \fBbr0\fR, which also destroys the sFlow record
(since it is now unreferenced):
.IP
.B "ovs\-vsctl \-\- clear Bridge br0 sflow"
+.SS "802.1D Spanning Tree Protocol (STP)"
+.PP
+Configure bridge \fBbr0\fR to participate in an 802.1D spanning tree:
+.IP
+.B "ovs\-vsctl set Bridge br0 stp_enable=true"
+.PP
+Set the bridge priority of \fBbr0\fR to 0x7800:
+.IP
+.B "ovs\-vsctl set Bridge br0 other_config:stp-priority=0x7800"
+.PP
+Set the path cost of port \fBeth0\fR to 10:
+.IP
+.B "ovs\-vsctl set Port eth0 other_config:stp-path-cost=10"
+.PP
+Deconfigure STP from above:
+.IP
+.B "ovs\-vsctl clear Bridge br0 stp_enable"
+.PP
.SH "EXIT STATUS"
.IP "0"
Successful program execution.