NEWS

   1 port-v1.4.0
   2 ------------------------
   3     - OpenFlow:
   4         - Added support for querying, modifying, and deleting flows
   5           based on flow cookie when using NXM.
   6
   7
   8 v1.4.0 - xx xxx xxxx
   9 ------------------------
  10     - New "VLAN splinters" feature to work around buggy device drivers
  11       in old Linux versions.  (This feature is deprecated.  When
  12       broken device drivers are no longer in widespread use, we will
  13       delete this feature.)  See ovs-vswitchd.conf.db(5) for more
  14       information.
  15     - OpenFlow:
  16        - Added ability to match on IPv6 flow label through NXM.
  17        - Added ability to match on ECN bits in IPv4 and IPv6 through NXM.
  18        - Added ability to match on TTL in IPv4 and IPv6 through NXM.
  19        - Added ability to modify ECN bits in IPv4.
  20        - Added ability to modify TTL in IPv4.
  21     - ovs-vswitchd:
  22        - Don't require the "normal" action to use mirrors.  Traffic will
  23          now be properly mirrored for any flows, regardless of their
  24          actions.
  25        - Track packet and byte statistics sent on mirrors.
  26        - The sFlow implementation can now usually infer the correct agent
  27          device instead of having to be told explicitly.
  28     - ovs-appctl:
  29       - New "fdb/flush" command to flush bridge's MAC learning table.
  30     - ovs-test:
  31       - A new distributed testing tool that allows one to diagnose performance
  32         and connectivity issues. This tool currently is not included in RH or
  33         Xen packages.
  34     - RHEL packaging now supports integration with Red Hat network scripts.
  35     - bonding:
  36       - Post 1.4.*, OVS will be changing the default bond mode from balance-slb
  37         to active-backup.  SLB bonds carry significant risks with them
  38         (documented vswitchd/INTERNALS) which we want to prevent unsuspecting
  39         users from running into.  Users are advised to update any scripts or
  40         configuration which may be negatively impacted by explicitly setting
  41         the bond mode which they want to use.
  42
  43
  44 v1.3.0 - 09 Dec 2011
  45 ------------------------
  46     - OpenFlow:
  47       - Added an OpenFlow extension which allows the "output" action to accept
  48         NXM fields.
  49       - Added an OpenFlow extension for flexible learning.
  50       - Bumped number of NXM registers from four to five.
  51     - ovs-appctl:
  52       - New "version" command to determine version of running daemon.
  53       - If no argument is provided for "cfm/show", displays detailed
  54         information about all interfaces with CFM enabled.
  55       - If no argument is provided for "lacp/show", displays detailed
  56         information about all ports with LACP enabled.
  57     - ovs-dpctl:
  58       - New "set-if" command to modify a datapath port's configuration.
  59     - ovs-vswitchd:
  60       - The software switch now supports 255 OpenFlow tables, instead
  61         of just one.  By default, only table 0 is consulted, but the
  62         new NXAST_RESUBMIT_TABLE action can look up in additional
  63         tables.  Tables 128 and above are reserved for use by the
  64         switch itself; please use only tables 0 through 127.
  65       - Add support for 802.1D spanning tree (STP).
  66     - Fragment handling extensions:
  67       - New OFPC_FRAG_NX_MATCH fragment handling mode, in which L4
  68         fields are made available for matching in fragments with
  69         offset 0.
  70       - New NXM_NX_IP_FRAG match field for matching IP fragments (usable
  71         via "ip_frag" in ovs-ofctl).
  72       - New ovs-ofctl "get-frags" and "set-frags" commands to get and set
  73         fragment handling policy.
  74     - CAPWAP tunneling now supports an extension to transport a 64-bit key.
  75       By default it remains compatible with the old version and other
  76       standards-based implementations.
  77     - Flow setups are now processed in a round-robin manner across ports
  78       to prevent any single client from monopolizing the CPU and conducting
  79       a denial of service attack.
  80     - Added support for native VLAN tagging.  A new "vlan_mode"
  81       parameter can be set for "port". Possible values: "access",
  82       "trunk", "native-tagged" and "native-untagged".
  83     - test-openflowd has been removed.  Please use ovs-vswitchd instead.
  84
  85 v1.2.0 - 03 Aug 2011
  86 ------------------------
  87     - New "ofproto" abstraction layer to ease porting to hardware
  88       switching ASICs.
  89     - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
  90     - Datapath support for Linux kernels up to 3.0.
  91     - OpenFlow:
  92       - New "bundle" and "bundle_load" action extensions.
  93     - Database:
  94       - Implement table unique constraints.
  95       - Support cooperative locking between callers.
  96     - ovs-dpctl:
  97       - New "-s" option for "show" command prints packet and byte
  98         counters for each port.
  99     - ovs-ofctl:
 100       - New "--readd" option for "replace-flows".
 101     - ovs-vsctl:
 102       - New "show" command to print an overview of configuration.
 103       - New "comment" command to add remark that explains intentions.
 104     - ovs-brcompatd has been rewritten to fix long-standing bugs.
 105     - ovs-openflowd has been renamed test-openflowd and moved into the
 106       tests directory.  Its presence confused too many users.  Please
 107       use ovs-vswitchd instead.
 108     - New ovs-benchmark utility to test flow setup performance.
 109     - A new log level "off" has been added.  Configuring a log facility
 110       "off" prevents any messages from being logged to it.  Previously,
 111       "emer" was effectively "off" because no messages were ever logged at
 112       level "emer".  Now, errors that cause a process to exit are logged
 113       at "emer" level.
 114     - "configure" option --with-l26 has been renamed --with-linux, and
 115       --with-l26-source has been renamed --with-linux-source.  The old
 116       names will be removed after the next release, so please update
 117       your scripts.
 118     - The "-2.6" suffix has been dropped from the datapath/linux-2.6 and
 119       datapath/linux-2.6/compat-2.6 directories.
 120     - Feature removals:
 121       - Dropped support for "tun_id_from_cookie" OpenFlow extension.
 122            Please use the extensible match extensions instead.
 123       - Removed the Maintenance_Point and Monitor tables in an effort
 124         to simplify 802.1ag configuration.
 125     - Performance and scalability improvements
 126     - Bug fixes
 127
 128 v1.1.0 - 05 Apr 2011
 129 ------------------------
 130     - Ability to define policies over IPv6
 131     - LACP
 132     - 802.1ag CCM
 133     - Support for extensible match extensions to OpenFlow
 134     - QoS:
 135       - Support for HFSC qdisc.
 136       - Queue used by in-band control can now be configured.
 137     - Kernel:
 138       - Kernel<->userspace interface has been reworked and should be
 139         close to a stable ABI now.
 140       - "Port group" concept has been dropped.
 141     - GRE over IPSEC tunnels
 142     - Bonding:
 143       - New active backup bonding mode.
 144       - New L4 hashing support when LACP is enabled.
 145       - Source MAC hash now includes VLAN field also.
 146       - miimon support.
 147     - Greatly improved handling of large flow tables
 148     - ovs-dpctl:
 149       - "show" command now prints full vport configuration.
 150       - "dump-groups" command removed since kernel support for
 151         port groups was dropped.
 152     - ovs-vsctl:
 153       - New commands for working with the new Managers table.
 154       - "list" command enhanced with new formatting options and --columns
 155         option.
 156       - "get" command now accepts new --id option.
 157       - New "find" command.
 158     - ovs-ofctl:
 159       - New "queue-stats" command for printing queue stats.
 160       - New commands "replace-flows" and "diff-flows".
 161       - Commands to add and remove flows can now read from files.
 162       - New --flow-format option to enable or disable NXM.
 163       - New --more option to increase OpenFlow message verbosity.
 164       - Removed "tun-cookie" command, which is no longer useful.
 165     - ovs-controller enhancements for testing various features.
 166     - New ovs-vlan-test command for testing for Linux kernel driver VLAN
 167       bugs.  New ovs-vlan-bug-workaround command for enabling and
 168       disabling a workaround for these driver bugs.
 169     - OpenFlow support:
 170       - "Resubmit" actions now update flow statistics.
 171       - New "register" extension for use in matching and actions, via NXM.
 172       - New "multipath" experimental action extension.
 173       - New support for matching multicast Ethernet frames, via NXM.
 174       - New extension for OpenFlow vendor error codes.
 175       - New extension to set the QoS output queue without actually
 176         sending to an output port.
 177       - Open vSwitch now reports a single flow table, instead of
 178         separate hash and wildcard tables.  This better models the
 179         current implementation.
 180       - New experimental "note" action.
 181       - New "ofproto/trace" ovs-appctl command and associated utilities
 182         to ease debugging complex flow tables.
 183     - Database:
 184       - Schema documentation now includes an entity-relationship diagram.
 185       - The database is now garbage collected.  In most tables,
 186         unreferenced rows will be deleted automatically.
 187       - Many tables now include statistics updated periodically by
 188         ovs-vswitchd or ovsdb-server.
 189       - Every table now has an "external-ids" column for use by OVS
 190         integrators.
 191       - There is no default controller anymore.  Each bridge must have its
 192         controller individually specified.
 193       - The "fail-mode" is now a property of a Bridge instead of a Controller.
 194       - New versioning and checksum features.
 195       - New Managers table and manager_options column in Open_vSwitch table
 196         for specifying managers.  The old "managers" column in the
 197         Open_vSwitch table has been removed.
 198       - Many "name" columns are now immutable.
 199     - Feature removals:
 200       - Dropped support for XenServer pre-5.6.100.
 201       - Dropped support for Linux pre-2.6.18.
 202       - Dropped controller discovery support.
 203       - Dropped "ovs-ofctl status" and the OpenFlow extension that it used.
 204         Statistics reporting in the database is a rough equivalent.
 205       - Dropped the "corekeeper" package (now separate, at
 206         http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper).
 207     - Performance and scalability improvements
 208     - Bug fixes
 209
 210 v1.1.0pre2 - 13 Sep 2010
 211 ------------------------
 212     - Bug fixes
 213
 214 v1.1.0pre1 - 31 Aug 2010
 215 ------------------------
 216     - OpenFlow 1.0 slicing (QoS) functionality
 217     - Python bindings for configuration database (no write support)
 218     - Performance and scalability improvements
 219     - Bug fixes
 220
 221 v1.0.1 - 31 May 2010
 222 --------------------
 223     - New "patch" interface type
 224     - Bug fixes
 225
 226 v1.0.0 - 15 May 2010
 227 --------------------
 228     - Configuration database with remote management
 229     - OpenFlow 1.0
 230     - GRE tunneling
 231     - Support for XenServer 5.5 and 5.6
 232     - Performance and scalability improvements
 233     - Bug fixes
 234
 235 v0.99.2 - 18 Feb 2010
 236 ---------------------
 237     - Bug fixes
 238
 239 v0.99.1 - 25 Jan 2010
 240 ---------------------
 241     - Add support for sFlow(R)
 242     - Make headers compatible with C++
 243     - Bug fixes
 244
 245 v0.99.0 - 14 Jan 2010
 246 ---------------------
 247     - User-space forwarding engine
 248     - Bug fixes
 249
 250 v0.90.7 - 29 Nov 2009
 251 ---------------------
 252     - Add support for NetFlow active timeouts
 253     - Bug fixes
 254
 255 v0.90.6 - 6 Oct 2009
 256 --------------------
 257     - Bug fixes
 258
 259 v0.90.5 - 21 Sep 2009
 260 ---------------------
 261     - Generalize in-band control to more diverse network setups
 262     - Bug fixes