2 ------------------------
4 - LACP bonds no longer fall back to balance-slb when negotiations fail.
5 Instead they drop traffic.
6 - The default bond_mode changed from SLB to active-backup, to protect
7 unsuspecting users from the significant risks of SLB bonds (which are
8 documented in vswitchd/INTERNALS).
9 - Load balancing can be disabled by setting the bond-rebalance-interval
11 - Logging to console and file will have UTC timestamp as a default for all
12 the daemons. An example of the default format is 2012-01-27T16:35:17Z.
13 ovs-appctl can be used to change the default format as before.
14 - New support for limiting the number of flows in an OpenFlow flow
15 table, with configurable policy for evicting flows upon
16 overflow. See the Flow_Table table in ovs-vswitch.conf.db(5)
18 - ofproto-provider interface:
19 - "struct rule" has a new member "used" that ofproto implementations
20 should maintain by updating with ofproto_rule_update_used().
24 ------------------------
26 - Added support for querying, modifying, and deleting flows
27 based on flow cookie when using NXM.
28 - Added new NXM_PACKET_IN format.
29 - Added new NXAST_DEC_TTL action.
31 - Added daemonization support to the monitor and snoop commands.
33 - The "find" command supports new set relational operators
34 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
35 - ovsdb-tool now uses the typical database and schema installation
36 directories as defaults.
40 ------------------------
41 - Compatible with Open vSwitch kernel module included in Linux 3.3.
42 - New "VLAN splinters" feature to work around buggy device drivers
43 in old Linux versions. (This feature is deprecated. When
44 broken device drivers are no longer in widespread use, we will
45 delete this feature.) See ovs-vswitchd.conf.db(5) for more
48 - Added ability to match on IPv6 flow label through NXM.
49 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
50 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
51 - Added ability to modify ECN bits in IPv4.
52 - Added ability to modify TTL in IPv4.
54 - Don't require the "normal" action to use mirrors. Traffic will
55 now be properly mirrored for any flows, regardless of their
57 - Track packet and byte statistics sent on mirrors.
58 - The sFlow implementation can now usually infer the correct agent
59 device instead of having to be told explicitly.
61 - New "fdb/flush" command to flush bridge's MAC learning table.
63 - A new distributed testing tool that allows one to diagnose performance
64 and connectivity issues. This tool currently is not included in RH or
66 - RHEL packaging now supports integration with Red Hat network scripts.
68 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
69 to active-backup. SLB bonds carry significant risks with them
70 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
71 users from running into. Users are advised to update any scripts or
72 configuration which may be negatively impacted by explicitly setting
73 the bond mode which they want to use.
77 ------------------------
79 - Added an OpenFlow extension which allows the "output" action to accept
81 - Added an OpenFlow extension for flexible learning.
82 - Bumped number of NXM registers from four to five.
84 - New "version" command to determine version of running daemon.
85 - If no argument is provided for "cfm/show", displays detailed
86 information about all interfaces with CFM enabled.
87 - If no argument is provided for "lacp/show", displays detailed
88 information about all ports with LACP enabled.
90 - New "set-if" command to modify a datapath port's configuration.
92 - The software switch now supports 255 OpenFlow tables, instead
93 of just one. By default, only table 0 is consulted, but the
94 new NXAST_RESUBMIT_TABLE action can look up in additional
95 tables. Tables 128 and above are reserved for use by the
96 switch itself; please use only tables 0 through 127.
97 - Add support for 802.1D spanning tree (STP).
98 - Fragment handling extensions:
99 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
100 fields are made available for matching in fragments with
102 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
103 via "ip_frag" in ovs-ofctl).
104 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
105 fragment handling policy.
106 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
107 By default it remains compatible with the old version and other
108 standards-based implementations.
109 - Flow setups are now processed in a round-robin manner across ports
110 to prevent any single client from monopolizing the CPU and conducting
111 a denial of service attack.
112 - Added support for native VLAN tagging. A new "vlan_mode"
113 parameter can be set for "port". Possible values: "access",
114 "trunk", "native-tagged" and "native-untagged".
115 - test-openflowd has been removed. Please use ovs-vswitchd instead.
118 ------------------------
119 - New "ofproto" abstraction layer to ease porting to hardware
121 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
122 - Datapath support for Linux kernels up to 3.0.
124 - New "bundle" and "bundle_load" action extensions.
126 - Implement table unique constraints.
127 - Support cooperative locking between callers.
129 - New "-s" option for "show" command prints packet and byte
130 counters for each port.
132 - New "--readd" option for "replace-flows".
134 - New "show" command to print an overview of configuration.
135 - New "comment" command to add remark that explains intentions.
136 - ovs-brcompatd has been rewritten to fix long-standing bugs.
137 - ovs-openflowd has been renamed test-openflowd and moved into the
138 tests directory. Its presence confused too many users. Please
139 use ovs-vswitchd instead.
140 - New ovs-benchmark utility to test flow setup performance.
141 - A new log level "off" has been added. Configuring a log facility
142 "off" prevents any messages from being logged to it. Previously,
143 "emer" was effectively "off" because no messages were ever logged at
144 level "emer". Now, errors that cause a process to exit are logged
146 - "configure" option --with-l26 has been renamed --with-linux, and
147 --with-l26-source has been renamed --with-linux-source. The old
148 names will be removed after the next release, so please update
150 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
151 datapath/linux-2.6/compat-2.6 directories.
153 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
154 Please use the extensible match extensions instead.
155 - Removed the Maintenance_Point and Monitor tables in an effort
156 to simplify 802.1ag configuration.
157 - Performance and scalability improvements
161 ------------------------
162 - Ability to define policies over IPv6
165 - Support for extensible match extensions to OpenFlow
167 - Support for HFSC qdisc.
168 - Queue used by in-band control can now be configured.
170 - Kernel<->userspace interface has been reworked and should be
171 close to a stable ABI now.
172 - "Port group" concept has been dropped.
173 - GRE over IPSEC tunnels
175 - New active backup bonding mode.
176 - New L4 hashing support when LACP is enabled.
177 - Source MAC hash now includes VLAN field also.
179 - Greatly improved handling of large flow tables
181 - "show" command now prints full vport configuration.
182 - "dump-groups" command removed since kernel support for
183 port groups was dropped.
185 - New commands for working with the new Managers table.
186 - "list" command enhanced with new formatting options and --columns
188 - "get" command now accepts new --id option.
189 - New "find" command.
191 - New "queue-stats" command for printing queue stats.
192 - New commands "replace-flows" and "diff-flows".
193 - Commands to add and remove flows can now read from files.
194 - New --flow-format option to enable or disable NXM.
195 - New --more option to increase OpenFlow message verbosity.
196 - Removed "tun-cookie" command, which is no longer useful.
197 - ovs-controller enhancements for testing various features.
198 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
199 bugs. New ovs-vlan-bug-workaround command for enabling and
200 disabling a workaround for these driver bugs.
202 - "Resubmit" actions now update flow statistics.
203 - New "register" extension for use in matching and actions, via NXM.
204 - New "multipath" experimental action extension.
205 - New support for matching multicast Ethernet frames, via NXM.
206 - New extension for OpenFlow vendor error codes.
207 - New extension to set the QoS output queue without actually
208 sending to an output port.
209 - Open vSwitch now reports a single flow table, instead of
210 separate hash and wildcard tables. This better models the
211 current implementation.
212 - New experimental "note" action.
213 - New "ofproto/trace" ovs-appctl command and associated utilities
214 to ease debugging complex flow tables.
216 - Schema documentation now includes an entity-relationship diagram.
217 - The database is now garbage collected. In most tables,
218 unreferenced rows will be deleted automatically.
219 - Many tables now include statistics updated periodically by
220 ovs-vswitchd or ovsdb-server.
221 - Every table now has an "external-ids" column for use by OVS
223 - There is no default controller anymore. Each bridge must have its
224 controller individually specified.
225 - The "fail-mode" is now a property of a Bridge instead of a Controller.
226 - New versioning and checksum features.
227 - New Managers table and manager_options column in Open_vSwitch table
228 for specifying managers. The old "managers" column in the
229 Open_vSwitch table has been removed.
230 - Many "name" columns are now immutable.
232 - Dropped support for XenServer pre-5.6.100.
233 - Dropped support for Linux pre-2.6.18.
234 - Dropped controller discovery support.
235 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
236 Statistics reporting in the database is a rough equivalent.
237 - Dropped the "corekeeper" package (now separate, at
238 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
239 - Performance and scalability improvements
242 v1.1.0pre2 - 13 Sep 2010
243 ------------------------
246 v1.1.0pre1 - 31 Aug 2010
247 ------------------------
248 - OpenFlow 1.0 slicing (QoS) functionality
249 - Python bindings for configuration database (no write support)
250 - Performance and scalability improvements
255 - New "patch" interface type
260 - Configuration database with remote management
263 - Support for XenServer 5.5 and 5.6
264 - Performance and scalability improvements
267 v0.99.2 - 18 Feb 2010
268 ---------------------
271 v0.99.1 - 25 Jan 2010
272 ---------------------
273 - Add support for sFlow(R)
274 - Make headers compatible with C++
277 v0.99.0 - 14 Jan 2010
278 ---------------------
279 - User-space forwarding engine
282 v0.90.7 - 29 Nov 2009
283 ---------------------
284 - Add support for NetFlow active timeouts
291 v0.90.5 - 21 Sep 2009
292 ---------------------
293 - Generalize in-band control to more diverse network setups
projects / openvswitch / blob