display logbuffer

Function

The display logbuffer command displays information recorded in the log buffer.

Format

display logbuffer [ size size | slot slot-id | module module-name | security | level { severity | level } ] ^*

display logbuffer summary [ level severity | slot slot-id ] ^*

display logbuffer order by module

Parameters

Parameter	Description	Value
size size	Displays the specified number of logs recently generated in the log buffer.	The value is an integer that ranges from 1 to 1024.
module module-name	Displays logs of a specified module in the log buffer.	Enumerated type. The value depends on the registered module.
security	Specifies the security logs.	-
slot slot-id	Displays logs in a specified slot.	The value must be set according to the device configuration.
level { severity \| level }	Displays logs of specified severity name or ID. severity specifies the severity ID. level specifies the severity name.	The value of severity is an integer that ranges from 0 to 7. 0: Emergencies 1: Alert 2: Critical 3: Error 4: Warning 5: Notification 6: Informational 7: Debugging The value of level is the enumerated type: emergencies alert critical error warning notification informational debugging
summary	Displays the summary of logs in the log buffer.	-
order by module	Displays logs in the order of the modules to which they belong to. NOTE: Logs in the log buffer are classified and displayed by the modules they belong to. Modules are displayed by the time that the module's first log is generated in the log buffer in descending order. Logs in each module are displayed by the time they are generated in descending order.	-

Views

All views

Default Level

3: Management level

Usage Guidelines

The display logbuffer command displays the information of recent logs. If the actual number of logs is smaller than the value specified by size, the system displays logs of the actual number.

Example

# Display all the logs in the log buffer.

<HUAWEI> display logbuffer
Logging buffer configuration and contents : enabled                             
Allowed max buffer size : 1024                                                  
Actual buffer size : 512                                                        
Channel number : 4 , Channel name : logbuffer                                   
Dropped messages : 0                                                            
Overwritten messages : 0                                                        
Current messages : 43                                                           
                                                                                
Oct 16 2013 06:06:48 HUAWEI %%01VFS/4/DISKSPACE_NOT_ENOUGH(l)[3]:Disk space is 
insufficient. The system begins to delete unused log files.                     
Oct 10 2013 19:06:48 HUAWEI %%01VFS/4/DISKSPACE_NOT_ENOUGH(l)[4]:Disk space is 
insufficient. The system begins to delete unused log files.                     
Oct  7 2013 16:36:48 HUAWEI %%01VFS/4/DISKSPACE_NOT_ENOUGH(l)[5]:Disk space is 
insufficient. The system begins to delete unused log files.                     
Oct  5 2013 09:12:22 HUAWEI %%01EZOP/3/PROCESS_STOP(l)[6]:Easy-operation upgrad
e process has been stopped. (Reason=There is a configuration file in this device)                         
Oct  5 2013 09:09:29 HUAWEI %%01IFNET/4/IF_ENABLE(l)[7]:Interface XGigabitEther
net0/0/4 has been available.                                                    
Oct  5 2013 09:09:29 HUAWEI %%01IFNET/4/IF_ENABLE(l)[8]:Interface XGigabitEther
net0/0/3 has been available.                                                    
Oct  5 2013 09:09:29 HUAWEI %%01IFNET/4/IF_ENABLE(l)[9]:Interface XGigabitEther
net0/0/2 has been available.                                                    
Oct  5 2013 09:09:29 HUAWEI %%01IFNET/4/IF_ENABLE(l)[10]:Interface XGigabitEthe
rnet0/0/1 has been available.                                                   
Oct  5 2013 09:09:29 HUAWEI %%01IFNET/4/CARD_ENABLE(l)[11]:Board 0 card 1 has b
een available.                                                                  
Oct  5 2013 09:09:24 HUAWEI %%01ALML/4/ENT_PLUG_IN(l)[12]:LS51S24CA frame[1] bo
ard[0]'s card[1] was plugged in.                                                
Oct  5 2013 09:09:22 HUAWEI %%01IFNET/4/IF_ENABLE(l)[13]:Interface GigabitEther
net0/0/24 has been available.                                                   
Oct  5 2013 09:09:22 HUAWEI %%01IFNET/4/IF_ENABLE(l)[14]:Interface GigabitEther
net0/0/23 has been available.                                                   
Oct  5 2013 09:09:21 HUAWEI %%01IFNET/4/IF_ENABLE(l)[15]:Interface GigabitEther
net0/0/22 has been available.                                                   
Oct  5 2013 09:09:21 HUAWEI %%01IFNET/4/IF_ENABLE(l)[16]:Interface GigabitEther
net0/0/21 has been available.                                                   
Oct  5 2013 09:09:20 HUAWEI %%01IFNET/4/IF_ENABLE(l)[17]:Interface GigabitEther
net0/0/20 has been available.                                                   
Oct  5 2013 09:09:20 HUAWEI %%01IFNET/4/IF_ENABLE(l)[18]:Interface GigabitEther
net0/0/19 has been available.                                                   
Oct  5 2013 09:09:20 HUAWEI %%01IFNET/4/IF_ENABLE(l)[19]:Interface GigabitEther
net0/0/18 has been available.                                                   
Oct  5 2013 09:09:19 HUAWEI %%01IFNET/4/IF_ENABLE(l)[20]:Interface GigabitEther
net0/0/17 has been available.                                                   
Oct  5 2013 09:09:19 HUAWEI %%01IFNET/4/IF_ENABLE(l)[21]:Interface GigabitEther
net0/0/16 has been available.                                                   
Oct  5 2013 09:09:18 HUAWEI %%01IFNET/4/IF_ENABLE(l)[22]:Interface GigabitEther
net0/0/15 has been available.                                                   
Oct  5 2013 09:09:18 HUAWEI %%01IFNET/4/IF_ENABLE(l)[23]:Interface GigabitEther
net0/0/14 has been available. 
  ---- More ----

# Display logs in the order of the modules they belong to.

<HUAWEI> display logbuffer order by module
Logging buffer configuration and contents : enabled
Allowed max buffer size : 1024
Actual buffer size : 512
Channel number : 4 , Channel name : logbuffer
Dropped messages : 0
Overwritten messages : 0
Current messages : 113

Nov 10 2010 16:16:53 HUAWEI %%01DHCP/4/DHCP_INFO_LOG_DHCP_REMOTEBACKUP_FAILED(l)[0]:Saving the dynamic binding table to a remot
e server failed. Ensure that the FTP/SFTP server address is reachable and the FTP/SFTP user name and password and the file path are 
correct.                                                                                                                            
Nov 10 2010 10:38:23 HUAWEI %%01INFO/4/SUPPRESS_LOG(l)[1]:Last message repeated 1 times.(InfoID=1077493787, ModuleName=SHELL, I
nfoAlias=LOGINFAILED)                                                                                                               
Nov 10 2010 10:19:42 HUAWEI %%01SHELL/4/LOGINFAILED(s)[2]:Failed to login. (Ip=10.134.27.157, UserName=**, Times=3, AccessType=
TELNET, VpnName=)                                                                                                                   
Nov 10 2010 10:19:42 HUAWEI %%01SHELL/4/LOGIN_FAIL_FOR_INPUT_TIMEOUT(s)[3]:Failed to log in due to timeout.(Ip=10.134.27.157, U
serName=**, Times=3, AccessType=TELNET, VpnName=)                                                                                   
Nov 10 2010 10:18:02 HUAWEI %%01SHELL/4/LOGINFAILED(s)[4]:Failed to login. (Ip=10.134.27.157, UserName=**, Times=2, AccessType=
TELNET, VpnName=)                                                                                                                   
Nov 10 2010 10:18:02 HUAWEI %%01SHELL/4/LOGIN_FAIL_FOR_INPUT_TIMEOUT(s)[5]:Failed to log in due to timeout.(Ip=10.134.27.157, U
serName=**, Times=2, AccessType=TELNET, VpnName=)                                                                                   
Nov 10 2010 10:16:27 HUAWEI %%01SHELL/4/LOGINFAILED(s)[6]:Failed to login. (Ip=10.134.27.157, UserName=**, Times=1, AccessType=
TELNET, VpnName=)                                                                                                                   
Nov 10 2010 10:16:27 HUAWEI %%01SHELL/4/LOGIN_FAIL_FOR_INPUT_TIMEOUT(s)[7]:Failed to log in due to timeout.(Ip=10.134.27.157, U
serName=**, Times=1, AccessType=TELNET, VpnName=)                                                                                   
Nov  9 2010 19:51:57 HUAWEI %%01SHELL/4/LOGINFAILED(s)[8]:Failed to login. (Ip=10.134.27.157, UserName=**, Times=1, AccessType=
TELNET, VpnName=)

**Table 1** Description of the display logbuffer command output
Item	Description
Logging buffer configuration and contents	Whether the device is enabled to output logs to the log buffer: enabled disabled To configure the device to output logs to the log buffer, run the info-center logbuffer command.
Allowed max buffer size	Maximum size of the log buffer.
Actual buffer size	Actual size of the log buffer. To set the log buffer size, run the info-center logbuffer size command.
Channel number	Number of the channel used to send logs to the log buffer. To configure the number of a channel used to send logs to the log buffer, run the info-center channel command.
Channel name	Name of the channel used to send logs to the log buffer. To configure the name of a channel used to send logs to the log buffer, run the info-center channel name command.
Dropped messages	Number of dropped messages.
Overwritten messages	Number of overwritten messages.
Current messages	Number of current messages.

# Display the summary of information in the log buffer.

<HUAWEI> display logbuffer summary
      SLOT EMERG ALERT  CRIT ERROR  WARN NOTIF  INFO DEBUG                      
         0     0     0     0    36   476     0     0     0

**Table 2** Description of the display logbuffer summary command output
Item	Description
SLOT	ID of the slot where logs are generated.
EMERG	Number of logs of emergency.
ALERT	Number of logs of alert.
CRIT	Number of logs of critical.
ERROR	Number of logs of error.
WARN	Number of logs of warning.
NOTIF	Number of logs of notification.
INFO	Number of logs of informational.
DEBUG	Number of logs of debugging.