2 ------------------------
4 - Added an OpenFlow extension which allows the "output" action to accept
6 - Added an OpenFlow extension for flexible learning.
8 - New "version" command to determine version of running daemon.
9 - If no argument is provided for "cfm/show", displays detailed
10 information about all interfaces with CFM enabled.
12 - The software switch now supports 255 OpenFlow tables, instead
13 of just one. By default, only table 0 is consulted, but the
14 new NXAST_RESUBMIT_TABLE action can look up in additional
15 tables. Tables 128 and above are reserved for use by the
16 switch itself; please use only tables 0 through 127.
17 - CAPWAP tunneling now supports an extension to transport a 64-key. By
18 default it remains compatible with the old version and other
19 standards-based implementations.
20 - Flow setups are now processed in a round-robin manner across ports
21 to prevent any single client from monopolizing the CPU and conducting
22 a denial of service attack.
23 - Added support for native VLAN tagging. A new "vlan_mode"
24 parameter can be set for "port". Possible values: "access",
25 "trunk", "native-tagged" and "native-untagged".
28 ------------------------
29 - New "ofproto" abstraction layer to ease porting to hardware
31 - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
32 - Datapath support for Linux kernels up to 3.0.
34 - New "bundle" and "bundle_load" action extensions.
36 - Implement table unique constraints.
37 - Support cooperative locking between callers.
39 - New "-s" option for "show" command prints packet and byte
40 counters for each port.
42 - New "--readd" option for "replace-flows".
44 - New "show" command to print an overview of configuration.
45 - New "comment" command to add remark that explains intentions.
46 - ovs-brcompatd has been rewritten to fix long-standing bugs.
47 - ovs-openflowd has been renamed test-openflowd and moved into the
48 tests directory. Its presence confused too many users. Please
49 use ovs-vswitchd instead.
50 - New ovs-benchmark utility to test flow setup performance.
51 - A new log level "off" has been added. Configuring a log facility
52 "off" prevents any messages from being logged to it. Previously,
53 "emer" was effectively "off" because no messages were ever logged at
54 level "emer". Now, errors that cause a process to exit are logged
56 - "configure" option --with-l26 has been renamed --with-linux, and
57 --with-l26-source has been renamed --with-linux-source. The old
58 names will be removed after the next release, so please update
60 - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
61 datapath/linux-2.6/compat-2.6 directories.
63 - Dropped support for "tun_id_from_cookie" OpenFlow extension.
64 Please use the extensible match extensions instead.
65 - Removed the Maintenance_Point and Monitor tables in an effort
66 to simplify 802.1ag configuration.
67 - Performance and scalability improvements
71 ------------------------
72 - Ability to define policies over IPv6
75 - Support for extensible match extensions to OpenFlow
77 - Support for HFSC qdisc.
78 - Queue used by in-band control can now be configured.
80 - Kernel<->userspace interface has been reworked and should be
81 close to a stable ABI now.
82 - "Port group" concept has been dropped.
83 - GRE over IPSEC tunnels
85 - New active backup bonding mode.
86 - New L4 hashing support when LACP is enabled.
87 - Source MAC hash now includes VLAN field also.
89 - Greatly improved handling of large flow tables
91 - "show" command now prints full vport configuration.
92 - "dump-groups" command removed since kernel support for
93 port groups was dropped.
95 - New commands for working with the new Managers table.
96 - "list" command enhanced with new formatting options and --columns
98 - "get" command now accepts new --id option.
101 - New "queue-stats" command for printing queue stats.
102 - New commands "replace-flows" and "diff-flows".
103 - Commands to add and remove flows can now read from files.
104 - New --flow-format option to enable or disable NXM.
105 - New --more option to increase OpenFlow message verbosity.
106 - Removed "tun-cookie" command, which is no longer useful.
107 - ovs-controller enhancements for testing various features.
108 - New ovs-vlan-test command for testing for Linux kernel driver VLAN
109 bugs. New ovs-vlan-bug-workaround command for enabling and
110 disabling a workaround for these driver bugs.
112 - "Resubmit" actions now update flow statistics.
113 - New "register" extension for use in matching and actions, via NXM.
114 - New "multipath" experimental action extension.
115 - New support for matching multicast Ethernet frames, via NXM.
116 - New extension for OpenFlow vendor error codes.
117 - New extension to set the QoS output queue without actually
118 sending to an output port.
119 - Open vSwitch now reports a single flow table, instead of
120 separate hash and wildcard tables. This better models the
121 current implementation.
122 - New experimental "note" action.
123 - New "ofproto/trace" ovs-appctl command and associated utilities
124 to ease debugging complex flow tables.
126 - Schema documentation now includes an entity-relationship diagram.
127 - The database is now garbage collected. In most tables,
128 unreferenced rows will be deleted automatically.
129 - Many tables now include statistics updated periodically by
130 ovs-vswitchd or ovsdb-server.
131 - Every table now has an "external-ids" column for use by OVS
133 - There is no default controller anymore. Each bridge must have its
134 controller individually specified.
135 - The "fail-mode" is now a property of a Bridge instead of a Controller.
136 - New versioning and checksum features.
137 - New Managers table and manager_options column in Open_vSwitch table
138 for specifying managers. The old "managers" column in the
139 Open_vSwitch table has been removed.
140 - Many "name" columns are now immutable.
142 - Dropped support for XenServer pre-5.6.100.
143 - Dropped support for Linux pre-2.6.18.
144 - Dropped controller discovery support.
145 - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
146 Statistics reporting in the database is a rough equivalent.
147 - Dropped the "corekeeper" package (now separate, at
148 http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
149 - Performance and scalability improvements
152 v1.1.0pre2 - 13 Sep 2010
153 ------------------------
156 v1.1.0pre1 - 31 Aug 2010
157 ------------------------
158 - OpenFlow 1.0 slicing (QoS) functionality
159 - Python bindings for configuration database (no write support)
160 - Performance and scalability improvements
165 - New "patch" interface type
170 - Configuration database with remote management
173 - Support for XenServer 5.5 and 5.6
174 - Performance and scalability improvements
177 v0.99.2 - 18 Feb 2010
178 ---------------------
181 v0.99.1 - 25 Jan 2010
182 ---------------------
183 - Add support for sFlow(R)
184 - Make headers compatible with C++
187 v0.99.0 - 14 Jan 2010
188 ---------------------
189 - User-space forwarding engine
192 v0.90.7 - 29 Nov 2009
193 ---------------------
194 - Add support for NetFlow active timeouts
201 v0.90.5 - 21 Sep 2009
202 ---------------------
203 - Generalize in-band control to more diverse network setups