log stderr
 logging filter all 1
 logging color 1
 logging print level 1
 logging print category 1
 logging print category-hex 0
 logging print file basename last
 #logging print timestamp date
 logging print extended-timestamp 1
 logging level set-all debug
log file current_log/${_name}.log
 logging filter all 1
 logging color 1
 logging print level 1
 logging print category 1
 logging print category-hex 0
 logging print file basename last
 #logging print timestamp date
 logging print extended-timestamp 1
 logging level set-all debug
log gsmtap 127.0.0.1
 logging filter all 1
 logging level set-all debug