Implement IPFIX export

[sliver-openvswitch.git] / FAQ

diff --git a/FAQ b/FAQ
index 7488112..e7249cf 100644 (file)
--- a/FAQ
+++ b/FAQ
@@ -9,12 +9,13 @@ General
 Q: What is Open vSwitch?
 
 A: Open vSwitch is a production quality open source software switch
-   designed to be used as a vswitch in virtualized server environments.  A
-   vswitch forwards traffic between different VMs on the same physical host
-   and also forwards traffic between VMs and the physical network.  Open
-   vSwitch supports standard management interfaces (e.g. sFlow, NetFlow,
-   RSPAN, CLI), and is open to programmatic extension and control using
-   OpenFlow and the OVSDB management protocol.
+   designed to be used as a vswitch in virtualized server
+   environments.  A vswitch forwards traffic between different VMs on
+   the same physical host and also forwards traffic between VMs and
+   the physical network.  Open vSwitch supports standard management
+   interfaces (e.g. sFlow, NetFlow, IPFIX, RSPAN, CLI), and is open to
+   programmatic extension and control using OpenFlow and the OVSDB
+   management protocol.
 
    Open vSwitch as designed to be compatible with modern switching
    chipsets.  This means that it can be ported to existing high-fanout
@@ -153,6 +154,11 @@ A: The following table lists the Linux kernel versions against which the
    It should build against almost any kernel, certainly against 2.6.18
    and later.
 
+Q: What Linux kernel versions does IPFIX flow monitoring work with?
+
+A: IPFIX flow monitoring requires the Linux kernel module from Open
+   vSwitch version 1.10.90 or later.
+
 Q: Should userspace or kernel be upgraded first to minimize downtime?
 
    In general, the Open vSwitch userspace should be used with the