OpenFlow 1.1+ support in Open vSwitch
=====================================
-Open vSwitch support for OpenFlow 1.1, 1.2, and 1.3 is a work in
+Open vSwitch support for OpenFlow 1.1 and beyond is a work in
progress. This file describes the work still to be done.
The Plan
The list of remaining work items for OpenFlow 1.1 is below. It is
probably incomplete.
- * OFPT_TABLE_MOD message. This is new in OF1.1, so we need to
- implement it. It should be implemented so that the default OVS
- behavior does not change.
- [required for OF1.1 and OF1.2]
-
* MPLS. Simon Horman maintains a patch series that adds this
feature. This is partially merged.
[optional for OF1.1+]
Currently we always report OFPBRC_MULTIPART_BUFFER_OVERFLOW.
[optional for OF1.3+]
- * Add OFPMP_TABLE_FEATURES statistics.
- [optional for OF1.3+]
-
- * More flexible table miss support.
- This requires the following.
- - Change the default table-miss action (in the absense of table-miss
- entry) from packet_in to drop for OF1.3+. Decide what to do if
- a switch is configured to support multiple OF versions.
- [required for OF1.3+]
+ * Add OFPMP_TABLE_FEATURES statistics. Alexander Wu has posted a
+ patch series. [optional for OF1.3+]
* IPv6 extension header handling support. Fully implementing this
requires kernel support. This likely will take some careful and
some kind of "hardware" support, if we judged it useful enough.)
[optional for OF1.3+]
- * MPLS BoS matching.
- Part of MPLS patchset by Simon Horman.
- [optional for OF1.3+]
-
* Provider Backbone Bridge tagging. I don't plan to implement
this (but we'd accept an implementation).
[optional for OF1.3+]
- * Rework tag order.
- Part of MPLS patchset by Simon Horman.
- [required for v1.3+]
-
* On-demand flow counters. I think this might be a real
optimization in some cases for the software switch.
[optional for OF1.3+]