-post-v1.11.0
+Post-v2.2.0
---------------------
+ - OpenFlow 1.1, 1.2, and 1.3 are now enabled by default in
+ ovs-vswitchd.
+ - Linux kernel datapath now has an exact match cache optimizing the
+ flow matching process.
+ - Datapath flows now have partially wildcarded tranport port field
+ matches. This reduces userspace upcalls, but increases the
+ number of different masks in the datapath. The kernel datapath
+ exact match cache removes the overhead of matching the incoming
+ packets with the larger number of masks, but when paired with an
+ older kernel module, some workloads may perform worse with the
+ new userspace.
+
+v2.2.0 - xx xxx xxx
+---------------------
+ - 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 3.14. From Kernel 3.12 onwards OVS uses
+ tunnel API for GRE and VXLAN.
+ - Added DPDK support.
+ - Added support for custom vlog patterns in Python
+
+
+v2.1.0 - 19 Mar 2014
+---------------------
+ - 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 - xx xxx xxxx
+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.
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 - 01 May 2013
---------------------
git://git.onelab.eu / sliver-openvswitch.git / blobdiff