3 - The MAC learning feature now includes per-port fairness to mitigate
5 - New support for a "conjunctive match" OpenFlow extension, which
6 allows constructing OpenFlow matches of the form "field1 in
7 {a,b,c...} AND field2 in {d,e,f...}" and generalizations. For details,
8 see documentation for the "conjunction" action in ovs-ofctl(8).
9 - Add bash command-line completion support for ovs-appctl/ovs-dpctl/
10 ovs-ofctl/ovsdb-tool commands. Please check
11 utilities/ovs-command-compgen.INSTALL.md for how to use.
12 - The "learn" action supports a new flag "delete_learned" that causes
13 the learned flows to be deleted when the flow with the "learn" action
15 - Basic support for the Geneve tunneling protocol. It is not yet
16 possible to generate or match options. This is planned for a future
17 release. The protocol is documented at
18 http://tools.ietf.org/html/draft-gross-geneve-00
19 - The OVS database now reports controller rate limiting statistics.
20 - sflow now exports information about LACP-based bonds, port names, and
21 OpenFlow port numbers, as well as datapath performance counters.
22 - ovs-dpctl functionality is now available for datapaths integrated
23 into ovs-vswitchd, via ovs-appctl. Some existing ovs-appctl
24 commands are now redundant and will be removed in a future
25 release. See ovs-vswitchd(8) for details.
27 * IPv6 flow label and neighbor discovery fields are now modifiable.
28 * OpenFlow 1.5 (draft) extended registers are now supported.
29 * The OpenFlow 1.5 (draft) actset_output field is now supported.
30 * OpenFlow 1.5 (draft) Copy-Field action is now supported.
31 * OpenFlow 1.5 (draft) masked Set-Field action is now supported.
32 * OpenFlow 1.3+ table features requests are now supported (read-only).
33 * Nicira extension "move" actions may now be included in action sets.
34 * "resubmit" actions may now be included in action sets. The resubmit
35 is executed last, and only if the action set has no "output" or "group"
37 * OpenFlow 1.4+ flow "importance" is now maintained in the flow table.
38 - ovs-pki: Changed message digest algorithm from MD5 to SHA-1 because
39 MD5 is no longer secure and some operating systems have started to disable
41 - ovsdb-server: New OVSDB protocol extension allows inequality tests on
42 "optional scalar" columns. See ovsdb-server(1) for details.
43 - ovs-vsctl now permits immutable columns in a new row to be modified in
44 the same transaction that creates the row.
45 - test-controller has been renamed ovs-testcontroller at request of users
46 who find it useful for testing basic OpenFlow setups. It is still not
47 a necessary or desirable part of most Open vSwitch deployments.
48 - Support for travis-ci.org based continuous integration builds has been
49 added. Build failures are reported to build@openvswitch.org. See INSTALL.md
50 file for additional details.
51 - Support for the Rapid Spanning Tree Protocol (IEEE 802.1D-2004).
52 The implementation has been tested successfully against the Ixia Automated
53 Network Validation Library (ANVL).
54 - Stats are no longer updated on fake bond interface.
55 - Keep active bond slave selection across OVS restart.
56 - A simple wrapper script, 'ovs-docker', to integrate OVS with Docker
57 containers. If and when there is a native integration of Open vSwitch
58 with Docker, the wrapper script will be retired.
59 - Added support for DPDK Tunneling. VXLAN and GRE are supported protocols.
60 This is generic tunneling mechanism for userspace datapath.
61 - Support for multicast snooping (IGMPv1 and IGMPv2)
62 - Support for Linux kernels up to 3.19.x
63 - The documentation now use the term 'destination' to mean one of syslog,
64 console or file for vlog logging instead of the previously used term
70 - OpenFlow 1.1, 1.2, and 1.3 are now enabled by default in
72 - Linux kernel datapath now has an exact match cache optimizing the
73 flow matching process.
74 - Datapath flows now have partially wildcarded tranport port field
75 matches. This reduces userspace upcalls, but increases the
76 number of different masks in the datapath. The kernel datapath
77 exact match cache removes the overhead of matching the incoming
78 packets with the larger number of masks, but when paired with an
79 older kernel module, some workloads may perform worse with the
81 - Compatibility with autoconf 2.63 (previously >=2.64)
83 v2.2.0 - Internal Release
85 - Internal ports are no longer brought up by default, because it
86 should be an administrator task to bring up devices as they are
88 - ovs-vsctl now reports when ovs-vswitchd fails to create a new port or
90 - Port creation and configuration errors are now stored in a new error
91 column of the Interface table and included in 'ovs-vsctl show'.
92 - The "ovsdbmonitor" graphical tool has been removed, because it was
93 poorly maintained and not widely used.
94 - New "check-ryu" Makefile target for running Ryu tests for OpenFlow
95 controllers against Open vSwitch. See INSTALL.md for details.
96 - Added IPFIX support for SCTP flows and templates for ICMPv4/v6 flows.
97 - Upon the receipt of a SIGHUP signal, ovs-vswitchd no longer reopens its
98 log file (it will terminate instead). Please use 'ovs-appctl vlog/reopen'
100 - Support for Linux kernels up to 3.14. From Kernel 3.12 onwards OVS uses
101 tunnel API for GRE and VXLAN.
102 - Added DPDK support.
103 - Added support for custom vlog patterns in Python
107 ---------------------
108 - Address prefix tracking support for flow tables. New columns
109 "prefixes" in OVS-DB table "Flow_Table" controls which packet
110 header fields are used for address prefix tracking. Prefix
111 tracking allows the classifier to skip rules with longer than
112 necessary prefixes, resulting in better wildcarding for datapath
113 flows. Default configuration is to not use any fields for prefix
114 tracking. However, if any flow tables contain both exact matches
115 and masked matches for IP address fields, OVS performance may be
116 increased by using this feature.
117 * As of now, the fields for which prefix lookup can be enabled
118 are: 'tun_id', 'tun_src', 'tun_dst', 'nw_src', 'nw_dst' (or
119 aliases 'ip_src' and 'ip_dst'), 'ipv6_src', and 'ipv6_dst'.
120 (Using this feature for 'tun_id' would only make sense if the
121 tunnel IDs have prefix structure similar to IP addresses.)
122 * There is a maximum number of fields that can be enabled for any
123 one flow table. Currently this limit is 3.
125 $ ovs-vsctl set Bridge br0 flow_tables:0=@N1 -- \
126 --id=@N1 create Flow_Table name=table0
127 $ ovs-vsctl set Bridge br0 flow_tables:1=@N1 -- \
128 --id=@N1 create Flow_Table name=table1
129 $ ovs-vsctl set Flow_Table table0 prefixes=ip_dst,ip_src
130 $ ovs-vsctl set Flow_Table table1 prefixes=[]
131 - TCP flags matching: OVS now supports matching of TCP flags. This
132 has an adverse performance impact when using OVS userspace 1.10
133 or older (no megaflows support) together with the new OVS kernel
134 module. It is recommended that the kernel and userspace modules
135 both are upgraded at the same time.
136 - The default OpenFlow and OVSDB ports will change to
137 IANA-assigned numbers in a future release. Consider updating
138 your installations to specify port numbers instead of using the
141 * The OpenFlow 1.1+ "Write-Actions" instruction is now supported.
142 * OVS limits the OpenFlow port numbers it assigns to port 32767 and
143 below, leaving port numbers above that range free for assignment
145 * ovs-vswitchd now honors changes to the "ofport_request" column
146 in the Interface table by changing the port's OpenFlow port
148 * The Open vSwitch software switch now supports OpenFlow groups.
149 - ovs-vswitchd.conf.db.5 man page will contain graphviz/dot
150 diagram only if graphviz package was installed at the build time.
151 - Support for Linux kernels up to 3.11
153 The "show" command also displays mega flow mask stats.
155 * New command "ofp-parse-pcap" to dump OpenFlow from PCAP files.
156 - ovs-controller has been renamed test-controller. It is no longer
157 packaged or installed by default, because too many users assumed
158 incorrectly that ovs-controller was a necessary or desirable part
159 of an Open vSwitch deployment.
160 - Added vlog option to export to a UDP syslog sink.
162 * The "monitor" command can now monitor all tables in a database,
163 instead of being limited to a single table.
164 - The flow-eviction-threshold has been replaced by the flow-limit which is a
165 hard limit on the number of flows in the datapath. It defaults to 200,000
166 flows. OVS automatically adjusts this number depending on network
168 - Added IPv6 support for active and passive socket communications.
172 ---------------------
173 - The ovs-vswitchd process is no longer single-threaded. Multiple
174 threads are now used to handle flow set up and asynchronous
177 * Experimental support for OpenFlow 1.1 (in addition to 1.2 and
178 1.3, which had experimental support in 1.10).
179 * Experimental protocol support for OpenFlow 1.1+ groups. This
180 does not yet include an implementation in the Open vSwitch
182 * Experimental protocol support for OpenFlow 1.2+ meters. This
183 does not yet include an implementation in the Open vSwitch
185 * New support for matching outer source and destination IP address
186 of tunneled packets, for tunnel ports configured with the newly
187 added "remote_ip=flow" and "local_ip=flow" options.
188 * Support for matching on metadata 'pkt_mark' for interacting with
189 other system components. On Linux this corresponds to the skb
191 * Support matching, rewriting SCTP ports
192 - The Interface table in the database has a new "ifindex" column to
193 report the interface's OS-assigned ifindex.
194 - New "check-oftest" Makefile target for running OFTest against Open
195 vSwitch. See README-OFTest for details.
196 - The flow eviction threshold has been moved to the Open_vSwitch table.
197 - Database names are now mandatory when specifying ovsdb-server options
198 through database paths (e.g. Private key option with the database name
199 should look like "--private-key=db:Open_vSwitch,SSL,private_key").
200 - Added ovs-dev.py, a utility script helpful for Open vSwitch developers.
201 - Support for Linux kernels up to 3.10
203 * New "ofp-parse" for printing OpenFlow messages read from a file.
204 * New commands for OpenFlow 1.1+ groups.
205 - Added configurable flow caching support to IPFIX exporter.
206 - Dropped support for Linux pre-2.6.32.
207 - Log file timestamps and ovsdb commit timestamps are now reported
208 with millisecond resolution. (Previous versions only reported
212 v1.11.0 - 28 Aug 2013
213 ---------------------
214 - Support for megaflows, which allows wildcarding in the kernel (and
215 any dpif implementation that supports wildcards). Depending on
216 the flow table and switch configuration, flow set up rates are
217 close to the Linux bridge.
218 - The "tutorial" directory contains a new tutorial for some advanced
219 Open vSwitch features.
220 - Stable bond mode has been removed.
221 - The autopath action has been removed.
222 - New support for the data encapsulation format of the LISP tunnel
223 protocol (RFC 6830). An external control plane or manual flow
224 setup is required for EID-to-RLOC mapping.
226 * The "dec_mpls_ttl" and "set_mpls_ttl" actions from OpenFlow
227 1.1 and later are now implemented.
228 * New "stack" extension for use in actions, to push and pop from
230 * The "load" and "set_field" actions can now modify the "in_port". (This
231 allows one to enable output to a flow's input port by setting the
232 in_port to some unused value, such as OFPP_NONE.)
234 * New debugging commands "add-flow", "mod-flow", "del-flow".
235 * "dump-flows" now has a -m option to increase output verbosity.
236 - In dpif-based bridges, cache action translations, which can improve
237 flow set up performance by 80% with a complicated flow table.
238 - New syslog format, prefixed with "ovs|", to be easier to filter.
239 - RHEL: Removes the default firewall rule that allowed GRE traffic to
240 pass through. Any users that relied on this automatic firewall hole
241 will have to manually configure it. The ovs-ctl(8) manpage documents
242 the "enable-protocol" command that can be used as an alternative.
243 - New CFM demand mode which uses data traffic to indicate interface
246 v1.10.0 - 01 May 2013
247 ---------------------
248 - Bridge compatibility support has been removed. Any uses that
249 rely on ovs-brcompatd will have to stick with Open vSwitch 1.9.x
250 or adapt to native Open vSwitch support (e.g. use ovs-vsctl instead
252 - The maximum size of the MAC learning table is now configurable.
253 - With the Linux datapath, packets for new flows are now queued
254 separately on a per-port basis, so it should no longer be
255 possible for a large number of new flows arriving on one port to
256 prevent new flows from being processed on other ports.
258 * Previously ovs-vsctl would retry connecting to the database forever,
259 causing it to hang if ovsdb-server was not running. Now, ovs-vsctl
260 only tries once by default (use --retry to try forever). This change
261 means that you may want to remove uses of --timeout to avoid hangs
263 * Many "ovs-vsctl" database commands now accept an --if-exists option.
264 Please refer to the ovs-vsctl manpage for details.
266 - Experimental support for newer versions of OpenFlow. See
267 the "What versions of OpenFlow does Open vSwitch support?"
268 question in the FAQ for more details.
269 - The OpenFlow "dp_desc" may now be configured by setting the
270 value of other-config:dp-desc in the Bridge table.
271 - It is possible to request the OpenFlow port number with the
272 "ofport_request" column in the Interface table.
273 - The NXM flow_removed message now reports the OpenFlow table ID
274 from which the flow was removed.
276 - New support for the VXLAN tunnel protocol (see the IETF draft here:
277 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03).
278 - Tunneling requires the version of the kernel module paired with
279 Open vSwitch 1.9.0 or later.
280 - Inheritance of the Don't Fragment bit in IP tunnels (df_inherit)
281 is no longer supported.
282 - Path MTU discovery is no longer supported.
283 - CAPWAP tunneling support removed.
284 - Tunnels with multicast destination ports are no longer supported.
286 - The "dump-flows" and "del-flows" no longer require an argument
287 if only one datapath exists.
289 - New "vlog/disable-rate-limit" and "vlog/enable-rate-limit"
290 commands available allow control over logging rate limits.
291 - New "dpif/dump-dps", "dpif/show", and "dpif/dump-flows" command
292 that mimic the equivalent ovs-dpctl commands.
293 - The ofproto library is now responsible for assigning OpenFlow port
294 numbers. An ofproto implementation should assign them when
295 port_construct() is called.
296 - All dpif-based bridges of a particular type share a common
297 datapath called "ovs-<type>", e.g. "ovs-system". The ovs-dpctl
298 commands will now return information on that shared datapath. To
299 get the equivalent bridge-specific information, use the new
300 "ovs-appctl dpif/*" commands.
301 - Backward-incompatible changes:
302 - Earlier Open vSwitch versions treated ANY as a wildcard in flow
303 syntax. OpenFlow 1.1 adds a port named ANY, which introduces a
304 conflict. ANY was rarely used in flow syntax, so we chose to
305 retire that meaning of ANY in favor of the OpenFlow 1.1 meaning.
306 - Patch ports no longer require kernel support, so they now work
307 with FreeBSD and the kernel module built into Linux 3.3 and later.
308 - New "sample" action.
312 ------------------------
314 - Support for ipv6 set action.
315 - SKB mark matching and setting.
316 - support for Linux kernels up to 3.8
317 - FreeBSD is now a supported platform, thanks to code contributions from
318 Gaetano Catalli, Ed Maste, and Giuseppe Lettieri.
319 - ovs-bugtool: New --ovs option to report only OVS related information.
320 - New %t and %T log escapes to identify the subprogram within a
321 cooperating group of processes or threads that emitted a log message.
322 The default log patterns now include this information.
324 - Allow bitwise masking for SHA and THA fields in ARP, SLL and TLL
325 fields in IPv6 neighbor discovery messages, and IPv6 flow label.
326 - Adds support for writing to the metadata field for a flow.
328 - The tunneling code no longer assumes input and output keys are
329 symmetric. If they are not, PMTUD needs to be disabled for
330 tunneling to work. Note this only applies to flow-based keys.
331 - New support for a nonstandard form of GRE that supports a 64-bit key.
332 - Tunnel Path MTU Discovery default value was set to 'disabled'.
333 This feature is deprecated and will be removed soon.
334 - Tunnel header caching removed.
336 - Commands and actions that accept port numbers now also accept keywords
337 that represent those ports (such as LOCAL, NONE, and ALL). This is
338 also the recommended way to specify these ports, for compatibility
339 with OpenFlow 1.1 and later (which use the OpenFlow 1.0 numbers
340 for these ports for different purposes).
342 - Support requesting the port number with the "port_no" option in
343 the "add-if" command.
344 - ovs-pki: The "online PKI" features have been removed, along with
345 the ovs-pki-cgi program that facilitated it, because of some
346 alarmist insecurity claims. We do not believe that these claims
347 are true, but because we do not know of any users for this
348 feature it seems better on balance to remove it. (The ovs-pki-cgi
349 program was not included in distribution packaging.)
350 - ovsdb-server now enforces the immutability of immutable columns. This
351 was not enforced in earlier versions due to an oversight.
352 - The following features are now deprecated. They will be removed no
353 earlier than February 2013. Please email dev@openvswitch.org with
355 - Bridge compatibility.
357 - The autopath action.
358 - Interface type "null".
359 - Numeric values for reserved ports (see "ovs-ofctl" note above).
360 - Tunnel Path MTU Discovery.
361 - CAPWAP tunnel support.
362 - The data in the RARP packets can now be matched in the same way as the
367 ------------------------
368 *** Internal only release ***
369 - New FAQ. Please send updates and additions!
370 - Authors of controllers, please read the new section titled "Action
371 Reproduction" in DESIGN, which describes an Open vSwitch change in
372 behavior in corner cases that may affect some controllers.
374 - A new test utility that can create L3 tunnel between two Open
375 vSwitches and detect connectivity issues.
377 - New --sort and --rsort options for "dump-flows" command.
378 - "mod-port" command can now control all OpenFlow config flags.
380 - Allow general bitwise masking for IPv4 and IPv6 addresses in
381 IPv4, IPv6, and ARP packets. (Previously, only CIDR masks
383 - Allow support for arbitrary Ethernet masks. (Previously, only
384 the multicast bit in the destination address could be individually
386 - New field OXM_OF_METADATA, to align with OpenFlow 1.1.
387 - The OFPST_QUEUE request now reports an error if a specified port or
388 queue does not exist, or for requests for a specific queue on all
389 ports, if the specified queue does not exist on any port. (Previous
390 versions generally reported an empty set of results.)
391 - New "flow monitor" feature to allow controllers to be notified of
392 flow table changes as they happen.
393 - Additional protocols are not mirrored and dropped when forward-bpdu is
394 false. For a full list, see the ovs-vswitchd.conf.db man page.
395 - Open vSwitch now sends RARP packets in situations where it previously
396 sent a custom protocol, making it consistent with behavior of QEMU and
398 - All Open vSwitch programs and log files now show timestamps in UTC,
399 instead the local timezone, by default.
403 ------------------------
404 - kernel modules are renamed. openvswitch_mod.ko is now
405 openvswitch.ko and brcompat_mod.ko is now brcompat.ko.
406 - Increased the number of NXM registers to 8.
407 - Added ability to configure DSCP setting for manager and controller
408 connections. By default, these connections have a DSCP value of
409 Internetwork Control (0xc0).
410 - Added the granular link health statistics, 'cfm_health', to an
413 - Added support to mask nd_target for ICMPv6 neighbor discovery flows.
414 - Added support for OpenFlow 1.3 port description (OFPMP_PORT_DESC)
417 - Added the "dump-ports-desc" command to retrieve port
418 information using the new port description multipart messages.
420 - Added support for spawning ovs-test server from the client.
421 - Now ovs-test is able to automatically create test bridges and ports.
422 - "ovs-dpctl dump-flows" now prints observed TCP flags in TCP flows.
423 - Tripled flow setup performance.
424 - The "coverage/log" command previously available through ovs-appctl
425 has been replaced by "coverage/show". The new command replies with
426 coverage counter values, instead of logging them.
430 ------------------------
431 - Allow OFPP_CONTROLLER as the in_port for packet-out messages.
435 ------------------------
436 *** Internal only release ***
438 - LACP bonds no longer fall back to balance-slb when negotiations fail.
439 Instead they drop traffic.
440 - The default bond_mode changed from SLB to active-backup, to protect
441 unsuspecting users from the significant risks of SLB bonds (which are
442 documented in vswitchd/INTERNALS).
443 - Load balancing can be disabled by setting the bond-rebalance-interval
446 - Added support for bitwise matching on TCP and UDP ports.
447 See ovs-ofctl(8) for more information.
448 - NXM flow dumps now include times elapsed toward idle and hard
450 - Added an OpenFlow extension NXT_SET_ASYNC_CONFIG that allows
451 controllers more precise control over which OpenFlow messages they
452 receive asynchronously.
453 - New "fin_timeout" action.
454 - Added "fin_timeout" support to "learn" action.
455 - New Nicira action NXAST_CONTROLLER that offers additional features
456 over output to OFPP_CONTROLLER.
457 - When QoS settings for an interface do not configure a default queue
458 (queue 0), Open vSwitch now uses a default configuration for that
459 queue, instead of dropping all packets as in previous versions.
461 - Logging to console and file will have UTC timestamp as a default for
462 all the daemons. An example of the default format is
463 2012-01-27T16:35:17Z. ovs-appctl can be used to change the default
465 - The syntax of commands and options to set log levels was simplified,
466 to make it easier to remember.
467 - New support for limiting the number of flows in an OpenFlow flow
468 table, with configurable policy for evicting flows upon
469 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
470 for more information.
471 - New "enable-async-messages" column in the Controller table. If set to
472 false, OpenFlow connections to the controller will initially have all
473 asynchronous messages disabled, overriding normal OpenFlow behavior.
474 - ofproto-provider interface:
475 - "struct rule" has a new member "used" that ofproto implementations
476 should maintain by updating with ofproto_rule_update_used().
478 - The new option --timestamp causes the "monitor" command to print
479 a timestamp with every update.
480 - CFM module CCM broadcasts can now be tagged with an 802.1p priority.
484 ------------------------
486 - Added support for querying, modifying, and deleting flows
487 based on flow cookie when using NXM.
488 - Added new NXM_PACKET_IN format.
489 - Added new NXAST_DEC_TTL action.
491 - Added daemonization support to the monitor and snoop commands.
493 - The "find" command supports new set relational operators
494 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
495 - ovsdb-tool now uses the typical database and schema installation
496 directories as defaults.
497 - The default MAC learning timeout has been increased from 60 seconds
498 to 300 seconds. The MAC learning timeout is now configurable.
502 ------------------------
503 - Compatible with Open vSwitch kernel module included in Linux 3.3.
504 - New "VLAN splinters" feature to work around buggy device drivers
505 in old Linux versions. (This feature is deprecated. When
506 broken device drivers are no longer in widespread use, we will
507 delete this feature.) See ovs-vswitchd.conf.db(5) for more
510 - Added ability to match on IPv6 flow label through NXM.
511 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
512 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
513 - Added ability to modify ECN bits in IPv4.
514 - Added ability to modify TTL in IPv4.
516 - Don't require the "normal" action to use mirrors. Traffic will
517 now be properly mirrored for any flows, regardless of their
519 - Track packet and byte statistics sent on mirrors.
520 - The sFlow implementation can now usually infer the correct agent
521 device instead of having to be told explicitly.
523 - New "fdb/flush" command to flush bridge's MAC learning table.
525 - A new distributed testing tool that allows one to diagnose performance
526 and connectivity issues. This tool currently is not included in RH or
528 - RHEL packaging now supports integration with Red Hat network scripts.
530 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
531 to active-backup. SLB bonds carry significant risks with them
532 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
533 users from running into. Users are advised to update any scripts or
534 configuration which may be negatively impacted by explicitly setting
535 the bond mode which they want to use.
539 ------------------------
541 - Added an OpenFlow extension which allows the "output" action to accept
543 - Added an OpenFlow extension for flexible learning.
544 - Bumped number of NXM registers from four to five.
546 - New "version" command to determine version of running daemon.
547 - If no argument is provided for "cfm/show", displays detailed
548 information about all interfaces with CFM enabled.
549 - If no argument is provided for "lacp/show", displays detailed
550 information about all ports with LACP enabled.
552 - New "set-if" command to modify a datapath port's configuration.
554 - The software switch now supports 255 OpenFlow tables, instead
555 of just one. By default, only table 0 is consulted, but the
556 new NXAST_RESUBMIT_TABLE action can look up in additional
557 tables. Tables 128 and above are reserved for use by the
558 switch itself; please use only tables 0 through 127.
559 - Add support for 802.1D spanning tree (STP).
560 - Fragment handling extensions:
561 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
562 fields are made available for matching in fragments with
564 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
565 via "ip_frag" in ovs-ofctl).
566 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
567 fragment handling policy.
568 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
569 By default it remains compatible with the old version and other
570 standards-based implementations.
571 - Flow setups are now processed in a round-robin manner across ports
572 to prevent any single client from monopolizing the CPU and conducting
573 a denial of service attack.
574 - Added support for native VLAN tagging. A new "vlan_mode"
575 parameter can be set for "port". Possible values: "access",
576 "trunk", "native-tagged" and "native-untagged".
577 - test-openflowd has been removed. Please use ovs-vswitchd instead.
580 ------------------------
581 - New "ofproto" abstraction layer to ease porting to hardware
583 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
584 - Datapath support for Linux kernels up to 3.0.
586 - New "bundle" and "bundle_load" action extensions.
588 - Implement table unique constraints.
589 - Support cooperative locking between callers.
591 - New "-s" option for "show" command prints packet and byte
592 counters for each port.
594 - New "--readd" option for "replace-flows".
596 - New "show" command to print an overview of configuration.
597 - New "comment" command to add remark that explains intentions.
598 - ovs-brcompatd has been rewritten to fix long-standing bugs.
599 - ovs-openflowd has been renamed test-openflowd and moved into the
600 tests directory. Its presence confused too many users. Please
601 use ovs-vswitchd instead.
602 - New ovs-benchmark utility to test flow setup performance.
603 - A new log level "off" has been added. Configuring a log facility
604 "off" prevents any messages from being logged to it. Previously,
605 "emer" was effectively "off" because no messages were ever logged at
606 level "emer". Now, errors that cause a process to exit are logged
608 - "configure" option --with-l26 has been renamed --with-linux, and
609 --with-l26-source has been renamed --with-linux-source. The old
610 names will be removed after the next release, so please update
612 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
613 datapath/linux-2.6/compat-2.6 directories.
615 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
616 Please use the extensible match extensions instead.
617 - Removed the Maintenance_Point and Monitor tables in an effort
618 to simplify 802.1ag configuration.
619 - Performance and scalability improvements
623 ------------------------
624 - Ability to define policies over IPv6
627 - Support for extensible match extensions to OpenFlow
629 - Support for HFSC qdisc.
630 - Queue used by in-band control can now be configured.
632 - Kernel<->userspace interface has been reworked and should be
633 close to a stable ABI now.
634 - "Port group" concept has been dropped.
635 - GRE over IPSEC tunnels
637 - New active backup bonding mode.
638 - New L4 hashing support when LACP is enabled.
639 - Source MAC hash now includes VLAN field also.
641 - Greatly improved handling of large flow tables
643 - "show" command now prints full vport configuration.
644 - "dump-groups" command removed since kernel support for
645 port groups was dropped.
647 - New commands for working with the new Managers table.
648 - "list" command enhanced with new formatting options and --columns
650 - "get" command now accepts new --id option.
651 - New "find" command.
653 - New "queue-stats" command for printing queue stats.
654 - New commands "replace-flows" and "diff-flows".
655 - Commands to add and remove flows can now read from files.
656 - New --flow-format option to enable or disable NXM.
657 - New --more option to increase OpenFlow message verbosity.
658 - Removed "tun-cookie" command, which is no longer useful.
659 - ovs-controller enhancements for testing various features.
660 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
661 bugs. New ovs-vlan-bug-workaround command for enabling and
662 disabling a workaround for these driver bugs.
664 - "Resubmit" actions now update flow statistics.
665 - New "register" extension for use in matching and actions, via NXM.
666 - New "multipath" experimental action extension.
667 - New support for matching multicast Ethernet frames, via NXM.
668 - New extension for OpenFlow vendor error codes.
669 - New extension to set the QoS output queue without actually
670 sending to an output port.
671 - Open vSwitch now reports a single flow table, instead of
672 separate hash and wildcard tables. This better models the
673 current implementation.
674 - New experimental "note" action.
675 - New "ofproto/trace" ovs-appctl command and associated utilities
676 to ease debugging complex flow tables.
678 - Schema documentation now includes an entity-relationship diagram.
679 - The database is now garbage collected. In most tables,
680 unreferenced rows will be deleted automatically.
681 - Many tables now include statistics updated periodically by
682 ovs-vswitchd or ovsdb-server.
683 - Every table now has an "external-ids" column for use by OVS
685 - There is no default controller anymore. Each bridge must have its
686 controller individually specified.
687 - The "fail-mode" is now a property of a Bridge instead of a Controller.
688 - New versioning and checksum features.
689 - New Managers table and manager_options column in Open_vSwitch table
690 for specifying managers. The old "managers" column in the
691 Open_vSwitch table has been removed.
692 - Many "name" columns are now immutable.
694 - Dropped support for XenServer pre-5.6.100.
695 - Dropped support for Linux pre-2.6.18.
696 - Dropped controller discovery support.
697 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
698 Statistics reporting in the database is a rough equivalent.
699 - Dropped the "corekeeper" package (now separate, at
700 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
701 - Performance and scalability improvements
704 v1.1.0pre2 - 13 Sep 2010
705 ------------------------
708 v1.1.0pre1 - 31 Aug 2010
709 ------------------------
710 - OpenFlow 1.0 slicing (QoS) functionality
711 - Python bindings for configuration database (no write support)
712 - Performance and scalability improvements
717 - New "patch" interface type
722 - Configuration database with remote management
725 - Support for XenServer 5.5 and 5.6
726 - Performance and scalability improvements
729 v0.99.2 - 18 Feb 2010
730 ---------------------
733 v0.99.1 - 25 Jan 2010
734 ---------------------
735 - Add support for sFlow(R)
736 - Make headers compatible with C++
739 v0.99.0 - 14 Jan 2010
740 ---------------------
741 - User-space forwarding engine
744 v0.90.7 - 29 Nov 2009
745 ---------------------
746 - Add support for NetFlow active timeouts
753 v0.90.5 - 21 Sep 2009
754 ---------------------
755 - Generalize in-band control to more diverse network setups
projects / cascardo / ovs.git / blob