-post-v1.10.0
+Post-v2.1.0
---------------------
+ - Internal ports are no longer brought up by default, because it
+ should be an administrator task to bring up devices as they are
+ configured properly.
+ - ovs-vsctl now reports when ovs-vswitchd fails to create a new port or
+ bridge.
+ - The "ovsdbmonitor" graphical tool has been removed, because it was
+ poorly maintained and not widely used.
+ - New "check-ryu" Makefile target for running Ryu tests for OpenFlow
+ controllers against Open vSwitch. See INSTALL for details.
+ - Added IPFIX support for SCTP flows and templates for ICMPv4/v6 flows.
+ - Upon the receipt of a SIGHUP signal, ovs-vswitchd no longer reopens its
+ log file (it will terminate instead). Please use 'ovs-appctl vlog/reopen'
+ instead.
+ - Support for Linux kernels up to 3.13. From Kernel 3.12 onwards OVS uses
+ tunnel API for GRE and VXLAN.
+ - Added DPDK support.
+
+
+v2.1.0 - xx xxx xxxx
+---------------------
+ - Address prefix tracking support for flow tables. New columns
+ "prefixes" in OVS-DB table "Flow_Table" controls which packet
+ header fields are used for address prefix tracking. Prefix
+ tracking allows the classifier to skip rules with longer than
+ necessary prefixes, resulting in better wildcarding for datapath
+ flows. Default configuration is to not use any fields for prefix
+ tracking. However, if any flow tables contain both exact matches
+ and masked matches for IP address fields, OVS performance may be
+ increased by using this feature.
+ * As of now, the fields for which prefix lookup can be enabled
+ are: 'tun_id', 'tun_src', 'tun_dst', 'nw_src', 'nw_dst' (or
+ aliases 'ip_src' and 'ip_dst'), 'ipv6_src', and 'ipv6_dst'.
+ (Using this feature for 'tun_id' would only make sense if the
+ tunnel IDs have prefix structure similar to IP addresses.)
+ * There is a maximum number of fields that can be enabled for any
+ one flow table. Currently this limit is 3.
+ * Examples:
+ $ ovs-vsctl set Bridge br0 flow_tables:0=@N1 -- \
+ --id=@N1 create Flow_Table name=table0
+ $ ovs-vsctl set Bridge br0 flow_tables:1=@N1 -- \
+ --id=@N1 create Flow_Table name=table1
+ $ ovs-vsctl set Flow_Table table0 prefixes=ip_dst,ip_src
+ $ ovs-vsctl set Flow_Table table1 prefixes=[]
+ - TCP flags matching: OVS now supports matching of TCP flags. This
+ has an adverse performance impact when using OVS userspace 1.10
+ or older (no megaflows support) together with the new OVS kernel
+ module. It is recommended that the kernel and userspace modules
+ both are upgraded at the same time.
+ - The default OpenFlow and OVSDB ports will change to
+ IANA-assigned numbers in a future release. Consider updating
+ your installations to specify port numbers instead of using the
+ defaults.
+ - OpenFlow:
+ * The OpenFlow 1.1+ "Write-Actions" instruction is now supported.
+ * OVS limits the OpenFlow port numbers it assigns to port 32767 and
+ below, leaving port numbers above that range free for assignment
+ by the controller.
+ * ovs-vswitchd now honors changes to the "ofport_request" column
+ in the Interface table by changing the port's OpenFlow port
+ number.
+ - ovs-vswitchd.conf.db.5 man page will contain graphviz/dot
+ diagram only if graphviz package was installed at the build time.
+ - Support for Linux kernels up to 3.11
+ - ovs-dpctl:
+ The "show" command also displays mega flow mask stats.
+ - ovs-ofctl:
+ * New command "ofp-parse-pcap" to dump OpenFlow from PCAP files.
+ - ovs-controller has been renamed test-controller. It is no longer
+ packaged or installed by default, because too many users assumed
+ incorrectly that ovs-controller was a necessary or desirable part
+ of an Open vSwitch deployment.
+ - Added vlog option to export to a UDP syslog sink.
+ - ovsdb-client:
+ * The "monitor" command can now monitor all tables in a database,
+ instead of being limited to a single table.
+ - The flow-eviction-threshold has been replaced by the flow-limit which is a
+ hard limit on the number of flows in the datapath. It defaults to 200,000
+ flows. OVS automatically adjusts this number depending on network
+ conditions.
+ - Added IPv6 support for active and passive socket communications.
+
+
+v2.0.0 - 15 Oct 2013
+---------------------
+ - The ovs-vswitchd process is no longer single-threaded. Multiple
+ threads are now used to handle flow set up and asynchronous
+ logging.
+ - OpenFlow:
+ * Experimental support for OpenFlow 1.1 (in addition to 1.2 and
+ 1.3, which had experimental support in 1.10).
+ * Experimental protocol support for OpenFlow 1.1+ groups. This
+ does not yet include an implementation in the Open vSwitch
+ software switch.
+ * Experimental protocol support for OpenFlow 1.2+ meters. This
+ does not yet include an implementation in the Open vSwitch
+ software switch.
+ * New support for matching outer source and destination IP address
+ of tunneled packets, for tunnel ports configured with the newly
+ added "remote_ip=flow" and "local_ip=flow" options.
+ * Support for matching on metadata 'pkt_mark' for interacting with
+ other system components. On Linux this corresponds to the skb
+ mark.
+ * Support matching, rewriting SCTP ports
+ - The Interface table in the database has a new "ifindex" column to
+ report the interface's OS-assigned ifindex.
+ - New "check-oftest" Makefile target for running OFTest against Open
+ vSwitch. See README-OFTest for details.
+ - The flow eviction threshold has been moved to the Open_vSwitch table.
+ - Database names are now mandatory when specifying ovsdb-server options
+ through database paths (e.g. Private key option with the database name
+ should look like "--private-key=db:Open_vSwitch,SSL,private_key").
+ - Added ovs-dev.py, a utility script helpful for Open vSwitch developers.
+ - Support for Linux kernels up to 3.10
+ - ovs-ofctl:
+ * New "ofp-parse" for printing OpenFlow messages read from a file.
+ * New commands for OpenFlow 1.1+ groups.
+ - Added configurable flow caching support to IPFIX exporter.
+ - Dropped support for Linux pre-2.6.32.
+ - Log file timestamps and ovsdb commit timestamps are now reported
+ with millisecond resolution. (Previous versions only reported
+ whole seconds.)
+
+
+v1.11.0 - 28 Aug 2013
+---------------------
+ - Support for megaflows, which allows wildcarding in the kernel (and
+ any dpif implementation that supports wildcards). Depending on
+ the flow table and switch configuration, flow set up rates are
+ close to the Linux bridge.
+ - The "tutorial" directory contains a new tutorial for some advanced
+ Open vSwitch features.
- Stable bond mode has been removed.
- The autopath action has been removed.
- - CAPWAP tunneling support removed.
- New support for the data encapsulation format of the LISP tunnel
protocol (RFC 6830). An external control plane or manual flow
setup is required for EID-to-RLOC mapping.
1.1 and later are now implemented.
* New "stack" extension for use in actions, to push and pop from
NXM fields.
+ * The "load" and "set_field" actions can now modify the "in_port". (This
+ allows one to enable output to a flow's input port by setting the
+ in_port to some unused value, such as OFPP_NONE.)
+ - ovs-dpctl:
+ * New debugging commands "add-flow", "mod-flow", "del-flow".
+ * "dump-flows" now has a -m option to increase output verbosity.
+ - In dpif-based bridges, cache action translations, which can improve
+ flow set up performance by 80% with a complicated flow table.
+ - New syslog format, prefixed with "ovs|", to be easier to filter.
+ - RHEL: Removes the default firewall rule that allowed GRE traffic to
+ pass through. Any users that relied on this automatic firewall hole
+ will have to manually configure it. The ovs-ctl(8) manpage documents
+ the "enable-protocol" command that can be used as an alternative.
+ - New CFM demand mode which uses data traffic to indicate interface
+ liveness.
-
-v1.10.0 - xx xxx xxxx
+v1.10.0 - 01 May 2013
---------------------
- Bridge compatibility support has been removed. Any uses that
rely on ovs-brcompatd will have to stick with Open vSwitch 1.9.x
separately on a per-port basis, so it should no longer be
possible for a large number of new flows arriving on one port to
prevent new flows from being processed on other ports.
- - Many "ovs-vsctl" database commands now accept an --if-exists option.
- Please refer to the ovs-vsctl manpage for details.
+ - ovs-vsctl:
+ * Previously ovs-vsctl would retry connecting to the database forever,
+ causing it to hang if ovsdb-server was not running. Now, ovs-vsctl
+ only tries once by default (use --retry to try forever). This change
+ means that you may want to remove uses of --timeout to avoid hangs
+ in ovs-vsctl calls.
+ * Many "ovs-vsctl" database commands now accept an --if-exists option.
+ Please refer to the ovs-vsctl manpage for details.
- OpenFlow:
- Experimental support for newer versions of OpenFlow. See
the "What versions of OpenFlow does Open vSwitch support?"
value of other-config:dp-desc in the Bridge table.
- It is possible to request the OpenFlow port number with the
"ofport_request" column in the Interface table.
+ - The NXM flow_removed message now reports the OpenFlow table ID
+ from which the flow was removed.
- Tunneling:
- New support for the VXLAN tunnel protocol (see the IETF draft here:
http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03).
- Inheritance of the Don't Fragment bit in IP tunnels (df_inherit)
is no longer supported.
- Path MTU discovery is no longer supported.
+ - CAPWAP tunneling support removed.
+ - Tunnels with multicast destination ports are no longer supported.
- ovs-dpctl:
- The "dump-flows" and "del-flows" no longer require an argument
if only one datapath exists.
retire that meaning of ANY in favor of the OpenFlow 1.1 meaning.
- Patch ports no longer require kernel support, so they now work
with FreeBSD and the kernel module built into Linux 3.3 and later.
+ - New "sample" action.
-v1.9.0 - xx xxx xxxx
---------------------
+v1.9.0 - 26 Feb 2013
+------------------------
- Datapath:
- Support for ipv6 set action.
- SKB mark matching and setting.
data in ARP packets.
-v1.8.0 - xx xxx xxxx
+v1.8.0 - 26 Feb 2013
------------------------
+ *** Internal only release ***
- New FAQ. Please send updates and additions!
- Authors of controllers, please read the new section titled "Action
Reproduction" in DESIGN, which describes an Open vSwitch change in
git://git.onelab.eu / sliver-openvswitch.git / blobdiff