Merge branch 'master' of ssh://git.onelab.eu/git/sliver-openvswitch

[sliver-openvswitch.git] / FAQ

diff --git a/FAQ b/FAQ
index 3df1c54..75d9e6b 100644 (file)
--- a/FAQ
+++ b/FAQ
@@ -641,6 +641,17 @@ 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.
 
+Q: I created a GRE port using ovs-vsctl so why can't I send traffic or
+   see the port in the datapath?
+
+A: On Linux kernels before 3.11, the OVS GRE module and Linux GRE module
+   cannot be loaded at the same time. It is likely that on your system the
+   Linux GRE module is already loaded and blocking OVS (to confirm, check
+   dmesg for errors regarding GRE registration). To fix this, unload all
+   GRE modules that appear in lsmod as well as the OVS kernel module. You
+   can then reload the OVS module following the directions in INSTALL,
+   which will ensure that dependencies are satisfied.
+
 
 Quality of Service (QoS)
 ------------------------
@@ -1082,7 +1093,7 @@ A: Open vSwitch 1.9 and earlier support only OpenFlow 1.0 (plus
 
        ovs-vsctl set bridge br0 protocols=OpenFlow10,OpenFlow12,OpenFlow13
 
-   Open vSwitch version 1.12 and later will have experimental support
+   Open vSwitch version 2.0 and later will have experimental support
    for OpenFlow 1.1, 1.2, and 1.3.  On these versions of Open vSwitch,
    the following command enables OpenFlow 1.0, 1.1, 1.2, and 1.3 on
    bridge br0: