2 ------------------------
6 ------------------------
7 - New "VLAN splinters" feature to work around buggy device drivers
8 in old Linux versions. (This feature is deprecated. When
9 broken device drivers are no longer in widespread use, we will
10 delete this feature.) See ovs-vswitchd.conf.db(5) for more
13 - Added ability to match on IPv6 flow label through NXM.
14 - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
15 - Added ability to match on TTL in IPv4 and IPv6 through NXM.
16 - Added ability to modify ECN bits in IPv4.
17 - Added ability to modify TTL in IPv4.
19 - Don't require the "normal" action to use mirrors. Traffic will
20 now be properly mirrored for any flows, regardless of their
22 - Track packet and byte statistics sent on mirrors.
23 - The sFlow implementation can now usually infer the correct agent
24 device instead of having to be told explicitly.
26 - New "fdb/flush" command to flush bridge's MAC learning table.
28 - A new distributed testing tool that allows one to diagnose performance
29 and connectivity issues. This tool currently is not included in RH or
31 - RHEL packaging now supports integration with Red Hat network scripts.
33 - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
34 to active-backup. SLB bonds carry significant risks with them
35 (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
36 users from running into. Users are advised to update any scripts or
37 configuration which may be negatively impacted by explicitly setting
38 the bond mode which they want to use.
42 ------------------------
44 - Added an OpenFlow extension which allows the "output" action to accept
46 - Added an OpenFlow extension for flexible learning.
47 - Bumped number of NXM registers from four to five.
49 - New "version" command to determine version of running daemon.
50 - If no argument is provided for "cfm/show", displays detailed
51 information about all interfaces with CFM enabled.
52 - If no argument is provided for "lacp/show", displays detailed
53 information about all ports with LACP enabled.
55 - New "set-if" command to modify a datapath port's configuration.
57 - The software switch now supports 255 OpenFlow tables, instead
58 of just one. By default, only table 0 is consulted, but the
59 new NXAST_RESUBMIT_TABLE action can look up in additional
60 tables. Tables 128 and above are reserved for use by the
61 switch itself; please use only tables 0 through 127.
62 - Add support for 802.1D spanning tree (STP).
63 - Fragment handling extensions:
64 - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
65 fields are made available for matching in fragments with
67 - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
68 via "ip_frag" in ovs-ofctl).
69 - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
70 fragment handling policy.
71 - CAPWAP tunneling now supports an extension to transport a 64-bit key.
72 By default it remains compatible with the old version and other
73 standards-based implementations.
74 - Flow setups are now processed in a round-robin manner across ports
75 to prevent any single client from monopolizing the CPU and conducting
76 a denial of service attack.
77 - Added support for native VLAN tagging. A new "vlan_mode"
78 parameter can be set for "port". Possible values: "access",
79 "trunk", "native-tagged" and "native-untagged".
80 - test-openflowd has been removed. Please use ovs-vswitchd instead.
83 ------------------------
84 - New "ofproto" abstraction layer to ease porting to hardware
86 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
87 - Datapath support for Linux kernels up to 3.0.
89 - New "bundle" and "bundle_load" action extensions.
91 - Implement table unique constraints.
92 - Support cooperative locking between callers.
94 - New "-s" option for "show" command prints packet and byte
95 counters for each port.
97 - New "--readd" option for "replace-flows".
99 - New "show" command to print an overview of configuration.
100 - New "comment" command to add remark that explains intentions.
101 - ovs-brcompatd has been rewritten to fix long-standing bugs.
102 - ovs-openflowd has been renamed test-openflowd and moved into the
103 tests directory. Its presence confused too many users. Please
104 use ovs-vswitchd instead.
105 - New ovs-benchmark utility to test flow setup performance.
106 - A new log level "off" has been added. Configuring a log facility
107 "off" prevents any messages from being logged to it. Previously,
108 "emer" was effectively "off" because no messages were ever logged at
109 level "emer". Now, errors that cause a process to exit are logged
111 - "configure" option --with-l26 has been renamed --with-linux, and
112 --with-l26-source has been renamed --with-linux-source. The old
113 names will be removed after the next release, so please update
115 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
116 datapath/linux-2.6/compat-2.6 directories.
118 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
119 Please use the extensible match extensions instead.
120 - Removed the Maintenance_Point and Monitor tables in an effort
121 to simplify 802.1ag configuration.
122 - Performance and scalability improvements
126 ------------------------
127 - Ability to define policies over IPv6
130 - Support for extensible match extensions to OpenFlow
132 - Support for HFSC qdisc.
133 - Queue used by in-band control can now be configured.
135 - Kernel<->userspace interface has been reworked and should be
136 close to a stable ABI now.
137 - "Port group" concept has been dropped.
138 - GRE over IPSEC tunnels
140 - New active backup bonding mode.
141 - New L4 hashing support when LACP is enabled.
142 - Source MAC hash now includes VLAN field also.
144 - Greatly improved handling of large flow tables
146 - "show" command now prints full vport configuration.
147 - "dump-groups" command removed since kernel support for
148 port groups was dropped.
150 - New commands for working with the new Managers table.
151 - "list" command enhanced with new formatting options and --columns
153 - "get" command now accepts new --id option.
154 - New "find" command.
156 - New "queue-stats" command for printing queue stats.
157 - New commands "replace-flows" and "diff-flows".
158 - Commands to add and remove flows can now read from files.
159 - New --flow-format option to enable or disable NXM.
160 - New --more option to increase OpenFlow message verbosity.
161 - Removed "tun-cookie" command, which is no longer useful.
162 - ovs-controller enhancements for testing various features.
163 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
164 bugs. New ovs-vlan-bug-workaround command for enabling and
165 disabling a workaround for these driver bugs.
167 - "Resubmit" actions now update flow statistics.
168 - New "register" extension for use in matching and actions, via NXM.
169 - New "multipath" experimental action extension.
170 - New support for matching multicast Ethernet frames, via NXM.
171 - New extension for OpenFlow vendor error codes.
172 - New extension to set the QoS output queue without actually
173 sending to an output port.
174 - Open vSwitch now reports a single flow table, instead of
175 separate hash and wildcard tables. This better models the
176 current implementation.
177 - New experimental "note" action.
178 - New "ofproto/trace" ovs-appctl command and associated utilities
179 to ease debugging complex flow tables.
181 - Schema documentation now includes an entity-relationship diagram.
182 - The database is now garbage collected. In most tables,
183 unreferenced rows will be deleted automatically.
184 - Many tables now include statistics updated periodically by
185 ovs-vswitchd or ovsdb-server.
186 - Every table now has an "external-ids" column for use by OVS
188 - There is no default controller anymore. Each bridge must have its
189 controller individually specified.
190 - The "fail-mode" is now a property of a Bridge instead of a Controller.
191 - New versioning and checksum features.
192 - New Managers table and manager_options column in Open_vSwitch table
193 for specifying managers. The old "managers" column in the
194 Open_vSwitch table has been removed.
195 - Many "name" columns are now immutable.
197 - Dropped support for XenServer pre-5.6.100.
198 - Dropped support for Linux pre-2.6.18.
199 - Dropped controller discovery support.
200 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
201 Statistics reporting in the database is a rough equivalent.
202 - Dropped the "corekeeper" package (now separate, at
203 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
204 - Performance and scalability improvements
207 v1.1.0pre2 - 13 Sep 2010
208 ------------------------
211 v1.1.0pre1 - 31 Aug 2010
212 ------------------------
213 - OpenFlow 1.0 slicing (QoS) functionality
214 - Python bindings for configuration database (no write support)
215 - Performance and scalability improvements
220 - New "patch" interface type
225 - Configuration database with remote management
228 - Support for XenServer 5.5 and 5.6
229 - Performance and scalability improvements
232 v0.99.2 - 18 Feb 2010
233 ---------------------
236 v0.99.1 - 25 Jan 2010
237 ---------------------
238 - Add support for sFlow(R)
239 - Make headers compatible with C++
242 v0.99.0 - 14 Jan 2010
243 ---------------------
244 - User-space forwarding engine
247 v0.90.7 - 29 Nov 2009
248 ---------------------
249 - Add support for NetFlow active timeouts
256 v0.90.5 - 21 Sep 2009
257 ---------------------
258 - Generalize in-band control to more diverse network setups