2 ------------------------
3 - kernel modules are renamed. openvswitch_mod.ko is now
4 openvswitch.ko and brcompat_mod.ko is now brcompat.ko.
5 - Increased the number of NXM registers to 8.
6 - Added ability to configure dscp setting for manager and controller
7 connections. By default, these connections have a DSCP value of
8 Internetwork Control (0xc0).
9 - Added the granular link health statistics, 'cfm_health', to an
14 ------------------------
16 - LACP bonds no longer fall back to balance-slb when negotiations fail.
17 Instead they drop traffic.
18 - The default bond_mode changed from SLB to active-backup, to protect
19 unsuspecting users from the significant risks of SLB bonds (which are
20 documented in vswitchd/INTERNALS).
21 - Load balancing can be disabled by setting the bond-rebalance-interval
24 - Added support for bitwise matching on TCP and UDP ports.
25 See ovs-ofctl(8) for more information.
26 - NXM flow dumps now include times elapsed toward idle and hard
28 - Added an OpenFlow extension NXT_SET_ASYNC_CONFIG that allows
29 controllers more precise control over which OpenFlow messages they
30 receive asynchronously.
31 - New "fin_timeout" action.
32 - Added "fin_timeout" support to "learn" action.
33 - New Nicira action NXAST_CONTROLLER that offers additional features
34 over output to OFPP_CONTROLLER.
35 - The default MAC learning timeout has been increased from 60 seconds
36 to 300 seconds. The MAC learning timeout is now configurable.
37 - When QoS settings for an interface do not configure a default queue
38 (queue 0), Open vSwitch now uses a default configuration for that
39 queue, instead of dropping all packets as in previous versions.
41 - Logging to console and file will have UTC timestamp as a default for
42 all the daemons. An example of the default format is
43 2012-01-27T16:35:17Z. ovs-appctl can be used to change the default
45 - The syntax of commands and options to set log levels was simplified,
46 to make it easier to remember.
47 - New support for limiting the number of flows in an OpenFlow flow
48 table, with configurable policy for evicting flows upon
49 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
51 - New "enable-async-messages" column in the Controller table. If set to
52 false, OpenFlow connections to the controller will initially have all
53 asynchronous messages disabled, overriding normal OpenFlow behavior.
54 - ofproto-provider interface:
55 - "struct rule" has a new member "used" that ofproto implementations
56 should maintain by updating with ofproto_rule_update_used().
58 - The new option --timestamp causes the "monitor" command to print
59 a timestamp with every update.
60 - CFM module CCM broadcasts can now be tagged with an 802.1p priority.
64 ------------------------
66 - Added support for querying, modifying, and deleting flows
67 based on flow cookie when using NXM.
68 - Added new NXM_PACKET_IN format.
69 - Added new NXAST_DEC_TTL action.
71 - Added daemonization support to the monitor and snoop commands.
73 - The "find" command supports new set relational operators
74 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
75 - ovsdb-tool now uses the typical database and schema installation
76 directories as defaults.
80 ------------------------
81 - Compatible with Open vSwitch kernel module included in Linux 3.3.
82 - New "VLAN splinters" feature to work around buggy device drivers
83 in old Linux versions. (This feature is deprecated. When
84 broken device drivers are no longer in widespread use, we will
85 delete this feature.) See ovs-vswitchd.conf.db(5) for more
88 - Added ability to match on IPv6 flow label through NXM.
89 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
90 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
91 - Added ability to modify ECN bits in IPv4.
92 - Added ability to modify TTL in IPv4.
94 - Don't require the "normal" action to use mirrors. Traffic will
95 now be properly mirrored for any flows, regardless of their
97 - Track packet and byte statistics sent on mirrors.
98 - The sFlow implementation can now usually infer the correct agent
99 device instead of having to be told explicitly.
101 - New "fdb/flush" command to flush bridge's MAC learning table.
103 - A new distributed testing tool that allows one to diagnose performance
104 and connectivity issues. This tool currently is not included in RH or
106 - RHEL packaging now supports integration with Red Hat network scripts.
108 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
109 to active-backup. SLB bonds carry significant risks with them
110 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
111 users from running into. Users are advised to update any scripts or
112 configuration which may be negatively impacted by explicitly setting
113 the bond mode which they want to use.
117 ------------------------
119 - Added an OpenFlow extension which allows the "output" action to accept
121 - Added an OpenFlow extension for flexible learning.
122 - Bumped number of NXM registers from four to five.
124 - New "version" command to determine version of running daemon.
125 - If no argument is provided for "cfm/show", displays detailed
126 information about all interfaces with CFM enabled.
127 - If no argument is provided for "lacp/show", displays detailed
128 information about all ports with LACP enabled.
130 - New "set-if" command to modify a datapath port's configuration.
132 - The software switch now supports 255 OpenFlow tables, instead
133 of just one. By default, only table 0 is consulted, but the
134 new NXAST_RESUBMIT_TABLE action can look up in additional
135 tables. Tables 128 and above are reserved for use by the
136 switch itself; please use only tables 0 through 127.
137 - Add support for 802.1D spanning tree (STP).
138 - Fragment handling extensions:
139 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
140 fields are made available for matching in fragments with
142 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
143 via "ip_frag" in ovs-ofctl).
144 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
145 fragment handling policy.
146 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
147 By default it remains compatible with the old version and other
148 standards-based implementations.
149 - Flow setups are now processed in a round-robin manner across ports
150 to prevent any single client from monopolizing the CPU and conducting
151 a denial of service attack.
152 - Added support for native VLAN tagging. A new "vlan_mode"
153 parameter can be set for "port". Possible values: "access",
154 "trunk", "native-tagged" and "native-untagged".
155 - test-openflowd has been removed. Please use ovs-vswitchd instead.
158 ------------------------
159 - New "ofproto" abstraction layer to ease porting to hardware
161 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
162 - Datapath support for Linux kernels up to 3.0.
164 - New "bundle" and "bundle_load" action extensions.
166 - Implement table unique constraints.
167 - Support cooperative locking between callers.
169 - New "-s" option for "show" command prints packet and byte
170 counters for each port.
172 - New "--readd" option for "replace-flows".
174 - New "show" command to print an overview of configuration.
175 - New "comment" command to add remark that explains intentions.
176 - ovs-brcompatd has been rewritten to fix long-standing bugs.
177 - ovs-openflowd has been renamed test-openflowd and moved into the
178 tests directory. Its presence confused too many users. Please
179 use ovs-vswitchd instead.
180 - New ovs-benchmark utility to test flow setup performance.
181 - A new log level "off" has been added. Configuring a log facility
182 "off" prevents any messages from being logged to it. Previously,
183 "emer" was effectively "off" because no messages were ever logged at
184 level "emer". Now, errors that cause a process to exit are logged
186 - "configure" option --with-l26 has been renamed --with-linux, and
187 --with-l26-source has been renamed --with-linux-source. The old
188 names will be removed after the next release, so please update
190 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
191 datapath/linux-2.6/compat-2.6 directories.
193 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
194 Please use the extensible match extensions instead.
195 - Removed the Maintenance_Point and Monitor tables in an effort
196 to simplify 802.1ag configuration.
197 - Performance and scalability improvements
201 ------------------------
202 - Ability to define policies over IPv6
205 - Support for extensible match extensions to OpenFlow
207 - Support for HFSC qdisc.
208 - Queue used by in-band control can now be configured.
210 - Kernel<->userspace interface has been reworked and should be
211 close to a stable ABI now.
212 - "Port group" concept has been dropped.
213 - GRE over IPSEC tunnels
215 - New active backup bonding mode.
216 - New L4 hashing support when LACP is enabled.
217 - Source MAC hash now includes VLAN field also.
219 - Greatly improved handling of large flow tables
221 - "show" command now prints full vport configuration.
222 - "dump-groups" command removed since kernel support for
223 port groups was dropped.
225 - New commands for working with the new Managers table.
226 - "list" command enhanced with new formatting options and --columns
228 - "get" command now accepts new --id option.
229 - New "find" command.
231 - New "queue-stats" command for printing queue stats.
232 - New commands "replace-flows" and "diff-flows".
233 - Commands to add and remove flows can now read from files.
234 - New --flow-format option to enable or disable NXM.
235 - New --more option to increase OpenFlow message verbosity.
236 - Removed "tun-cookie" command, which is no longer useful.
237 - ovs-controller enhancements for testing various features.
238 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
239 bugs. New ovs-vlan-bug-workaround command for enabling and
240 disabling a workaround for these driver bugs.
242 - "Resubmit" actions now update flow statistics.
243 - New "register" extension for use in matching and actions, via NXM.
244 - New "multipath" experimental action extension.
245 - New support for matching multicast Ethernet frames, via NXM.
246 - New extension for OpenFlow vendor error codes.
247 - New extension to set the QoS output queue without actually
248 sending to an output port.
249 - Open vSwitch now reports a single flow table, instead of
250 separate hash and wildcard tables. This better models the
251 current implementation.
252 - New experimental "note" action.
253 - New "ofproto/trace" ovs-appctl command and associated utilities
254 to ease debugging complex flow tables.
256 - Schema documentation now includes an entity-relationship diagram.
257 - The database is now garbage collected. In most tables,
258 unreferenced rows will be deleted automatically.
259 - Many tables now include statistics updated periodically by
260 ovs-vswitchd or ovsdb-server.
261 - Every table now has an "external-ids" column for use by OVS
263 - There is no default controller anymore. Each bridge must have its
264 controller individually specified.
265 - The "fail-mode" is now a property of a Bridge instead of a Controller.
266 - New versioning and checksum features.
267 - New Managers table and manager_options column in Open_vSwitch table
268 for specifying managers. The old "managers" column in the
269 Open_vSwitch table has been removed.
270 - Many "name" columns are now immutable.
272 - Dropped support for XenServer pre-5.6.100.
273 - Dropped support for Linux pre-2.6.18.
274 - Dropped controller discovery support.
275 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
276 Statistics reporting in the database is a rough equivalent.
277 - Dropped the "corekeeper" package (now separate, at
278 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
279 - Performance and scalability improvements
282 v1.1.0pre2 - 13 Sep 2010
283 ------------------------
286 v1.1.0pre1 - 31 Aug 2010
287 ------------------------
288 - OpenFlow 1.0 slicing (QoS) functionality
289 - Python bindings for configuration database (no write support)
290 - Performance and scalability improvements
295 - New "patch" interface type
300 - Configuration database with remote management
303 - Support for XenServer 5.5 and 5.6
304 - Performance and scalability improvements
307 v0.99.2 - 18 Feb 2010
308 ---------------------
311 v0.99.1 - 25 Jan 2010
312 ---------------------
313 - Add support for sFlow(R)
314 - Make headers compatible with C++
317 v0.99.0 - 14 Jan 2010
318 ---------------------
319 - User-space forwarding engine
322 v0.90.7 - 29 Nov 2009
323 ---------------------
324 - Add support for NetFlow active timeouts
331 v0.90.5 - 21 Sep 2009
332 ---------------------
333 - Generalize in-band control to more diverse network setups
projects / openvswitch / blob