logging_vty_test> enable

logging_vty_test# show running-config
...
log stderr
... !logging level all
 logging level aa debug
 logging level bb info
 logging level ccc notice
 logging level dddd error
 logging level eee fatal
...

logging_vty_test# configure terminal
logging_vty_test(config)# log stderr

logging_vty_test(config-log)# logging level force-all notice
logging_vty_test(config-log)# show running-config
... !logging level all
 logging level force-all notice
... !logging level all

logging_vty_test(config-log)# no logging level force-all
logging_vty_test(config-log)# show running-config
... !logging level force-all

logging_vty_test(config-log)# exit
logging_vty_test(config)# no log stderr
logging_vty_test(config)# exit

logging_vty_test# logging level force-all notice
Logging was not enabled.

logging_vty_test# logging enable
logging_vty_test# logging filter all 1
logging_vty_test# logging print category-hex 0
logging_vty_test# logging print category 1
logging_vty_test# logging print level 1
logging_vty_test# logging color 0
logging_vty_test# logging print file 0


logging_vty_test# list
... !logging
  logging enable
  logging disable
  logging filter all (0|1)
  logging color (0|1)
  logging timestamp (0|1)
  logging print extended-timestamp (0|1)
  logging print category (0|1)
  logging print category-hex (0|1)
  logging print level (0|1)
  logging print file (0|1|basename) [last]
  logging set-log-mask MASK
  logging level (aa|bb|ccc|dddd|eee|lglobal|llapd|linp|lmux|lmi|lmib|lsms|lctrl|lgtp|lstats|lgsup|loap|lss7|lsccp|lsua|lm3ua|lmgcp|ljibuf|lrspro|lns|lbssgp) (debug|info|notice|error|fatal)
  logging level set-all (debug|info|notice|error|fatal)
  logging level force-all (debug|info|notice|error|fatal)
  no logging level force-all
... !^  logging

logging_vty_test# logging ?
  enable        Enables logging to this vty
  disable       Disables logging to this vty
  filter        Filter log messages
  color         Configure color-printing for log messages
  timestamp     Configure log message timestamping
  print         Log output settings
  set-log-mask  Set the logmask of this logging target
  level         Set the log level for a specified category

logging_vty_test# logging level ?
... ! all
  aa         Antropomorphic Armadillos (AA)
  bb         Bidirectional Breadspread (BB)
  ccc        Chaos Communication Congress (CCC)
  dddd       Dehydrated Dribbling Duck Dunkers (DDDD)
  eee        Exhaustive Entropy Extraction (EEE)
  lglobal    Library-internal global log family
... ! all
  set-all    Once-off set all categories to the given log level. There is no single command to take back these changes -- each category is set to the given level, period.
  force-all  Globally force all logging categories to a specific level. This is released by the 'no logging level force-all' command. Note: any 'logging level <category> <level>' commands will have no visible effect after this, until the forced level is released.

logging_vty_test# logging level aa ?
  debug   Log debug messages and higher levels
  info    Log informational messages and higher levels
  notice  Log noticeable messages and higher levels
  error   Log error messages and higher levels
  fatal   Log only fatal messages

logging_vty_test# logging level all ?
% There is no matched command.

logging_vty_test# logging level force-all ?
  debug   Log debug messages and higher levels
  info    Log informational messages and higher levels
  notice  Log noticeable messages and higher levels
  error   Log error messages and higher levels
  fatal   Log only fatal messages

logging_vty_test# no logging level ?
  force-all  Release any globally forced log level set with 'logging level force-all <level>'

logging_vty_test# logging level set-all ?
  debug   Log debug messages and higher levels
  info    Log informational messages and higher levels
  notice  Log noticeable messages and higher levels
  error   Log error messages and higher levels
  fatal   Log only fatal messages


logging_vty_test# log-sweep
DAA DEBUG Log message for DAA on level LOGL_DEBUG
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# ! The deprecated 'logging level all' still does what it did
logging_vty_test# logging level all fatal
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level all error
logging_vty_test# log-sweep
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level all notice
logging_vty_test# log-sweep
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level all debug
logging_vty_test# log-sweep
DAA DEBUG Log message for DAA on level LOGL_DEBUG
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB DEBUG Log message for DBB on level LOGL_DEBUG
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC DEBUG Log message for DCCC on level LOGL_DEBUG
DCCC INFO Log message for DCCC on level LOGL_INFO
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD DEBUG Log message for DDDDD on level LOGL_DEBUG
DDDDD INFO Log message for DDDDD on level LOGL_INFO
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE DEBUG Log message for DEEE on level LOGL_DEBUG
DEEE INFO Log message for DEEE on level LOGL_INFO
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# ! 'logging level all' overrides everything, be it stronger or weaker
logging_vty_test# logging level all notice
logging_vty_test# logging level eee debug
logging_vty_test# log-sweep eee
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level all notice
logging_vty_test# logging level eee fatal
logging_vty_test# log-sweep eee
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# ! Deprecated 'logging level all everything' lifts the globally forced level
logging_vty_test# logging level all everything
logging_vty_test# log-sweep eee
DEEE FATAL Log message for DEEE on level LOGL_FATAL


logging_vty_test# ! Now do the same dance with the new 'logging level force-all' commands
logging_vty_test# logging level force-all fatal
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level force-all error
logging_vty_test# log-sweep
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level force-all notice
logging_vty_test# log-sweep
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level force-all debug
logging_vty_test# log-sweep
DAA DEBUG Log message for DAA on level LOGL_DEBUG
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB DEBUG Log message for DBB on level LOGL_DEBUG
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC DEBUG Log message for DCCC on level LOGL_DEBUG
DCCC INFO Log message for DCCC on level LOGL_INFO
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD DEBUG Log message for DDDDD on level LOGL_DEBUG
DDDDD INFO Log message for DDDDD on level LOGL_INFO
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE DEBUG Log message for DEEE on level LOGL_DEBUG
DEEE INFO Log message for DEEE on level LOGL_INFO
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# ! 'force-all' overrides everything, be it stronger or weaker
logging_vty_test# logging level force-all notice
logging_vty_test# logging level eee debug
logging_vty_test# log-sweep eee
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level force-all notice
logging_vty_test# logging level eee fatal
logging_vty_test# log-sweep eee
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# ! lift the globally forced level
logging_vty_test# no logging level force-all
logging_vty_test# log-sweep
DAA DEBUG Log message for DAA on level LOGL_DEBUG
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL


logging_vty_test# ! test 'set-all'
logging_vty_test# logging level set-all fatal
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level set-all error
logging_vty_test# log-sweep
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level set-all notice
logging_vty_test# log-sweep
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level set-all info
logging_vty_test# log-sweep
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC INFO Log message for DCCC on level LOGL_INFO
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD INFO Log message for DDDDD on level LOGL_INFO
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE INFO Log message for DEEE on level LOGL_INFO
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level set-all debug
logging_vty_test# log-sweep
DAA DEBUG Log message for DAA on level LOGL_DEBUG
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB DEBUG Log message for DBB on level LOGL_DEBUG
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC DEBUG Log message for DCCC on level LOGL_DEBUG
DCCC INFO Log message for DCCC on level LOGL_INFO
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD DEBUG Log message for DDDDD on level LOGL_DEBUG
DDDDD INFO Log message for DDDDD on level LOGL_INFO
DDDDD NOTICE Log message for DDDDD on level LOGL_NOTICE
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE DEBUG Log message for DEEE on level LOGL_DEBUG
DEEE INFO Log message for DEEE on level LOGL_INFO
DEEE NOTICE Log message for DEEE on level LOGL_NOTICE
DEEE ERROR Log message for DEEE on level LOGL_ERROR
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level set-all fatal
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level dddd error
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level ccc notice
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level bb info
logging_vty_test# log-sweep
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# logging level aa debug
logging_vty_test# log-sweep
DAA DEBUG Log message for DAA on level LOGL_DEBUG
DAA INFO Log message for DAA on level LOGL_INFO
DAA NOTICE Log message for DAA on level LOGL_NOTICE
DAA ERROR Log message for DAA on level LOGL_ERROR
DAA FATAL Log message for DAA on level LOGL_FATAL
DBB INFO Log message for DBB on level LOGL_INFO
DBB NOTICE Log message for DBB on level LOGL_NOTICE
DBB ERROR Log message for DBB on level LOGL_ERROR
DBB FATAL Log message for DBB on level LOGL_FATAL
DCCC NOTICE Log message for DCCC on level LOGL_NOTICE
DCCC ERROR Log message for DCCC on level LOGL_ERROR
DCCC FATAL Log message for DCCC on level LOGL_FATAL
DDDDD ERROR Log message for DDDDD on level LOGL_ERROR
DDDDD FATAL Log message for DDDDD on level LOGL_FATAL
DEEE FATAL Log message for DEEE on level LOGL_FATAL

logging_vty_test# list
...
  logp (aa|bb|ccc|dddd|eee|lglobal|llapd|linp|lmux|lmi|lmib|lsms|lctrl|lgtp|lstats|lgsup|loap|lss7|lsccp|lsua|lm3ua|lmgcp|ljibuf|lrspro|lns|lbssgp) (debug|info|notice|error|fatal) .LOGMESSAGE
...

logging_vty_test# logp?
  logp  Print a message on all log outputs; useful for placing markers in test logs

logging_vty_test# logp ?
  aa       Antropomorphic Armadillos (AA)
  bb       Bidirectional Breadspread (BB)
  ccc      Chaos Communication Congress (CCC)
  dddd     Dehydrated Dribbling Duck Dunkers (DDDD)
  eee      Exhaustive Entropy Extraction (EEE)
  lglobal  Library-internal global log family
  llapd    LAPD in libosmogsm
  linp     A-bis Intput Subsystem
  lmux     A-bis B-Subchannel TRAU Frame Multiplex
  lmi      A-bis Input Driver for Signalling
  lmib     A-bis Input Driver for B-Channels (voice)
  lsms     Layer3 Short Message Service (SMS)
  lctrl    Control Interface
  lgtp     GPRS GTP library
  lstats   Statistics messages and logging
  lgsup    Generic Subscriber Update Protocol
  loap     Osmocom Authentication Protocol
  lss7     libosmo-sigtran Signalling System 7
  lsccp    libosmo-sigtran SCCP Implementation
  lsua     libosmo-sigtran SCCP User Adaptation
  lm3ua    libosmo-sigtran MTP3 User Adaptation
  lmgcp    libosmo-mgcp Media Gateway Control Protocol
  ljibuf   libosmo-netif Jitter Buffer
  lrspro   Remote SIM protocol
  lns      GPRS NS layer
  lbssgp   GPRS BSSGP layer

logging_vty_test# logp lglobal ?
  debug   Log debug messages and higher levels
  info    Log informational messages and higher levels
  notice  Log noticeable messages and higher levels
  error   Log error messages and higher levels
  fatal   Log only fatal messages

logging_vty_test# logp lglobal info ?
  LOGMESSAGE  Arbitrary message to log on given category and log level

logging_vty_test# logging level set-all notice

logging_vty_test# logp aa error This is the log message
DAA ERROR This is the log message

logging_vty_test# logp lglobal debug This log message is not echoed
logging_vty_test# logp lglobal notice This log message is echoed
DLGLOBAL NOTICE This log message is echoed