From 1a274bfee73bc390767dc2816d6b0e4c6b2c7407 Mon Sep 17 00:00:00 2001 From: Ben Pfaff Date: Wed, 20 Nov 2013 09:07:13 -0800 Subject: [PATCH] FAQ: More explicitly draw attention to explanation of different flow types. Signed-off-by: Ben Pfaff Acked-by: Justin Pettit --- FAQ | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/FAQ b/FAQ index ffe63cc07..2912ae335 100644 --- a/FAQ +++ b/FAQ @@ -418,7 +418,11 @@ A: First, why do you want to do this? Two connected bridges are not ports will not work with the userspace datapath, only with the kernel module. -Q: Why are there so many different ways to dump flows? + +Implementation Details +---------------------- + +Q: I hear OVS has a couple of kinds of flows. Can you tell me about them? A: Open vSwitch uses different kinds of flows for different purposes: @@ -446,7 +450,15 @@ A: Open vSwitch uses different kinds of flows for different purposes: current version of Open vSwitch, hardware switch implementations do not necessarily use this architecture. - Each of the commands for dumping flows has a different purpose: + Users and controllers directly control only the OpenFlow flow + table. Open vSwitch manages the datapath flow table itself, so + users should not normally be concerned with it. + +Q: Why are there so many different ways to dump flows? + +A: Open vSwitch has two kinds of flows (see the previous question), so + it has commands with different purposes for dumping each kind of + flow: - "ovs-ofctl dump-flows
" dumps OpenFlow flows, excluding hidden flows. This is the most commonly useful form of flow -- 2.39.5