3 - Added support for SFQ, FQ_CoDel and CoDel qdiscs.
4 - Add bash command-line completion support for ovs-vsctl Please check
5 utilities/ovs-command-compgen.INSTALL.md for how to use.
6 - The MAC learning feature now includes per-port fairness to mitigate
8 - New support for a "conjunctive match" OpenFlow extension, which
9 allows constructing OpenFlow matches of the form "field1 in
10 {a,b,c...} AND field2 in {d,e,f...}" and generalizations. For details,
11 see documentation for the "conjunction" action in ovs-ofctl(8).
12 - Add bash command-line completion support for ovs-appctl/ovs-dpctl/
13 ovs-ofctl/ovsdb-tool commands. Please check
14 utilities/ovs-command-compgen.INSTALL.md for how to use.
15 - The "learn" action supports a new flag "delete_learned" that causes
16 the learned flows to be deleted when the flow with the "learn" action
18 - Basic support for the Geneve tunneling protocol. It is not yet
19 possible to generate or match options. This is planned for a future
20 release. The protocol is documented at
21 http://tools.ietf.org/html/draft-gross-geneve-00
22 - The OVS database now reports controller rate limiting statistics.
23 - sflow now exports information about LACP-based bonds, port names, and
24 OpenFlow port numbers, as well as datapath performance counters.
25 - ovs-dpctl functionality is now available for datapaths integrated
26 into ovs-vswitchd, via ovs-appctl. Some existing ovs-appctl
27 commands are now redundant and will be removed in a future
28 release. See ovs-vswitchd(8) for details.
30 * IPv6 flow label and neighbor discovery fields are now modifiable.
31 * OpenFlow 1.5 extended registers are now supported.
32 * The OpenFlow 1.5 actset_output field is now supported.
33 * OpenFlow 1.5 Copy-Field action is now supported.
34 * OpenFlow 1.5 masked Set-Field action is now supported.
35 * OpenFlow 1.3+ table features requests are now supported (read-only).
36 * Nicira extension "move" actions may now be included in action sets.
37 * "resubmit" actions may now be included in action sets. The resubmit
38 is executed last, and only if the action set has no "output" or "group"
40 * OpenFlow 1.4+ flow "importance" is now maintained in the flow table.
41 * A new Netronome extension to OpenFlow 1.5+ allows control over the
42 fields hashed for OpenFlow select groups. See "selection_method" and
43 related options in ovs-ofctl(8) for details.
44 - ovs-pki: Changed message digest algorithm from MD5 to SHA-1 because
45 MD5 is no longer secure and some operating systems have started to disable
47 - ovsdb-server: New OVSDB protocol extension allows inequality tests on
48 "optional scalar" columns. See ovsdb-server(1) for details.
49 - ovs-vsctl now permits immutable columns in a new row to be modified in
50 the same transaction that creates the row.
51 - test-controller has been renamed ovs-testcontroller at request of users
52 who find it useful for testing basic OpenFlow setups. It is still not
53 a necessary or desirable part of most Open vSwitch deployments.
54 - Support for travis-ci.org based continuous integration builds has been
55 added. Build failures are reported to build@openvswitch.org. See INSTALL.md
56 file for additional details.
57 - Support for the Rapid Spanning Tree Protocol (IEEE 802.1D-2004).
58 The implementation has been tested successfully against the Ixia Automated
59 Network Validation Library (ANVL).
60 - Stats are no longer updated on fake bond interface.
61 - Keep active bond slave selection across OVS restart.
62 - A simple wrapper script, 'ovs-docker', to integrate OVS with Docker
63 containers. If and when there is a native integration of Open vSwitch
64 with Docker, the wrapper script will be retired.
65 - Added support for DPDK Tunneling. VXLAN, GRE, and Geneve are supported
66 protocols. This is generic tunneling mechanism for userspace datapath.
67 - Support for multicast snooping (IGMPv1 and IGMPv2)
68 - Support for Linux kernels up to 3.19.x
69 - The documentation now use the term 'destination' to mean one of syslog,
70 console or file for vlog logging instead of the previously used term
72 - Support for VXLAN Group Policy extension
73 - Initial support for the IETF Auto-Attach SPBM draft standard. This
74 contains rudimentary support for the LLDP protocol as needed for
76 - The default OpenFlow and OVSDB ports are now the IANA-assigned
77 numbers. OpenFlow is 6653 and OVSDB is 6640.
78 - Support for DPDK vHost.
79 - Support for outer UDP checksums in Geneve and VXLAN.
80 - The kernel vports with dependencies are no longer part of the overall
81 openvswitch.ko but built and loaded automatically as individual kernel
87 - OpenFlow 1.1, 1.2, and 1.3 are now enabled by default in
89 - Linux kernel datapath now has an exact match cache optimizing the
90 flow matching process.
91 - Datapath flows now have partially wildcarded tranport port field
92 matches. This reduces userspace upcalls, but increases the
93 number of different masks in the datapath. The kernel datapath
94 exact match cache removes the overhead of matching the incoming
95 packets with the larger number of masks, but when paired with an
96 older kernel module, some workloads may perform worse with the
98 - Compatibility with autoconf 2.63 (previously >=2.64)
100 v2.2.0 - Internal Release
101 ---------------------
102 - Internal ports are no longer brought up by default, because it
103 should be an administrator task to bring up devices as they are
105 - ovs-vsctl now reports when ovs-vswitchd fails to create a new port or
107 - Port creation and configuration errors are now stored in a new error
108 column of the Interface table and included in 'ovs-vsctl show'.
109 - The "ovsdbmonitor" graphical tool has been removed, because it was
110 poorly maintained and not widely used.
111 - New "check-ryu" Makefile target for running Ryu tests for OpenFlow
112 controllers against Open vSwitch. See INSTALL.md for details.
113 - Added IPFIX support for SCTP flows and templates for ICMPv4/v6 flows.
114 - Upon the receipt of a SIGHUP signal, ovs-vswitchd no longer reopens its
115 log file (it will terminate instead). Please use 'ovs-appctl vlog/reopen'
117 - Support for Linux kernels up to 3.14. From Kernel 3.12 onwards OVS uses
118 tunnel API for GRE and VXLAN.
119 - Added DPDK support.
120 - Added support for custom vlog patterns in Python
124 ---------------------
125 - Address prefix tracking support for flow tables. New columns
126 "prefixes" in OVS-DB table "Flow_Table" controls which packet
127 header fields are used for address prefix tracking. Prefix
128 tracking allows the classifier to skip rules with longer than
129 necessary prefixes, resulting in better wildcarding for datapath
130 flows. Default configuration is to not use any fields for prefix
131 tracking. However, if any flow tables contain both exact matches
132 and masked matches for IP address fields, OVS performance may be
133 increased by using this feature.
134 * As of now, the fields for which prefix lookup can be enabled
135 are: 'tun_id', 'tun_src', 'tun_dst', 'nw_src', 'nw_dst' (or
136 aliases 'ip_src' and 'ip_dst'), 'ipv6_src', and 'ipv6_dst'.
137 (Using this feature for 'tun_id' would only make sense if the
138 tunnel IDs have prefix structure similar to IP addresses.)
139 * There is a maximum number of fields that can be enabled for any
140 one flow table. Currently this limit is 3.
142 $ ovs-vsctl set Bridge br0 flow_tables:0=@N1 -- \
143 --id=@N1 create Flow_Table name=table0
144 $ ovs-vsctl set Bridge br0 flow_tables:1=@N1 -- \
145 --id=@N1 create Flow_Table name=table1
146 $ ovs-vsctl set Flow_Table table0 prefixes=ip_dst,ip_src
147 $ ovs-vsctl set Flow_Table table1 prefixes=[]
148 - TCP flags matching: OVS now supports matching of TCP flags. This
149 has an adverse performance impact when using OVS userspace 1.10
150 or older (no megaflows support) together with the new OVS kernel
151 module. It is recommended that the kernel and userspace modules
152 both are upgraded at the same time.
153 - The default OpenFlow and OVSDB ports will change to
154 IANA-assigned numbers in a future release. Consider updating
155 your installations to specify port numbers instead of using the
158 * The OpenFlow 1.1+ "Write-Actions" instruction is now supported.
159 * OVS limits the OpenFlow port numbers it assigns to port 32767 and
160 below, leaving port numbers above that range free for assignment
162 * ovs-vswitchd now honors changes to the "ofport_request" column
163 in the Interface table by changing the port's OpenFlow port
165 * The Open vSwitch software switch now supports OpenFlow groups.
166 - ovs-vswitchd.conf.db.5 man page will contain graphviz/dot
167 diagram only if graphviz package was installed at the build time.
168 - Support for Linux kernels up to 3.11
170 The "show" command also displays mega flow mask stats.
172 * New command "ofp-parse-pcap" to dump OpenFlow from PCAP files.
173 - ovs-controller has been renamed test-controller. It is no longer
174 packaged or installed by default, because too many users assumed
175 incorrectly that ovs-controller was a necessary or desirable part
176 of an Open vSwitch deployment.
177 - Added vlog option to export to a UDP syslog sink.
179 * The "monitor" command can now monitor all tables in a database,
180 instead of being limited to a single table.
181 - The flow-eviction-threshold has been replaced by the flow-limit which is a
182 hard limit on the number of flows in the datapath. It defaults to 200,000
183 flows. OVS automatically adjusts this number depending on network
185 - Added IPv6 support for active and passive socket communications.
189 ---------------------
190 - The ovs-vswitchd process is no longer single-threaded. Multiple
191 threads are now used to handle flow set up and asynchronous
194 * Experimental support for OpenFlow 1.1 (in addition to 1.2 and
195 1.3, which had experimental support in 1.10).
196 * Experimental protocol support for OpenFlow 1.1+ groups. This
197 does not yet include an implementation in the Open vSwitch
199 * Experimental protocol support for OpenFlow 1.2+ meters. This
200 does not yet include an implementation in the Open vSwitch
202 * New support for matching outer source and destination IP address
203 of tunneled packets, for tunnel ports configured with the newly
204 added "remote_ip=flow" and "local_ip=flow" options.
205 * Support for matching on metadata 'pkt_mark' for interacting with
206 other system components. On Linux this corresponds to the skb
208 * Support matching, rewriting SCTP ports
209 - The Interface table in the database has a new "ifindex" column to
210 report the interface's OS-assigned ifindex.
211 - New "check-oftest" Makefile target for running OFTest against Open
212 vSwitch. See README-OFTest for details.
213 - The flow eviction threshold has been moved to the Open_vSwitch table.
214 - Database names are now mandatory when specifying ovsdb-server options
215 through database paths (e.g. Private key option with the database name
216 should look like "--private-key=db:Open_vSwitch,SSL,private_key").
217 - Added ovs-dev.py, a utility script helpful for Open vSwitch developers.
218 - Support for Linux kernels up to 3.10
220 * New "ofp-parse" for printing OpenFlow messages read from a file.
221 * New commands for OpenFlow 1.1+ groups.
222 - Added configurable flow caching support to IPFIX exporter.
223 - Dropped support for Linux pre-2.6.32.
224 - Log file timestamps and ovsdb commit timestamps are now reported
225 with millisecond resolution. (Previous versions only reported
229 v1.11.0 - 28 Aug 2013
230 ---------------------
231 - Support for megaflows, which allows wildcarding in the kernel (and
232 any dpif implementation that supports wildcards). Depending on
233 the flow table and switch configuration, flow set up rates are
234 close to the Linux bridge.
235 - The "tutorial" directory contains a new tutorial for some advanced
236 Open vSwitch features.
237 - Stable bond mode has been removed.
238 - The autopath action has been removed.
239 - New support for the data encapsulation format of the LISP tunnel
240 protocol (RFC 6830). An external control plane or manual flow
241 setup is required for EID-to-RLOC mapping.
243 * The "dec_mpls_ttl" and "set_mpls_ttl" actions from OpenFlow
244 1.1 and later are now implemented.
245 * New "stack" extension for use in actions, to push and pop from
247 * The "load" and "set_field" actions can now modify the "in_port". (This
248 allows one to enable output to a flow's input port by setting the
249 in_port to some unused value, such as OFPP_NONE.)
251 * New debugging commands "add-flow", "mod-flow", "del-flow".
252 * "dump-flows" now has a -m option to increase output verbosity.
253 - In dpif-based bridges, cache action translations, which can improve
254 flow set up performance by 80% with a complicated flow table.
255 - New syslog format, prefixed with "ovs|", to be easier to filter.
256 - RHEL: Removes the default firewall rule that allowed GRE traffic to
257 pass through. Any users that relied on this automatic firewall hole
258 will have to manually configure it. The ovs-ctl(8) manpage documents
259 the "enable-protocol" command that can be used as an alternative.
260 - New CFM demand mode which uses data traffic to indicate interface
263 v1.10.0 - 01 May 2013
264 ---------------------
265 - Bridge compatibility support has been removed. Any uses that
266 rely on ovs-brcompatd will have to stick with Open vSwitch 1.9.x
267 or adapt to native Open vSwitch support (e.g. use ovs-vsctl instead
269 - The maximum size of the MAC learning table is now configurable.
270 - With the Linux datapath, packets for new flows are now queued
271 separately on a per-port basis, so it should no longer be
272 possible for a large number of new flows arriving on one port to
273 prevent new flows from being processed on other ports.
275 * Previously ovs-vsctl would retry connecting to the database forever,
276 causing it to hang if ovsdb-server was not running. Now, ovs-vsctl
277 only tries once by default (use --retry to try forever). This change
278 means that you may want to remove uses of --timeout to avoid hangs
280 * Many "ovs-vsctl" database commands now accept an --if-exists option.
281 Please refer to the ovs-vsctl manpage for details.
283 - Experimental support for newer versions of OpenFlow. See
284 the "What versions of OpenFlow does Open vSwitch support?"
285 question in the FAQ for more details.
286 - The OpenFlow "dp_desc" may now be configured by setting the
287 value of other-config:dp-desc in the Bridge table.
288 - It is possible to request the OpenFlow port number with the
289 "ofport_request" column in the Interface table.
290 - The NXM flow_removed message now reports the OpenFlow table ID
291 from which the flow was removed.
293 - New support for the VXLAN tunnel protocol (see the IETF draft here:
294 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03).
295 - Tunneling requires the version of the kernel module paired with
296 Open vSwitch 1.9.0 or later.
297 - Inheritance of the Don't Fragment bit in IP tunnels (df_inherit)
298 is no longer supported.
299 - Path MTU discovery is no longer supported.
300 - CAPWAP tunneling support removed.
301 - Tunnels with multicast destination ports are no longer supported.
303 - The "dump-flows" and "del-flows" no longer require an argument
304 if only one datapath exists.
306 - New "vlog/disable-rate-limit" and "vlog/enable-rate-limit"
307 commands available allow control over logging rate limits.
308 - New "dpif/dump-dps", "dpif/show", and "dpif/dump-flows" command
309 that mimic the equivalent ovs-dpctl commands.
310 - The ofproto library is now responsible for assigning OpenFlow port
311 numbers. An ofproto implementation should assign them when
312 port_construct() is called.
313 - All dpif-based bridges of a particular type share a common
314 datapath called "ovs-<type>", e.g. "ovs-system". The ovs-dpctl
315 commands will now return information on that shared datapath. To
316 get the equivalent bridge-specific information, use the new
317 "ovs-appctl dpif/*" commands.
318 - Backward-incompatible changes:
319 - Earlier Open vSwitch versions treated ANY as a wildcard in flow
320 syntax. OpenFlow 1.1 adds a port named ANY, which introduces a
321 conflict. ANY was rarely used in flow syntax, so we chose to
322 retire that meaning of ANY in favor of the OpenFlow 1.1 meaning.
323 - Patch ports no longer require kernel support, so they now work
324 with FreeBSD and the kernel module built into Linux 3.3 and later.
325 - New "sample" action.
329 ------------------------
331 - Support for ipv6 set action.
332 - SKB mark matching and setting.
333 - support for Linux kernels up to 3.8
334 - FreeBSD is now a supported platform, thanks to code contributions from
335 Gaetano Catalli, Ed Maste, and Giuseppe Lettieri.
336 - ovs-bugtool: New --ovs option to report only OVS related information.
337 - New %t and %T log escapes to identify the subprogram within a
338 cooperating group of processes or threads that emitted a log message.
339 The default log patterns now include this information.
341 - Allow bitwise masking for SHA and THA fields in ARP, SLL and TLL
342 fields in IPv6 neighbor discovery messages, and IPv6 flow label.
343 - Adds support for writing to the metadata field for a flow.
345 - The tunneling code no longer assumes input and output keys are
346 symmetric. If they are not, PMTUD needs to be disabled for
347 tunneling to work. Note this only applies to flow-based keys.
348 - New support for a nonstandard form of GRE that supports a 64-bit key.
349 - Tunnel Path MTU Discovery default value was set to 'disabled'.
350 This feature is deprecated and will be removed soon.
351 - Tunnel header caching removed.
353 - Commands and actions that accept port numbers now also accept keywords
354 that represent those ports (such as LOCAL, NONE, and ALL). This is
355 also the recommended way to specify these ports, for compatibility
356 with OpenFlow 1.1 and later (which use the OpenFlow 1.0 numbers
357 for these ports for different purposes).
359 - Support requesting the port number with the "port_no" option in
360 the "add-if" command.
361 - ovs-pki: The "online PKI" features have been removed, along with
362 the ovs-pki-cgi program that facilitated it, because of some
363 alarmist insecurity claims. We do not believe that these claims
364 are true, but because we do not know of any users for this
365 feature it seems better on balance to remove it. (The ovs-pki-cgi
366 program was not included in distribution packaging.)
367 - ovsdb-server now enforces the immutability of immutable columns. This
368 was not enforced in earlier versions due to an oversight.
369 - The following features are now deprecated. They will be removed no
370 earlier than February 2013. Please email dev@openvswitch.org with
372 - Bridge compatibility.
374 - The autopath action.
375 - Interface type "null".
376 - Numeric values for reserved ports (see "ovs-ofctl" note above).
377 - Tunnel Path MTU Discovery.
378 - CAPWAP tunnel support.
379 - The data in the RARP packets can now be matched in the same way as the
384 ------------------------
385 *** Internal only release ***
386 - New FAQ. Please send updates and additions!
387 - Authors of controllers, please read the new section titled "Action
388 Reproduction" in DESIGN, which describes an Open vSwitch change in
389 behavior in corner cases that may affect some controllers.
391 - A new test utility that can create L3 tunnel between two Open
392 vSwitches and detect connectivity issues.
394 - New --sort and --rsort options for "dump-flows" command.
395 - "mod-port" command can now control all OpenFlow config flags.
397 - Allow general bitwise masking for IPv4 and IPv6 addresses in
398 IPv4, IPv6, and ARP packets. (Previously, only CIDR masks
400 - Allow support for arbitrary Ethernet masks. (Previously, only
401 the multicast bit in the destination address could be individually
403 - New field OXM_OF_METADATA, to align with OpenFlow 1.1.
404 - The OFPST_QUEUE request now reports an error if a specified port or
405 queue does not exist, or for requests for a specific queue on all
406 ports, if the specified queue does not exist on any port. (Previous
407 versions generally reported an empty set of results.)
408 - New "flow monitor" feature to allow controllers to be notified of
409 flow table changes as they happen.
410 - Additional protocols are not mirrored and dropped when forward-bpdu is
411 false. For a full list, see the ovs-vswitchd.conf.db man page.
412 - Open vSwitch now sends RARP packets in situations where it previously
413 sent a custom protocol, making it consistent with behavior of QEMU and
415 - All Open vSwitch programs and log files now show timestamps in UTC,
416 instead the local timezone, by default.
420 ------------------------
421 - kernel modules are renamed. openvswitch_mod.ko is now
422 openvswitch.ko and brcompat_mod.ko is now brcompat.ko.
423 - Increased the number of NXM registers to 8.
424 - Added ability to configure DSCP setting for manager and controller
425 connections. By default, these connections have a DSCP value of
426 Internetwork Control (0xc0).
427 - Added the granular link health statistics, 'cfm_health', to an
430 - Added support to mask nd_target for ICMPv6 neighbor discovery flows.
431 - Added support for OpenFlow 1.3 port description (OFPMP_PORT_DESC)
434 - Added the "dump-ports-desc" command to retrieve port
435 information using the new port description multipart messages.
437 - Added support for spawning ovs-test server from the client.
438 - Now ovs-test is able to automatically create test bridges and ports.
439 - "ovs-dpctl dump-flows" now prints observed TCP flags in TCP flows.
440 - Tripled flow setup performance.
441 - The "coverage/log" command previously available through ovs-appctl
442 has been replaced by "coverage/show". The new command replies with
443 coverage counter values, instead of logging them.
447 ------------------------
448 - Allow OFPP_CONTROLLER as the in_port for packet-out messages.
452 ------------------------
453 *** Internal only release ***
455 - LACP bonds no longer fall back to balance-slb when negotiations fail.
456 Instead they drop traffic.
457 - The default bond_mode changed from SLB to active-backup, to protect
458 unsuspecting users from the significant risks of SLB bonds (which are
459 documented in vswitchd/INTERNALS).
460 - Load balancing can be disabled by setting the bond-rebalance-interval
463 - Added support for bitwise matching on TCP and UDP ports.
464 See ovs-ofctl(8) for more information.
465 - NXM flow dumps now include times elapsed toward idle and hard
467 - Added an OpenFlow extension NXT_SET_ASYNC_CONFIG that allows
468 controllers more precise control over which OpenFlow messages they
469 receive asynchronously.
470 - New "fin_timeout" action.
471 - Added "fin_timeout" support to "learn" action.
472 - New Nicira action NXAST_CONTROLLER that offers additional features
473 over output to OFPP_CONTROLLER.
474 - When QoS settings for an interface do not configure a default queue
475 (queue 0), Open vSwitch now uses a default configuration for that
476 queue, instead of dropping all packets as in previous versions.
478 - Logging to console and file will have UTC timestamp as a default for
479 all the daemons. An example of the default format is
480 2012-01-27T16:35:17Z. ovs-appctl can be used to change the default
482 - The syntax of commands and options to set log levels was simplified,
483 to make it easier to remember.
484 - New support for limiting the number of flows in an OpenFlow flow
485 table, with configurable policy for evicting flows upon
486 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
487 for more information.
488 - New "enable-async-messages" column in the Controller table. If set to
489 false, OpenFlow connections to the controller will initially have all
490 asynchronous messages disabled, overriding normal OpenFlow behavior.
491 - ofproto-provider interface:
492 - "struct rule" has a new member "used" that ofproto implementations
493 should maintain by updating with ofproto_rule_update_used().
495 - The new option --timestamp causes the "monitor" command to print
496 a timestamp with every update.
497 - CFM module CCM broadcasts can now be tagged with an 802.1p priority.
501 ------------------------
503 - Added support for querying, modifying, and deleting flows
504 based on flow cookie when using NXM.
505 - Added new NXM_PACKET_IN format.
506 - Added new NXAST_DEC_TTL action.
508 - Added daemonization support to the monitor and snoop commands.
510 - The "find" command supports new set relational operators
511 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
512 - ovsdb-tool now uses the typical database and schema installation
513 directories as defaults.
514 - The default MAC learning timeout has been increased from 60 seconds
515 to 300 seconds. The MAC learning timeout is now configurable.
519 ------------------------
520 - Compatible with Open vSwitch kernel module included in Linux 3.3.
521 - New "VLAN splinters" feature to work around buggy device drivers
522 in old Linux versions. (This feature is deprecated. When
523 broken device drivers are no longer in widespread use, we will
524 delete this feature.) See ovs-vswitchd.conf.db(5) for more
527 - Added ability to match on IPv6 flow label through NXM.
528 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
529 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
530 - Added ability to modify ECN bits in IPv4.
531 - Added ability to modify TTL in IPv4.
533 - Don't require the "normal" action to use mirrors. Traffic will
534 now be properly mirrored for any flows, regardless of their
536 - Track packet and byte statistics sent on mirrors.
537 - The sFlow implementation can now usually infer the correct agent
538 device instead of having to be told explicitly.
540 - New "fdb/flush" command to flush bridge's MAC learning table.
542 - A new distributed testing tool that allows one to diagnose performance
543 and connectivity issues. This tool currently is not included in RH or
545 - RHEL packaging now supports integration with Red Hat network scripts.
547 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
548 to active-backup. SLB bonds carry significant risks with them
549 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
550 users from running into. Users are advised to update any scripts or
551 configuration which may be negatively impacted by explicitly setting
552 the bond mode which they want to use.
556 ------------------------
558 - Added an OpenFlow extension which allows the "output" action to accept
560 - Added an OpenFlow extension for flexible learning.
561 - Bumped number of NXM registers from four to five.
563 - New "version" command to determine version of running daemon.
564 - If no argument is provided for "cfm/show", displays detailed
565 information about all interfaces with CFM enabled.
566 - If no argument is provided for "lacp/show", displays detailed
567 information about all ports with LACP enabled.
569 - New "set-if" command to modify a datapath port's configuration.
571 - The software switch now supports 255 OpenFlow tables, instead
572 of just one. By default, only table 0 is consulted, but the
573 new NXAST_RESUBMIT_TABLE action can look up in additional
574 tables. Tables 128 and above are reserved for use by the
575 switch itself; please use only tables 0 through 127.
576 - Add support for 802.1D spanning tree (STP).
577 - Fragment handling extensions:
578 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
579 fields are made available for matching in fragments with
581 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
582 via "ip_frag" in ovs-ofctl).
583 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
584 fragment handling policy.
585 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
586 By default it remains compatible with the old version and other
587 standards-based implementations.
588 - Flow setups are now processed in a round-robin manner across ports
589 to prevent any single client from monopolizing the CPU and conducting
590 a denial of service attack.
591 - Added support for native VLAN tagging. A new "vlan_mode"
592 parameter can be set for "port". Possible values: "access",
593 "trunk", "native-tagged" and "native-untagged".
594 - test-openflowd has been removed. Please use ovs-vswitchd instead.
597 ------------------------
598 - New "ofproto" abstraction layer to ease porting to hardware
600 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
601 - Datapath support for Linux kernels up to 3.0.
603 - New "bundle" and "bundle_load" action extensions.
605 - Implement table unique constraints.
606 - Support cooperative locking between callers.
608 - New "-s" option for "show" command prints packet and byte
609 counters for each port.
611 - New "--readd" option for "replace-flows".
613 - New "show" command to print an overview of configuration.
614 - New "comment" command to add remark that explains intentions.
615 - ovs-brcompatd has been rewritten to fix long-standing bugs.
616 - ovs-openflowd has been renamed test-openflowd and moved into the
617 tests directory. Its presence confused too many users. Please
618 use ovs-vswitchd instead.
619 - New ovs-benchmark utility to test flow setup performance.
620 - A new log level "off" has been added. Configuring a log facility
621 "off" prevents any messages from being logged to it. Previously,
622 "emer" was effectively "off" because no messages were ever logged at
623 level "emer". Now, errors that cause a process to exit are logged
625 - "configure" option --with-l26 has been renamed --with-linux, and
626 --with-l26-source has been renamed --with-linux-source. The old
627 names will be removed after the next release, so please update
629 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
630 datapath/linux-2.6/compat-2.6 directories.
632 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
633 Please use the extensible match extensions instead.
634 - Removed the Maintenance_Point and Monitor tables in an effort
635 to simplify 802.1ag configuration.
636 - Performance and scalability improvements
640 ------------------------
641 - Ability to define policies over IPv6
644 - Support for extensible match extensions to OpenFlow
646 - Support for HFSC qdisc.
647 - Queue used by in-band control can now be configured.
649 - Kernel<->userspace interface has been reworked and should be
650 close to a stable ABI now.
651 - "Port group" concept has been dropped.
652 - GRE over IPSEC tunnels
654 - New active backup bonding mode.
655 - New L4 hashing support when LACP is enabled.
656 - Source MAC hash now includes VLAN field also.
658 - Greatly improved handling of large flow tables
660 - "show" command now prints full vport configuration.
661 - "dump-groups" command removed since kernel support for
662 port groups was dropped.
664 - New commands for working with the new Managers table.
665 - "list" command enhanced with new formatting options and --columns
667 - "get" command now accepts new --id option.
668 - New "find" command.
670 - New "queue-stats" command for printing queue stats.
671 - New commands "replace-flows" and "diff-flows".
672 - Commands to add and remove flows can now read from files.
673 - New --flow-format option to enable or disable NXM.
674 - New --more option to increase OpenFlow message verbosity.
675 - Removed "tun-cookie" command, which is no longer useful.
676 - ovs-controller enhancements for testing various features.
677 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
678 bugs. New ovs-vlan-bug-workaround command for enabling and
679 disabling a workaround for these driver bugs.
681 - "Resubmit" actions now update flow statistics.
682 - New "register" extension for use in matching and actions, via NXM.
683 - New "multipath" experimental action extension.
684 - New support for matching multicast Ethernet frames, via NXM.
685 - New extension for OpenFlow vendor error codes.
686 - New extension to set the QoS output queue without actually
687 sending to an output port.
688 - Open vSwitch now reports a single flow table, instead of
689 separate hash and wildcard tables. This better models the
690 current implementation.
691 - New experimental "note" action.
692 - New "ofproto/trace" ovs-appctl command and associated utilities
693 to ease debugging complex flow tables.
695 - Schema documentation now includes an entity-relationship diagram.
696 - The database is now garbage collected. In most tables,
697 unreferenced rows will be deleted automatically.
698 - Many tables now include statistics updated periodically by
699 ovs-vswitchd or ovsdb-server.
700 - Every table now has an "external-ids" column for use by OVS
702 - There is no default controller anymore. Each bridge must have its
703 controller individually specified.
704 - The "fail-mode" is now a property of a Bridge instead of a Controller.
705 - New versioning and checksum features.
706 - New Managers table and manager_options column in Open_vSwitch table
707 for specifying managers. The old "managers" column in the
708 Open_vSwitch table has been removed.
709 - Many "name" columns are now immutable.
711 - Dropped support for XenServer pre-5.6.100.
712 - Dropped support for Linux pre-2.6.18.
713 - Dropped controller discovery support.
714 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
715 Statistics reporting in the database is a rough equivalent.
716 - Dropped the "corekeeper" package (now separate, at
717 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
718 - Performance and scalability improvements
721 v1.1.0pre2 - 13 Sep 2010
722 ------------------------
725 v1.1.0pre1 - 31 Aug 2010
726 ------------------------
727 - OpenFlow 1.0 slicing (QoS) functionality
728 - Python bindings for configuration database (no write support)
729 - Performance and scalability improvements
734 - New "patch" interface type
739 - Configuration database with remote management
742 - Support for XenServer 5.5 and 5.6
743 - Performance and scalability improvements
746 v0.99.2 - 18 Feb 2010
747 ---------------------
750 v0.99.1 - 25 Jan 2010
751 ---------------------
752 - Add support for sFlow(R)
753 - Make headers compatible with C++
756 v0.99.0 - 14 Jan 2010
757 ---------------------
758 - User-space forwarding engine
761 v0.90.7 - 29 Nov 2009
762 ---------------------
763 - Add support for NetFlow active timeouts
770 v0.90.5 - 21 Sep 2009
771 ---------------------
772 - Generalize in-band control to more diverse network setups
projects / cascardo / ovs.git / blob