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 extended registers are now supported.
29 * The OpenFlow 1.5 actset_output field is now supported.
30 * OpenFlow 1.5 Copy-Field action is now supported.
31 * OpenFlow 1.5 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
66 - Support for VXLAN Group Policy extension
67 - Initial support for the IETF Auto-Attach SPBM draft standard. This
68 contains rudimentary support for the LLDP protocol as needed for
74 - OpenFlow 1.1, 1.2, and 1.3 are now enabled by default in
76 - Linux kernel datapath now has an exact match cache optimizing the
77 flow matching process.
78 - Datapath flows now have partially wildcarded tranport port field
79 matches. This reduces userspace upcalls, but increases the
80 number of different masks in the datapath. The kernel datapath
81 exact match cache removes the overhead of matching the incoming
82 packets with the larger number of masks, but when paired with an
83 older kernel module, some workloads may perform worse with the
85 - Compatibility with autoconf 2.63 (previously >=2.64)
87 v2.2.0 - Internal Release
89 - Internal ports are no longer brought up by default, because it
90 should be an administrator task to bring up devices as they are
92 - ovs-vsctl now reports when ovs-vswitchd fails to create a new port or
94 - Port creation and configuration errors are now stored in a new error
95 column of the Interface table and included in 'ovs-vsctl show'.
96 - The "ovsdbmonitor" graphical tool has been removed, because it was
97 poorly maintained and not widely used.
98 - New "check-ryu" Makefile target for running Ryu tests for OpenFlow
99 controllers against Open vSwitch. See INSTALL.md for details.
100 - Added IPFIX support for SCTP flows and templates for ICMPv4/v6 flows.
101 - Upon the receipt of a SIGHUP signal, ovs-vswitchd no longer reopens its
102 log file (it will terminate instead). Please use 'ovs-appctl vlog/reopen'
104 - Support for Linux kernels up to 3.14. From Kernel 3.12 onwards OVS uses
105 tunnel API for GRE and VXLAN.
106 - Added DPDK support.
107 - Added support for custom vlog patterns in Python
111 ---------------------
112 - Address prefix tracking support for flow tables. New columns
113 "prefixes" in OVS-DB table "Flow_Table" controls which packet
114 header fields are used for address prefix tracking. Prefix
115 tracking allows the classifier to skip rules with longer than
116 necessary prefixes, resulting in better wildcarding for datapath
117 flows. Default configuration is to not use any fields for prefix
118 tracking. However, if any flow tables contain both exact matches
119 and masked matches for IP address fields, OVS performance may be
120 increased by using this feature.
121 * As of now, the fields for which prefix lookup can be enabled
122 are: 'tun_id', 'tun_src', 'tun_dst', 'nw_src', 'nw_dst' (or
123 aliases 'ip_src' and 'ip_dst'), 'ipv6_src', and 'ipv6_dst'.
124 (Using this feature for 'tun_id' would only make sense if the
125 tunnel IDs have prefix structure similar to IP addresses.)
126 * There is a maximum number of fields that can be enabled for any
127 one flow table. Currently this limit is 3.
129 $ ovs-vsctl set Bridge br0 flow_tables:0=@N1 -- \
130 --id=@N1 create Flow_Table name=table0
131 $ ovs-vsctl set Bridge br0 flow_tables:1=@N1 -- \
132 --id=@N1 create Flow_Table name=table1
133 $ ovs-vsctl set Flow_Table table0 prefixes=ip_dst,ip_src
134 $ ovs-vsctl set Flow_Table table1 prefixes=[]
135 - TCP flags matching: OVS now supports matching of TCP flags. This
136 has an adverse performance impact when using OVS userspace 1.10
137 or older (no megaflows support) together with the new OVS kernel
138 module. It is recommended that the kernel and userspace modules
139 both are upgraded at the same time.
140 - The default OpenFlow and OVSDB ports will change to
141 IANA-assigned numbers in a future release. Consider updating
142 your installations to specify port numbers instead of using the
145 * The OpenFlow 1.1+ "Write-Actions" instruction is now supported.
146 * OVS limits the OpenFlow port numbers it assigns to port 32767 and
147 below, leaving port numbers above that range free for assignment
149 * ovs-vswitchd now honors changes to the "ofport_request" column
150 in the Interface table by changing the port's OpenFlow port
152 * The Open vSwitch software switch now supports OpenFlow groups.
153 - ovs-vswitchd.conf.db.5 man page will contain graphviz/dot
154 diagram only if graphviz package was installed at the build time.
155 - Support for Linux kernels up to 3.11
157 The "show" command also displays mega flow mask stats.
159 * New command "ofp-parse-pcap" to dump OpenFlow from PCAP files.
160 - ovs-controller has been renamed test-controller. It is no longer
161 packaged or installed by default, because too many users assumed
162 incorrectly that ovs-controller was a necessary or desirable part
163 of an Open vSwitch deployment.
164 - Added vlog option to export to a UDP syslog sink.
166 * The "monitor" command can now monitor all tables in a database,
167 instead of being limited to a single table.
168 - The flow-eviction-threshold has been replaced by the flow-limit which is a
169 hard limit on the number of flows in the datapath. It defaults to 200,000
170 flows. OVS automatically adjusts this number depending on network
172 - Added IPv6 support for active and passive socket communications.
176 ---------------------
177 - The ovs-vswitchd process is no longer single-threaded. Multiple
178 threads are now used to handle flow set up and asynchronous
181 * Experimental support for OpenFlow 1.1 (in addition to 1.2 and
182 1.3, which had experimental support in 1.10).
183 * Experimental protocol support for OpenFlow 1.1+ groups. This
184 does not yet include an implementation in the Open vSwitch
186 * Experimental protocol support for OpenFlow 1.2+ meters. This
187 does not yet include an implementation in the Open vSwitch
189 * New support for matching outer source and destination IP address
190 of tunneled packets, for tunnel ports configured with the newly
191 added "remote_ip=flow" and "local_ip=flow" options.
192 * Support for matching on metadata 'pkt_mark' for interacting with
193 other system components. On Linux this corresponds to the skb
195 * Support matching, rewriting SCTP ports
196 - The Interface table in the database has a new "ifindex" column to
197 report the interface's OS-assigned ifindex.
198 - New "check-oftest" Makefile target for running OFTest against Open
199 vSwitch. See README-OFTest for details.
200 - The flow eviction threshold has been moved to the Open_vSwitch table.
201 - Database names are now mandatory when specifying ovsdb-server options
202 through database paths (e.g. Private key option with the database name
203 should look like "--private-key=db:Open_vSwitch,SSL,private_key").
204 - Added ovs-dev.py, a utility script helpful for Open vSwitch developers.
205 - Support for Linux kernels up to 3.10
207 * New "ofp-parse" for printing OpenFlow messages read from a file.
208 * New commands for OpenFlow 1.1+ groups.
209 - Added configurable flow caching support to IPFIX exporter.
210 - Dropped support for Linux pre-2.6.32.
211 - Log file timestamps and ovsdb commit timestamps are now reported
212 with millisecond resolution. (Previous versions only reported
216 v1.11.0 - 28 Aug 2013
217 ---------------------
218 - Support for megaflows, which allows wildcarding in the kernel (and
219 any dpif implementation that supports wildcards). Depending on
220 the flow table and switch configuration, flow set up rates are
221 close to the Linux bridge.
222 - The "tutorial" directory contains a new tutorial for some advanced
223 Open vSwitch features.
224 - Stable bond mode has been removed.
225 - The autopath action has been removed.
226 - New support for the data encapsulation format of the LISP tunnel
227 protocol (RFC 6830). An external control plane or manual flow
228 setup is required for EID-to-RLOC mapping.
230 * The "dec_mpls_ttl" and "set_mpls_ttl" actions from OpenFlow
231 1.1 and later are now implemented.
232 * New "stack" extension for use in actions, to push and pop from
234 * The "load" and "set_field" actions can now modify the "in_port". (This
235 allows one to enable output to a flow's input port by setting the
236 in_port to some unused value, such as OFPP_NONE.)
238 * New debugging commands "add-flow", "mod-flow", "del-flow".
239 * "dump-flows" now has a -m option to increase output verbosity.
240 - In dpif-based bridges, cache action translations, which can improve
241 flow set up performance by 80% with a complicated flow table.
242 - New syslog format, prefixed with "ovs|", to be easier to filter.
243 - RHEL: Removes the default firewall rule that allowed GRE traffic to
244 pass through. Any users that relied on this automatic firewall hole
245 will have to manually configure it. The ovs-ctl(8) manpage documents
246 the "enable-protocol" command that can be used as an alternative.
247 - New CFM demand mode which uses data traffic to indicate interface
250 v1.10.0 - 01 May 2013
251 ---------------------
252 - Bridge compatibility support has been removed. Any uses that
253 rely on ovs-brcompatd will have to stick with Open vSwitch 1.9.x
254 or adapt to native Open vSwitch support (e.g. use ovs-vsctl instead
256 - The maximum size of the MAC learning table is now configurable.
257 - With the Linux datapath, packets for new flows are now queued
258 separately on a per-port basis, so it should no longer be
259 possible for a large number of new flows arriving on one port to
260 prevent new flows from being processed on other ports.
262 * Previously ovs-vsctl would retry connecting to the database forever,
263 causing it to hang if ovsdb-server was not running. Now, ovs-vsctl
264 only tries once by default (use --retry to try forever). This change
265 means that you may want to remove uses of --timeout to avoid hangs
267 * Many "ovs-vsctl" database commands now accept an --if-exists option.
268 Please refer to the ovs-vsctl manpage for details.
270 - Experimental support for newer versions of OpenFlow. See
271 the "What versions of OpenFlow does Open vSwitch support?"
272 question in the FAQ for more details.
273 - The OpenFlow "dp_desc" may now be configured by setting the
274 value of other-config:dp-desc in the Bridge table.
275 - It is possible to request the OpenFlow port number with the
276 "ofport_request" column in the Interface table.
277 - The NXM flow_removed message now reports the OpenFlow table ID
278 from which the flow was removed.
280 - New support for the VXLAN tunnel protocol (see the IETF draft here:
281 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03).
282 - Tunneling requires the version of the kernel module paired with
283 Open vSwitch 1.9.0 or later.
284 - Inheritance of the Don't Fragment bit in IP tunnels (df_inherit)
285 is no longer supported.
286 - Path MTU discovery is no longer supported.
287 - CAPWAP tunneling support removed.
288 - Tunnels with multicast destination ports are no longer supported.
290 - The "dump-flows" and "del-flows" no longer require an argument
291 if only one datapath exists.
293 - New "vlog/disable-rate-limit" and "vlog/enable-rate-limit"
294 commands available allow control over logging rate limits.
295 - New "dpif/dump-dps", "dpif/show", and "dpif/dump-flows" command
296 that mimic the equivalent ovs-dpctl commands.
297 - The ofproto library is now responsible for assigning OpenFlow port
298 numbers. An ofproto implementation should assign them when
299 port_construct() is called.
300 - All dpif-based bridges of a particular type share a common
301 datapath called "ovs-<type>", e.g. "ovs-system". The ovs-dpctl
302 commands will now return information on that shared datapath. To
303 get the equivalent bridge-specific information, use the new
304 "ovs-appctl dpif/*" commands.
305 - Backward-incompatible changes:
306 - Earlier Open vSwitch versions treated ANY as a wildcard in flow
307 syntax. OpenFlow 1.1 adds a port named ANY, which introduces a
308 conflict. ANY was rarely used in flow syntax, so we chose to
309 retire that meaning of ANY in favor of the OpenFlow 1.1 meaning.
310 - Patch ports no longer require kernel support, so they now work
311 with FreeBSD and the kernel module built into Linux 3.3 and later.
312 - New "sample" action.
316 ------------------------
318 - Support for ipv6 set action.
319 - SKB mark matching and setting.
320 - support for Linux kernels up to 3.8
321 - FreeBSD is now a supported platform, thanks to code contributions from
322 Gaetano Catalli, Ed Maste, and Giuseppe Lettieri.
323 - ovs-bugtool: New --ovs option to report only OVS related information.
324 - New %t and %T log escapes to identify the subprogram within a
325 cooperating group of processes or threads that emitted a log message.
326 The default log patterns now include this information.
328 - Allow bitwise masking for SHA and THA fields in ARP, SLL and TLL
329 fields in IPv6 neighbor discovery messages, and IPv6 flow label.
330 - Adds support for writing to the metadata field for a flow.
332 - The tunneling code no longer assumes input and output keys are
333 symmetric. If they are not, PMTUD needs to be disabled for
334 tunneling to work. Note this only applies to flow-based keys.
335 - New support for a nonstandard form of GRE that supports a 64-bit key.
336 - Tunnel Path MTU Discovery default value was set to 'disabled'.
337 This feature is deprecated and will be removed soon.
338 - Tunnel header caching removed.
340 - Commands and actions that accept port numbers now also accept keywords
341 that represent those ports (such as LOCAL, NONE, and ALL). This is
342 also the recommended way to specify these ports, for compatibility
343 with OpenFlow 1.1 and later (which use the OpenFlow 1.0 numbers
344 for these ports for different purposes).
346 - Support requesting the port number with the "port_no" option in
347 the "add-if" command.
348 - ovs-pki: The "online PKI" features have been removed, along with
349 the ovs-pki-cgi program that facilitated it, because of some
350 alarmist insecurity claims. We do not believe that these claims
351 are true, but because we do not know of any users for this
352 feature it seems better on balance to remove it. (The ovs-pki-cgi
353 program was not included in distribution packaging.)
354 - ovsdb-server now enforces the immutability of immutable columns. This
355 was not enforced in earlier versions due to an oversight.
356 - The following features are now deprecated. They will be removed no
357 earlier than February 2013. Please email dev@openvswitch.org with
359 - Bridge compatibility.
361 - The autopath action.
362 - Interface type "null".
363 - Numeric values for reserved ports (see "ovs-ofctl" note above).
364 - Tunnel Path MTU Discovery.
365 - CAPWAP tunnel support.
366 - The data in the RARP packets can now be matched in the same way as the
371 ------------------------
372 *** Internal only release ***
373 - New FAQ. Please send updates and additions!
374 - Authors of controllers, please read the new section titled "Action
375 Reproduction" in DESIGN, which describes an Open vSwitch change in
376 behavior in corner cases that may affect some controllers.
378 - A new test utility that can create L3 tunnel between two Open
379 vSwitches and detect connectivity issues.
381 - New --sort and --rsort options for "dump-flows" command.
382 - "mod-port" command can now control all OpenFlow config flags.
384 - Allow general bitwise masking for IPv4 and IPv6 addresses in
385 IPv4, IPv6, and ARP packets. (Previously, only CIDR masks
387 - Allow support for arbitrary Ethernet masks. (Previously, only
388 the multicast bit in the destination address could be individually
390 - New field OXM_OF_METADATA, to align with OpenFlow 1.1.
391 - The OFPST_QUEUE request now reports an error if a specified port or
392 queue does not exist, or for requests for a specific queue on all
393 ports, if the specified queue does not exist on any port. (Previous
394 versions generally reported an empty set of results.)
395 - New "flow monitor" feature to allow controllers to be notified of
396 flow table changes as they happen.
397 - Additional protocols are not mirrored and dropped when forward-bpdu is
398 false. For a full list, see the ovs-vswitchd.conf.db man page.
399 - Open vSwitch now sends RARP packets in situations where it previously
400 sent a custom protocol, making it consistent with behavior of QEMU and
402 - All Open vSwitch programs and log files now show timestamps in UTC,
403 instead the local timezone, by default.
407 ------------------------
408 - kernel modules are renamed. openvswitch_mod.ko is now
409 openvswitch.ko and brcompat_mod.ko is now brcompat.ko.
410 - Increased the number of NXM registers to 8.
411 - Added ability to configure DSCP setting for manager and controller
412 connections. By default, these connections have a DSCP value of
413 Internetwork Control (0xc0).
414 - Added the granular link health statistics, 'cfm_health', to an
417 - Added support to mask nd_target for ICMPv6 neighbor discovery flows.
418 - Added support for OpenFlow 1.3 port description (OFPMP_PORT_DESC)
421 - Added the "dump-ports-desc" command to retrieve port
422 information using the new port description multipart messages.
424 - Added support for spawning ovs-test server from the client.
425 - Now ovs-test is able to automatically create test bridges and ports.
426 - "ovs-dpctl dump-flows" now prints observed TCP flags in TCP flows.
427 - Tripled flow setup performance.
428 - The "coverage/log" command previously available through ovs-appctl
429 has been replaced by "coverage/show". The new command replies with
430 coverage counter values, instead of logging them.
434 ------------------------
435 - Allow OFPP_CONTROLLER as the in_port for packet-out messages.
439 ------------------------
440 *** Internal only release ***
442 - LACP bonds no longer fall back to balance-slb when negotiations fail.
443 Instead they drop traffic.
444 - The default bond_mode changed from SLB to active-backup, to protect
445 unsuspecting users from the significant risks of SLB bonds (which are
446 documented in vswitchd/INTERNALS).
447 - Load balancing can be disabled by setting the bond-rebalance-interval
450 - Added support for bitwise matching on TCP and UDP ports.
451 See ovs-ofctl(8) for more information.
452 - NXM flow dumps now include times elapsed toward idle and hard
454 - Added an OpenFlow extension NXT_SET_ASYNC_CONFIG that allows
455 controllers more precise control over which OpenFlow messages they
456 receive asynchronously.
457 - New "fin_timeout" action.
458 - Added "fin_timeout" support to "learn" action.
459 - New Nicira action NXAST_CONTROLLER that offers additional features
460 over output to OFPP_CONTROLLER.
461 - When QoS settings for an interface do not configure a default queue
462 (queue 0), Open vSwitch now uses a default configuration for that
463 queue, instead of dropping all packets as in previous versions.
465 - Logging to console and file will have UTC timestamp as a default for
466 all the daemons. An example of the default format is
467 2012-01-27T16:35:17Z. ovs-appctl can be used to change the default
469 - The syntax of commands and options to set log levels was simplified,
470 to make it easier to remember.
471 - New support for limiting the number of flows in an OpenFlow flow
472 table, with configurable policy for evicting flows upon
473 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
474 for more information.
475 - New "enable-async-messages" column in the Controller table. If set to
476 false, OpenFlow connections to the controller will initially have all
477 asynchronous messages disabled, overriding normal OpenFlow behavior.
478 - ofproto-provider interface:
479 - "struct rule" has a new member "used" that ofproto implementations
480 should maintain by updating with ofproto_rule_update_used().
482 - The new option --timestamp causes the "monitor" command to print
483 a timestamp with every update.
484 - CFM module CCM broadcasts can now be tagged with an 802.1p priority.
488 ------------------------
490 - Added support for querying, modifying, and deleting flows
491 based on flow cookie when using NXM.
492 - Added new NXM_PACKET_IN format.
493 - Added new NXAST_DEC_TTL action.
495 - Added daemonization support to the monitor and snoop commands.
497 - The "find" command supports new set relational operators
498 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
499 - ovsdb-tool now uses the typical database and schema installation
500 directories as defaults.
501 - The default MAC learning timeout has been increased from 60 seconds
502 to 300 seconds. The MAC learning timeout is now configurable.
506 ------------------------
507 - Compatible with Open vSwitch kernel module included in Linux 3.3.
508 - New "VLAN splinters" feature to work around buggy device drivers
509 in old Linux versions. (This feature is deprecated. When
510 broken device drivers are no longer in widespread use, we will
511 delete this feature.) See ovs-vswitchd.conf.db(5) for more
514 - Added ability to match on IPv6 flow label through NXM.
515 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
516 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
517 - Added ability to modify ECN bits in IPv4.
518 - Added ability to modify TTL in IPv4.
520 - Don't require the "normal" action to use mirrors. Traffic will
521 now be properly mirrored for any flows, regardless of their
523 - Track packet and byte statistics sent on mirrors.
524 - The sFlow implementation can now usually infer the correct agent
525 device instead of having to be told explicitly.
527 - New "fdb/flush" command to flush bridge's MAC learning table.
529 - A new distributed testing tool that allows one to diagnose performance
530 and connectivity issues. This tool currently is not included in RH or
532 - RHEL packaging now supports integration with Red Hat network scripts.
534 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
535 to active-backup. SLB bonds carry significant risks with them
536 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
537 users from running into. Users are advised to update any scripts or
538 configuration which may be negatively impacted by explicitly setting
539 the bond mode which they want to use.
543 ------------------------
545 - Added an OpenFlow extension which allows the "output" action to accept
547 - Added an OpenFlow extension for flexible learning.
548 - Bumped number of NXM registers from four to five.
550 - New "version" command to determine version of running daemon.
551 - If no argument is provided for "cfm/show", displays detailed
552 information about all interfaces with CFM enabled.
553 - If no argument is provided for "lacp/show", displays detailed
554 information about all ports with LACP enabled.
556 - New "set-if" command to modify a datapath port's configuration.
558 - The software switch now supports 255 OpenFlow tables, instead
559 of just one. By default, only table 0 is consulted, but the
560 new NXAST_RESUBMIT_TABLE action can look up in additional
561 tables. Tables 128 and above are reserved for use by the
562 switch itself; please use only tables 0 through 127.
563 - Add support for 802.1D spanning tree (STP).
564 - Fragment handling extensions:
565 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
566 fields are made available for matching in fragments with
568 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
569 via "ip_frag" in ovs-ofctl).
570 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
571 fragment handling policy.
572 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
573 By default it remains compatible with the old version and other
574 standards-based implementations.
575 - Flow setups are now processed in a round-robin manner across ports
576 to prevent any single client from monopolizing the CPU and conducting
577 a denial of service attack.
578 - Added support for native VLAN tagging. A new "vlan_mode"
579 parameter can be set for "port". Possible values: "access",
580 "trunk", "native-tagged" and "native-untagged".
581 - test-openflowd has been removed. Please use ovs-vswitchd instead.
584 ------------------------
585 - New "ofproto" abstraction layer to ease porting to hardware
587 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
588 - Datapath support for Linux kernels up to 3.0.
590 - New "bundle" and "bundle_load" action extensions.
592 - Implement table unique constraints.
593 - Support cooperative locking between callers.
595 - New "-s" option for "show" command prints packet and byte
596 counters for each port.
598 - New "--readd" option for "replace-flows".
600 - New "show" command to print an overview of configuration.
601 - New "comment" command to add remark that explains intentions.
602 - ovs-brcompatd has been rewritten to fix long-standing bugs.
603 - ovs-openflowd has been renamed test-openflowd and moved into the
604 tests directory. Its presence confused too many users. Please
605 use ovs-vswitchd instead.
606 - New ovs-benchmark utility to test flow setup performance.
607 - A new log level "off" has been added. Configuring a log facility
608 "off" prevents any messages from being logged to it. Previously,
609 "emer" was effectively "off" because no messages were ever logged at
610 level "emer". Now, errors that cause a process to exit are logged
612 - "configure" option --with-l26 has been renamed --with-linux, and
613 --with-l26-source has been renamed --with-linux-source. The old
614 names will be removed after the next release, so please update
616 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
617 datapath/linux-2.6/compat-2.6 directories.
619 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
620 Please use the extensible match extensions instead.
621 - Removed the Maintenance_Point and Monitor tables in an effort
622 to simplify 802.1ag configuration.
623 - Performance and scalability improvements
627 ------------------------
628 - Ability to define policies over IPv6
631 - Support for extensible match extensions to OpenFlow
633 - Support for HFSC qdisc.
634 - Queue used by in-band control can now be configured.
636 - Kernel<->userspace interface has been reworked and should be
637 close to a stable ABI now.
638 - "Port group" concept has been dropped.
639 - GRE over IPSEC tunnels
641 - New active backup bonding mode.
642 - New L4 hashing support when LACP is enabled.
643 - Source MAC hash now includes VLAN field also.
645 - Greatly improved handling of large flow tables
647 - "show" command now prints full vport configuration.
648 - "dump-groups" command removed since kernel support for
649 port groups was dropped.
651 - New commands for working with the new Managers table.
652 - "list" command enhanced with new formatting options and --columns
654 - "get" command now accepts new --id option.
655 - New "find" command.
657 - New "queue-stats" command for printing queue stats.
658 - New commands "replace-flows" and "diff-flows".
659 - Commands to add and remove flows can now read from files.
660 - New --flow-format option to enable or disable NXM.
661 - New --more option to increase OpenFlow message verbosity.
662 - Removed "tun-cookie" command, which is no longer useful.
663 - ovs-controller enhancements for testing various features.
664 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
665 bugs. New ovs-vlan-bug-workaround command for enabling and
666 disabling a workaround for these driver bugs.
668 - "Resubmit" actions now update flow statistics.
669 - New "register" extension for use in matching and actions, via NXM.
670 - New "multipath" experimental action extension.
671 - New support for matching multicast Ethernet frames, via NXM.
672 - New extension for OpenFlow vendor error codes.
673 - New extension to set the QoS output queue without actually
674 sending to an output port.
675 - Open vSwitch now reports a single flow table, instead of
676 separate hash and wildcard tables. This better models the
677 current implementation.
678 - New experimental "note" action.
679 - New "ofproto/trace" ovs-appctl command and associated utilities
680 to ease debugging complex flow tables.
682 - Schema documentation now includes an entity-relationship diagram.
683 - The database is now garbage collected. In most tables,
684 unreferenced rows will be deleted automatically.
685 - Many tables now include statistics updated periodically by
686 ovs-vswitchd or ovsdb-server.
687 - Every table now has an "external-ids" column for use by OVS
689 - There is no default controller anymore. Each bridge must have its
690 controller individually specified.
691 - The "fail-mode" is now a property of a Bridge instead of a Controller.
692 - New versioning and checksum features.
693 - New Managers table and manager_options column in Open_vSwitch table
694 for specifying managers. The old "managers" column in the
695 Open_vSwitch table has been removed.
696 - Many "name" columns are now immutable.
698 - Dropped support for XenServer pre-5.6.100.
699 - Dropped support for Linux pre-2.6.18.
700 - Dropped controller discovery support.
701 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
702 Statistics reporting in the database is a rough equivalent.
703 - Dropped the "corekeeper" package (now separate, at
704 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
705 - Performance and scalability improvements
708 v1.1.0pre2 - 13 Sep 2010
709 ------------------------
712 v1.1.0pre1 - 31 Aug 2010
713 ------------------------
714 - OpenFlow 1.0 slicing (QoS) functionality
715 - Python bindings for configuration database (no write support)
716 - Performance and scalability improvements
721 - New "patch" interface type
726 - Configuration database with remote management
729 - Support for XenServer 5.5 and 5.6
730 - Performance and scalability improvements
733 v0.99.2 - 18 Feb 2010
734 ---------------------
737 v0.99.1 - 25 Jan 2010
738 ---------------------
739 - Add support for sFlow(R)
740 - Make headers compatible with C++
743 v0.99.0 - 14 Jan 2010
744 ---------------------
745 - User-space forwarding engine
748 v0.90.7 - 29 Nov 2009
749 ---------------------
750 - Add support for NetFlow active timeouts
757 v0.90.5 - 21 Sep 2009
758 ---------------------
759 - Generalize in-band control to more diverse network setups
projects / cascardo / ovs.git / blob