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).
12 ------------------------
14 - LACP bonds no longer fall back to balance-slb when negotiations fail.
15 Instead they drop traffic.
16 - The default bond_mode changed from SLB to active-backup, to protect
17 unsuspecting users from the significant risks of SLB bonds (which are
18 documented in vswitchd/INTERNALS).
19 - Load balancing can be disabled by setting the bond-rebalance-interval
22 - Added support for bitwise matching on TCP and UDP ports.
23 See ovs-ofctl(8) for more information.
24 - NXM flow dumps now include times elapsed toward idle and hard
26 - Added an OpenFlow extension NXT_SET_ASYNC_CONFIG that allows
27 controllers more precise control over which OpenFlow messages they
28 receive asynchronously.
29 - New "fin_timeout" action.
30 - Added "fin_timeout" support to "learn" action.
31 - New Nicira action NXAST_CONTROLLER that offers additional features
32 over output to OFPP_CONTROLLER.
33 - The default MAC learning timeout has been increased from 60 seconds
34 to 300 seconds. The MAC learning timeout is now configurable.
35 - When QoS settings for an interface do not configure a default queue
36 (queue 0), Open vSwitch now uses a default configuration for that
37 queue, instead of dropping all packets as in previous versions.
39 - Logging to console and file will have UTC timestamp as a default for
40 all the daemons. An example of the default format is
41 2012-01-27T16:35:17Z. ovs-appctl can be used to change the default
43 - The syntax of commands and options to set log levels was simplified,
44 to make it easier to remember.
45 - New support for limiting the number of flows in an OpenFlow flow
46 table, with configurable policy for evicting flows upon
47 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
49 - New "enable-async-messages" column in the Controller table. If set to
50 false, OpenFlow connections to the controller will initially have all
51 asynchronous messages disabled, overriding normal OpenFlow behavior.
52 - ofproto-provider interface:
53 - "struct rule" has a new member "used" that ofproto implementations
54 should maintain by updating with ofproto_rule_update_used().
56 - The new option --timestamp causes the "monitor" command to print
57 a timestamp with every update.
58 - CFM module CCM broadcasts can now be tagged with an 802.1p priority.
62 ------------------------
64 - Added support for querying, modifying, and deleting flows
65 based on flow cookie when using NXM.
66 - Added new NXM_PACKET_IN format.
67 - Added new NXAST_DEC_TTL action.
69 - Added daemonization support to the monitor and snoop commands.
71 - The "find" command supports new set relational operators
72 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
73 - ovsdb-tool now uses the typical database and schema installation
74 directories as defaults.
78 ------------------------
79 - Compatible with Open vSwitch kernel module included in Linux 3.3.
80 - New "VLAN splinters" feature to work around buggy device drivers
81 in old Linux versions. (This feature is deprecated. When
82 broken device drivers are no longer in widespread use, we will
83 delete this feature.) See ovs-vswitchd.conf.db(5) for more
86 - Added ability to match on IPv6 flow label through NXM.
87 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
88 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
89 - Added ability to modify ECN bits in IPv4.
90 - Added ability to modify TTL in IPv4.
92 - Don't require the "normal" action to use mirrors. Traffic will
93 now be properly mirrored for any flows, regardless of their
95 - Track packet and byte statistics sent on mirrors.
96 - The sFlow implementation can now usually infer the correct agent
97 device instead of having to be told explicitly.
99 - New "fdb/flush" command to flush bridge's MAC learning table.
101 - A new distributed testing tool that allows one to diagnose performance
102 and connectivity issues. This tool currently is not included in RH or
104 - RHEL packaging now supports integration with Red Hat network scripts.
106 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
107 to active-backup. SLB bonds carry significant risks with them
108 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
109 users from running into. Users are advised to update any scripts or
110 configuration which may be negatively impacted by explicitly setting
111 the bond mode which they want to use.
115 ------------------------
117 - Added an OpenFlow extension which allows the "output" action to accept
119 - Added an OpenFlow extension for flexible learning.
120 - Bumped number of NXM registers from four to five.
122 - New "version" command to determine version of running daemon.
123 - If no argument is provided for "cfm/show", displays detailed
124 information about all interfaces with CFM enabled.
125 - If no argument is provided for "lacp/show", displays detailed
126 information about all ports with LACP enabled.
128 - New "set-if" command to modify a datapath port's configuration.
130 - The software switch now supports 255 OpenFlow tables, instead
131 of just one. By default, only table 0 is consulted, but the
132 new NXAST_RESUBMIT_TABLE action can look up in additional
133 tables. Tables 128 and above are reserved for use by the
134 switch itself; please use only tables 0 through 127.
135 - Add support for 802.1D spanning tree (STP).
136 - Fragment handling extensions:
137 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
138 fields are made available for matching in fragments with
140 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
141 via "ip_frag" in ovs-ofctl).
142 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
143 fragment handling policy.
144 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
145 By default it remains compatible with the old version and other
146 standards-based implementations.
147 - Flow setups are now processed in a round-robin manner across ports
148 to prevent any single client from monopolizing the CPU and conducting
149 a denial of service attack.
150 - Added support for native VLAN tagging. A new "vlan_mode"
151 parameter can be set for "port". Possible values: "access",
152 "trunk", "native-tagged" and "native-untagged".
153 - test-openflowd has been removed. Please use ovs-vswitchd instead.
156 ------------------------
157 - New "ofproto" abstraction layer to ease porting to hardware
159 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
160 - Datapath support for Linux kernels up to 3.0.
162 - New "bundle" and "bundle_load" action extensions.
164 - Implement table unique constraints.
165 - Support cooperative locking between callers.
167 - New "-s" option for "show" command prints packet and byte
168 counters for each port.
170 - New "--readd" option for "replace-flows".
172 - New "show" command to print an overview of configuration.
173 - New "comment" command to add remark that explains intentions.
174 - ovs-brcompatd has been rewritten to fix long-standing bugs.
175 - ovs-openflowd has been renamed test-openflowd and moved into the
176 tests directory. Its presence confused too many users. Please
177 use ovs-vswitchd instead.
178 - New ovs-benchmark utility to test flow setup performance.
179 - A new log level "off" has been added. Configuring a log facility
180 "off" prevents any messages from being logged to it. Previously,
181 "emer" was effectively "off" because no messages were ever logged at
182 level "emer". Now, errors that cause a process to exit are logged
184 - "configure" option --with-l26 has been renamed --with-linux, and
185 --with-l26-source has been renamed --with-linux-source. The old
186 names will be removed after the next release, so please update
188 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
189 datapath/linux-2.6/compat-2.6 directories.
191 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
192 Please use the extensible match extensions instead.
193 - Removed the Maintenance_Point and Monitor tables in an effort
194 to simplify 802.1ag configuration.
195 - Performance and scalability improvements
199 ------------------------
200 - Ability to define policies over IPv6
203 - Support for extensible match extensions to OpenFlow
205 - Support for HFSC qdisc.
206 - Queue used by in-band control can now be configured.
208 - Kernel<->userspace interface has been reworked and should be
209 close to a stable ABI now.
210 - "Port group" concept has been dropped.
211 - GRE over IPSEC tunnels
213 - New active backup bonding mode.
214 - New L4 hashing support when LACP is enabled.
215 - Source MAC hash now includes VLAN field also.
217 - Greatly improved handling of large flow tables
219 - "show" command now prints full vport configuration.
220 - "dump-groups" command removed since kernel support for
221 port groups was dropped.
223 - New commands for working with the new Managers table.
224 - "list" command enhanced with new formatting options and --columns
226 - "get" command now accepts new --id option.
227 - New "find" command.
229 - New "queue-stats" command for printing queue stats.
230 - New commands "replace-flows" and "diff-flows".
231 - Commands to add and remove flows can now read from files.
232 - New --flow-format option to enable or disable NXM.
233 - New --more option to increase OpenFlow message verbosity.
234 - Removed "tun-cookie" command, which is no longer useful.
235 - ovs-controller enhancements for testing various features.
236 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
237 bugs. New ovs-vlan-bug-workaround command for enabling and
238 disabling a workaround for these driver bugs.
240 - "Resubmit" actions now update flow statistics.
241 - New "register" extension for use in matching and actions, via NXM.
242 - New "multipath" experimental action extension.
243 - New support for matching multicast Ethernet frames, via NXM.
244 - New extension for OpenFlow vendor error codes.
245 - New extension to set the QoS output queue without actually
246 sending to an output port.
247 - Open vSwitch now reports a single flow table, instead of
248 separate hash and wildcard tables. This better models the
249 current implementation.
250 - New experimental "note" action.
251 - New "ofproto/trace" ovs-appctl command and associated utilities
252 to ease debugging complex flow tables.
254 - Schema documentation now includes an entity-relationship diagram.
255 - The database is now garbage collected. In most tables,
256 unreferenced rows will be deleted automatically.
257 - Many tables now include statistics updated periodically by
258 ovs-vswitchd or ovsdb-server.
259 - Every table now has an "external-ids" column for use by OVS
261 - There is no default controller anymore. Each bridge must have its
262 controller individually specified.
263 - The "fail-mode" is now a property of a Bridge instead of a Controller.
264 - New versioning and checksum features.
265 - New Managers table and manager_options column in Open_vSwitch table
266 for specifying managers. The old "managers" column in the
267 Open_vSwitch table has been removed.
268 - Many "name" columns are now immutable.
270 - Dropped support for XenServer pre-5.6.100.
271 - Dropped support for Linux pre-2.6.18.
272 - Dropped controller discovery support.
273 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
274 Statistics reporting in the database is a rough equivalent.
275 - Dropped the "corekeeper" package (now separate, at
276 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
277 - Performance and scalability improvements
280 v1.1.0pre2 - 13 Sep 2010
281 ------------------------
284 v1.1.0pre1 - 31 Aug 2010
285 ------------------------
286 - OpenFlow 1.0 slicing (QoS) functionality
287 - Python bindings for configuration database (no write support)
288 - Performance and scalability improvements
293 - New "patch" interface type
298 - Configuration database with remote management
301 - Support for XenServer 5.5 and 5.6
302 - Performance and scalability improvements
305 v0.99.2 - 18 Feb 2010
306 ---------------------
309 v0.99.1 - 25 Jan 2010
310 ---------------------
311 - Add support for sFlow(R)
312 - Make headers compatible with C++
315 v0.99.0 - 14 Jan 2010
316 ---------------------
317 - User-space forwarding engine
320 v0.90.7 - 29 Nov 2009
321 ---------------------
322 - Add support for NetFlow active timeouts
329 v0.90.5 - 21 Sep 2009
330 ---------------------
331 - Generalize in-band control to more diverse network setups
projects / openvswitch / blob