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().
21 - The default MAC learning timeout has been increased from 60 seconds
22 to 300 seconds. The MAC learning timeout is now configurable.
24 - The new option --timestamp causes the "monitor" command to print
25 a timestamp with every update.
29 ------------------------
31 - Added support for querying, modifying, and deleting flows
32 based on flow cookie when using NXM.
33 - Added new NXM_PACKET_IN format.
34 - Added new NXAST_DEC_TTL action.
36 - Added daemonization support to the monitor and snoop commands.
38 - The "find" command supports new set relational operators
39 {=}, {!=}, {<}, {>}, {<=}, and {>=}.
40 - ovsdb-tool now uses the typical database and schema installation
41 directories as defaults.
45 ------------------------
46 - Compatible with Open vSwitch kernel module included in Linux 3.3.
47 - New "VLAN splinters" feature to work around buggy device drivers
48 in old Linux versions. (This feature is deprecated. When
49 broken device drivers are no longer in widespread use, we will
50 delete this feature.) See ovs-vswitchd.conf.db(5) for more
53 - Added ability to match on IPv6 flow label through NXM.
54 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
55 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
56 - Added ability to modify ECN bits in IPv4.
57 - Added ability to modify TTL in IPv4.
59 - Don't require the "normal" action to use mirrors. Traffic will
60 now be properly mirrored for any flows, regardless of their
62 - Track packet and byte statistics sent on mirrors.
63 - The sFlow implementation can now usually infer the correct agent
64 device instead of having to be told explicitly.
66 - New "fdb/flush" command to flush bridge's MAC learning table.
68 - A new distributed testing tool that allows one to diagnose performance
69 and connectivity issues. This tool currently is not included in RH or
71 - RHEL packaging now supports integration with Red Hat network scripts.
73 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
74 to active-backup. SLB bonds carry significant risks with them
75 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
76 users from running into. Users are advised to update any scripts or
77 configuration which may be negatively impacted by explicitly setting
78 the bond mode which they want to use.
82 ------------------------
84 - Added an OpenFlow extension which allows the "output" action to accept
86 - Added an OpenFlow extension for flexible learning.
87 - Bumped number of NXM registers from four to five.
89 - New "version" command to determine version of running daemon.
90 - If no argument is provided for "cfm/show", displays detailed
91 information about all interfaces with CFM enabled.
92 - If no argument is provided for "lacp/show", displays detailed
93 information about all ports with LACP enabled.
95 - New "set-if" command to modify a datapath port's configuration.
97 - The software switch now supports 255 OpenFlow tables, instead
98 of just one. By default, only table 0 is consulted, but the
99 new NXAST_RESUBMIT_TABLE action can look up in additional
100 tables. Tables 128 and above are reserved for use by the
101 switch itself; please use only tables 0 through 127.
102 - Add support for 802.1D spanning tree (STP).
103 - Fragment handling extensions:
104 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
105 fields are made available for matching in fragments with
107 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
108 via "ip_frag" in ovs-ofctl).
109 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
110 fragment handling policy.
111 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
112 By default it remains compatible with the old version and other
113 standards-based implementations.
114 - Flow setups are now processed in a round-robin manner across ports
115 to prevent any single client from monopolizing the CPU and conducting
116 a denial of service attack.
117 - Added support for native VLAN tagging. A new "vlan_mode"
118 parameter can be set for "port". Possible values: "access",
119 "trunk", "native-tagged" and "native-untagged".
120 - test-openflowd has been removed. Please use ovs-vswitchd instead.
123 ------------------------
124 - New "ofproto" abstraction layer to ease porting to hardware
126 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
127 - Datapath support for Linux kernels up to 3.0.
129 - New "bundle" and "bundle_load" action extensions.
131 - Implement table unique constraints.
132 - Support cooperative locking between callers.
134 - New "-s" option for "show" command prints packet and byte
135 counters for each port.
137 - New "--readd" option for "replace-flows".
139 - New "show" command to print an overview of configuration.
140 - New "comment" command to add remark that explains intentions.
141 - ovs-brcompatd has been rewritten to fix long-standing bugs.
142 - ovs-openflowd has been renamed test-openflowd and moved into the
143 tests directory. Its presence confused too many users. Please
144 use ovs-vswitchd instead.
145 - New ovs-benchmark utility to test flow setup performance.
146 - A new log level "off" has been added. Configuring a log facility
147 "off" prevents any messages from being logged to it. Previously,
148 "emer" was effectively "off" because no messages were ever logged at
149 level "emer". Now, errors that cause a process to exit are logged
151 - "configure" option --with-l26 has been renamed --with-linux, and
152 --with-l26-source has been renamed --with-linux-source. The old
153 names will be removed after the next release, so please update
155 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
156 datapath/linux-2.6/compat-2.6 directories.
158 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
159 Please use the extensible match extensions instead.
160 - Removed the Maintenance_Point and Monitor tables in an effort
161 to simplify 802.1ag configuration.
162 - Performance and scalability improvements
166 ------------------------
167 - Ability to define policies over IPv6
170 - Support for extensible match extensions to OpenFlow
172 - Support for HFSC qdisc.
173 - Queue used by in-band control can now be configured.
175 - Kernel<->userspace interface has been reworked and should be
176 close to a stable ABI now.
177 - "Port group" concept has been dropped.
178 - GRE over IPSEC tunnels
180 - New active backup bonding mode.
181 - New L4 hashing support when LACP is enabled.
182 - Source MAC hash now includes VLAN field also.
184 - Greatly improved handling of large flow tables
186 - "show" command now prints full vport configuration.
187 - "dump-groups" command removed since kernel support for
188 port groups was dropped.
190 - New commands for working with the new Managers table.
191 - "list" command enhanced with new formatting options and --columns
193 - "get" command now accepts new --id option.
194 - New "find" command.
196 - New "queue-stats" command for printing queue stats.
197 - New commands "replace-flows" and "diff-flows".
198 - Commands to add and remove flows can now read from files.
199 - New --flow-format option to enable or disable NXM.
200 - New --more option to increase OpenFlow message verbosity.
201 - Removed "tun-cookie" command, which is no longer useful.
202 - ovs-controller enhancements for testing various features.
203 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
204 bugs. New ovs-vlan-bug-workaround command for enabling and
205 disabling a workaround for these driver bugs.
207 - "Resubmit" actions now update flow statistics.
208 - New "register" extension for use in matching and actions, via NXM.
209 - New "multipath" experimental action extension.
210 - New support for matching multicast Ethernet frames, via NXM.
211 - New extension for OpenFlow vendor error codes.
212 - New extension to set the QoS output queue without actually
213 sending to an output port.
214 - Open vSwitch now reports a single flow table, instead of
215 separate hash and wildcard tables. This better models the
216 current implementation.
217 - New experimental "note" action.
218 - New "ofproto/trace" ovs-appctl command and associated utilities
219 to ease debugging complex flow tables.
221 - Schema documentation now includes an entity-relationship diagram.
222 - The database is now garbage collected. In most tables,
223 unreferenced rows will be deleted automatically.
224 - Many tables now include statistics updated periodically by
225 ovs-vswitchd or ovsdb-server.
226 - Every table now has an "external-ids" column for use by OVS
228 - There is no default controller anymore. Each bridge must have its
229 controller individually specified.
230 - The "fail-mode" is now a property of a Bridge instead of a Controller.
231 - New versioning and checksum features.
232 - New Managers table and manager_options column in Open_vSwitch table
233 for specifying managers. The old "managers" column in the
234 Open_vSwitch table has been removed.
235 - Many "name" columns are now immutable.
237 - Dropped support for XenServer pre-5.6.100.
238 - Dropped support for Linux pre-2.6.18.
239 - Dropped controller discovery support.
240 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
241 Statistics reporting in the database is a rough equivalent.
242 - Dropped the "corekeeper" package (now separate, at
243 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
244 - Performance and scalability improvements
247 v1.1.0pre2 - 13 Sep 2010
248 ------------------------
251 v1.1.0pre1 - 31 Aug 2010
252 ------------------------
253 - OpenFlow 1.0 slicing (QoS) functionality
254 - Python bindings for configuration database (no write support)
255 - Performance and scalability improvements
260 - New "patch" interface type
265 - Configuration database with remote management
268 - Support for XenServer 5.5 and 5.6
269 - Performance and scalability improvements
272 v0.99.2 - 18 Feb 2010
273 ---------------------
276 v0.99.1 - 25 Jan 2010
277 ---------------------
278 - Add support for sFlow(R)
279 - Make headers compatible with C++
282 v0.99.0 - 14 Jan 2010
283 ---------------------
284 - User-space forwarding engine
287 v0.90.7 - 29 Nov 2009
288 ---------------------
289 - Add support for NetFlow active timeouts
296 v0.90.5 - 21 Sep 2009
297 ---------------------
298 - Generalize in-band control to more diverse network setups
projects / openvswitch / blob