X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=utilities%2Fovs-openflowd.8.in;h=176459ca452b48bd07bc9e15522f28fe32063f81;hb=8321fb9c570bd25bb8925e7b5116ab90662113b5;hp=4c10d8d65aab8c78c437095c9cb88a6f8afdce93;hpb=812560d7cea7f618f8fd7110063e8dd039547006;p=openvswitch

diff --git a/utilities/ovs-openflowd.8.in b/utilities/ovs-openflowd.8.in
index 4c10d8d6..176459ca 100644
--- a/utilities/ovs-openflowd.8.in
+++ b/utilities/ovs-openflowd.8.in
@@ -16,6 +16,9 @@ The \fBovs\-openflowd\fR program implements an OpenFlow switch using a
 flow-based datapath.  \fBovs\-openflowd\fR connects to one or more
 OpenFlow controllers over TCP or SSL.
 .PP
+For a more powerful alternative to \fBovs\-openflowd\fR, see
+\fBovs\-vswitchd\fR(8).  Do not run both daemons at the same time.
+.PP
 The mandatory \fIdatapath\fR argument argument specifies the local datapath
 to relay.  It takes one of the following forms:
 .
@@ -170,7 +173,8 @@ the local port network device, and start the DHCP client afterward.
 .SS "OpenFlow Options"
 .TP
 \fB\-\-datapath\-id=\fIdpid\fR
-Sets \fIdpid\fR, which must consist of exactly 16 hexadecimal digits,
+Sets \fIdpid\fR, which must consist of exactly 16 hexadecimal digits
+and may not be all-zero,
 as the datapath ID that the switch will use to identify itself to
 OpenFlow controllers.
 .IP