From 004a624912175a696dc6dd447f267d01cf07ce1f Mon Sep 17 00:00:00 2001 From: Jesse Gross Date: Fri, 3 Jan 2014 09:31:38 -0800 Subject: [PATCH] FAQ: Add entry on GRE module conflicts. Signed-off-by: Jesse Gross Acked-by: Justin Pettit --- FAQ | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/FAQ b/FAQ index 1edcd94ab..75d9e6b76 100644 --- 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) ------------------------ -- 2.43.0