Describe dummy test model. Work on OpenFlow intro.

[openvswitch] / FAQ

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index b14bfa4535cef0f670cd4a0ac83b855904018d49..75eab993a5c58853bb3d0654cb4b641e01c359a6 100644 (file)
--- a/FAQ
+++ b/FAQ
@@ -168,6 +168,21 @@ A: Tunnel and patch virtual ports are not supported, as described in the
    may not be transmitted.
 
 
+Terminology
+-----------
+
+Q: I thought Open vSwitch was a virtual Ethernet switch, but the
+   documentation keeps talking about bridges.  What's a bridge?
+
+A: In networking, the terms "bridge" and "switch" are synonyms.  Open
+   vSwitch implements an Ethernet switch, which means that it is also
+   an Ethernet bridge.
+
+Q: What's a VLAN?
+
+A: See the "VLAN" section below.
+
+
 Basic Configuration
 -------------------
 
@@ -414,6 +429,14 @@ Q: Is there any documentation on the database tables and fields?
 
 A: Yes.  ovs-vswitchd.conf.db(5) is a comprehensive reference.
 
+Q: When I run ovs-dpctl I no longer see the bridges I created.  Instead,
+   I only see a datapath called "ovs-system".  How can I see datapath
+   information about a particular bridge?
+
+A: In version 1.9.0, OVS switched to using a single datapath that is
+   shared by all bridges of that type.  The "ovs-appctl dpif/*"
+   commands provide similar functionality that is scoped by the bridge.
+
 
 VLANs
 -----