Provided by: openvswitch-brcompat_1.4.0-1ubuntu1_amd64 bug


       ovs-brcompatd - Bridge compatibility front-end for ovs-vswitchd


       ovs-brcompatd [options]


       A  daemon  that  provides  a  legacy  bridge  front-end for ovs-vswitchd.  It does this by
       listening for bridge ioctl commands (e.g., those generated by the brctl program) to add or
       remove datapaths and the interfaces that attach to them.


              Sets  the  name  to  the  program  that  ovs-brcompatd  runs  to  communicate  with
              ovs-vswitchd.  The default is ovs-appctl.  Unless program contains /, ovs-brcompatd
              will search the PATH environment variable to find it.

              Sets  the  name  to  the  program  that  ovs-brcompatd  runs  to  communicate  with
              ovsdb-server.  The default is ovs-vsctl.  Unless program contains /,  ovs-brcompatd
              will search the PATH environment variable to find it.

              Causes  a  file (by default, to be created indicating the PID of
              the running process.  If the pidfile argument is not specified, or if it  does  not
              begin with /, then it is created in /var/run/openvswitch.

              If --pidfile is not specified, no pidfile is created.

              By  default,  when  --pidfile is specified and the specified pidfile already exists
              and is locked by a  running  process,  ovs-brcompatd  refuses  to  start.   Specify
              --overwrite-pidfile to cause it to instead overwrite the pidfile.

              When --pidfile is not specified, this option has no effect.

              Causes  ovs-brcompatd  to  detach  itself  from the foreground session and run as a
              background process.

              Creates an additional process to monitor the ovs-brcompatd daemon.  If  the  daemon
              dies  due  to  a signal that indicates a programming error (e.g. SIGSEGV, SIGABRT),
              then the monitor process starts a new copy of it.  If the daemon die or  exits  for
              another reason, the monitor process exits.

              This option is normally used with --detach, but it also functions without it.

              By  default,  when --detach is specified, ovs-brcompatd changes its current working
              directory  to  the  root  directory  after  it   detaches.    Otherwise,   invoking
              ovs-brcompatd  from  a  carelessly chosen directory would prevent the administrator
              from unmounting the file system that holds that directory.

              Specifying --no-chdir  suppresses  this  behavior,  preventing  ovs-brcompatd  from
              changing  its  current  working  directory.  This may be useful for collecting core
              files, since it is common behavior to write core dumps  into  the  current  working
              directory and the root directory is not a good directory to use.

              This option has no effect when --detach is not specified.

       -vmodule[:facility[:level]], --verbose=module[:facility[:level]]
              Sets the logging level for module in facility to level:

              ·      module  may  be  any valid module name (as displayed by the --list action on
                     ovs-appctl(8)), or the special name ANY to set the logging  levels  for  all

              ·      facility  may  be  syslog, console, or file to set the levels for logging to
                     the system log, the console, or a file  respectively,  or  ANY  to  set  the
                     logging  levels for both facilities.  If it is omitted, facility defaults to

                     Regardless of the log levels set for file, logging to a file will  not  take
                     place unless --log-file is also specified (see below).

              ·      level  must  be  one  of off, emer, err, warn, info, or dbg, designating the
                     minimum severity of a message for it to be logged.  If it is omitted,  level
                     defaults to dbg.  See ovs-appctl(8) for a definition of each log level.

       -v, --verbose
              Sets the maximum logging verbosity level, equivalent to --verbose=ANY:ANY:dbg.

       -vPATTERN:facility:pattern, --verbose=PATTERN:facility:pattern
              Sets  the  log  pattern  for  facility  to  pattern.   Refer to ovs-appctl(8) for a
              description of the valid syntax for pattern.

              Enables logging to a file.  If file is specified, then it is used as the exact name
              for  the  log  file.   The  default  log  file  name  used  if  file  is omitted is

       -h, --help
              Prints a brief help message to the console.

       -V, --version
              Prints version information to the console.

              Logs information about memory allocation and deallocation to  file,  to  allow  for
              debugging  memory  leaks  in  ovs-brcompatd.   This option slows down ovs-brcompatd
              considerably, so it should only be used when a memory leak is suspected.   Use  the
              ovs-parse-leaks script to interpret the leak file.

              Limits  size of the leak file as specified by --check-leaks to size bytes.  Finding
              leaks sometimes requires allowing the leak file to grow very large, up to 1GB.   By
              default, files are limited to 10MB.


       ovs-brcompatd requires the brcompat_mod.ko kernel module to be loaded.


       ovs-appctl(8),  ovs-vsctl(8), ovs-vswitchd(8), ovsdb-server(1), INSTALL.bridge in the Open
       vSwitch distribution.