Reported-by: Ben Pfaff <[email protected]>
Signed-off-by: Jesse Gross <[email protected]>
---
FAQ | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/FAQ b/FAQ
index cac9fcb..79d905d 100644
--- a/FAQ
+++ b/FAQ
@@ -190,6 +190,27 @@ A: The kernel module in upstream Linux does not include
support for
Linux release or using the kernel module paired with the userspace
distribution.
+Q: Why do tunnels not work when using a kernel module other than the
+ one packaged with Open vSwitch?
+
+A: Support for tunnels was added to the upstream Linux kernel module
+ after the rest of Open vSwitch. As a result, some kernels may contain
+ support for Open vSwitch but not tunnels. The minimum kernel version
+ that supports each tunnel protocol is:
+
+ Protocol Linux Kernel
+ -------- ------------
+ GRE 3.11
+ VXLAN 3.12
+ LISP <not upstream>
+
+ If you are using a version of the kernel that is older than the one
+ listed above, it is still possible to use that tunnel protocol. However,
+ you must compile and install the kernel module included with the Open
+ vSwitch distribution rather than the one on your machine. If problems
+ persist after doing this, check to make sure that the module that is
+ loaded is the one you expect.
+
Q: What features are not available when using the userspace datapath?
A: Tunnel virtual ports are not supported, as described in the
--
1.9.1
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