display logbuffer

Function

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

Format

display logbuffer [ size value | slot slot-id | module module-name | security | level { severity | emergencies | alert | critical | error | warning | notification | informational | debugging } ] ^*

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

display logbuffer [ common-log | sec-log ] [ size value | slot slot-id | module module-name | security | vsys vsys-name | level { severity | emergencies | alert | critical | error | warning | notification | informational | debugging } ] ^*

display logbuffer order by module

Parameters

Parameter	Description	Value
size value	Displays the number of information items in the specified log buffer.	The value is in the range of 1 to 1024.
slot slot-id	Specifies the slot number.	-
module module-name	Specifies the name of a module.	-
security	Specifies the security logs.	-
level severity	Displays the severity level of the specified information.	The value is in the range of 0 to 7.
emergencies	Displays the pieces of the logs of the emergency severity level.	The severity level of the information is 0.
alert	Displays the pieces of the logs of the alerts severity level.	The severity level of the information is 1.
critical	Displays the pieces of the logs of the critical severity level.	The severity level of the information is 2.
error	Displays the pieces of the logs of the errors severity level.	The severity level of the information is 3.
warning	Displays the pieces of the logs of the warning severity level.	The severity level of the information is 4.
notification	Displays the pieces of the logs of the notification severity level.	The severity level of the information is 5.
informational	Displays the pieces of the logs of the informational severity level.	The severity level of the information is 6.
debugging	Displays the pieces of the logs of the emergency severity level.	The severity level of the information is 7.
summary	Displays the summary of the log buffer.	-
common-log	Displays information in the common log buffer.	-
sec-log	Displays information in the security log buffer.	-
vsys vsys-name	Displays information in the log buffer of the virtual system.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported.
slot-id	Specifies the slot ID.	-
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

If no parameter is specified, the display logbuffer command displays all logs of the public system recorded in the log buffer. To view logs in a virtual system, specify vsys vsys-name or run the display logbuffer command in the virtual system view.

The display logbuffer summary and display logbuffer order by module commands cannot be executed in a virtual system. To view logs in a virtual system, run the display logbuffer vsys vsys-name command to view logs of a specified virtual system.

If the information number in the current log buffer is smaller than size value, the actual items of the log information are displayed.

Example

# Display information about the log buffer of the root system.

<sysname> display logbuffer
Logging buffer configuration and contents : enabled                                                                                 
Allowed max buffer size : 2048                                                                                                      
Actual buffer size : 1024                                                                                                           
Channel number : 4 , Channel name : logbuffer                                                                                       
Dropped messages : 592                                                                                                              
Overwritten messages : 237                                                                                                          
Current messages : 3                                                                                                                
                                                                                                                                    
Aug 15 2017 10:24:07+10:00 DST liuyan %%01SHELL/5/CMDRECORD(s)[0]:Recorded command information. (Task=VT0, Ip=1.1.1.1, VpnName=,
 User=root, AuthenticationMethod="Local-user", Command="info-center logbuffer size 512")                                            
Aug 15 2017 10:23:35+10:00 DST liuyan %%01SHELL/6/DISPLAY_CMDRECORD(s)[1]:Recorded display command information. (Task=VT0, Ip=8.32.2
3.211, VpnName=, User=root, AuthenticationMethod="Local-user", Command="display logbuffer vsys a")                                  
Aug 15 2017 10:23:07+10:00 DST liuyan %%01ATK/4/FIREWALLATCK(l)[0]:AttackType="Large ICMP attack", slot=" ", cpu="0", receive interf
ace="GE0/0/0 ", proto="ICMP", ip="10.10.10.1->10.1.1.1", begin time=2017/08/15 10:23:05 DST, end time=2017/08/15 10:23:05 DST, tot
al packets="1", max speed="0", Action="discard".

Table 1 shows the description of the display logbuffer command output.

**Table 1** Description of the **display** **logbuffer** command output
Item	Description
Logging buffer configuration and contents	Status of the log buffer on the root system
Allowed max buffer size	Maximum capacity of the log buffer on the root system
Actual buffer size	Actual capacity of the log buffer on the root system
Channel number	Channel number.
Channel name	Channel name.
Dropped messages	Dropped messages of the log buffer on the root system
Overwritten messages	Overwritten messages of the log buffer on the root system
Current messages	Current messages.

# Display information about the log buffer of the virtual system.

<sysname> display logbuffer vsys vsys1
Logging buffer configuration and contents : enabled                                                                                 
Allowed max buffer size : 4096                                                                                                      
Actual buffer size : 4096                                                                                                           
Channel number : 4 , Channel name : logbuffer                                                                                       
Dropped messages : 0                                                                                                                
Overwritten messages : 0                                                                                                            
Current messages : 3

Table 2 shows the description of the display logbuffer vsys vsys1 command output.

**Table 2** Description of the **display logbuffer vsys vsys1** command output
Item	Description
Logging buffer configuration and contents	Status of the log buffer on the virtual system
Allowed max buffer size	Maximum capacity of the log buffer shared among all virtual systems
Actual buffer size	Actual capacity of the log buffer shared among all virtual systems
Channel number	Channel number.
Channel name	Channel name.
Dropped messages	Dropped messages of the log buffer shared among all virtual systems
Overwritten messages	Overwritten messages of the log buffer shared among all virtual systems
Current messages	Current messages of a single virtual system, namely, current related messages of vsys1

# Display the SNMP-generated log messages saved in the log buffer.

<sysname> display logbuffer module snmp
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: 0

Nov 27 2014 11:02:19 HUAWEI %%01SNMP/4/AR_PAF_FAILED(l)[2]:Failed to read PAF or License.

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

<sysname> display logbuffer order by module
Logging buffer configuration and contents : enabled
Allowed max buffer size : 1024
Actual buffer size : 1024
Channel number : 4 , Channel name : logbuffer
Dropped messages : 0
Overwritten messages : 0
Current messages : 8

2015/10/31 10:05:26 242 %%01SOCKET/1/BINDPEERIP(l)[0]:Failed to bind the peer IP because a socket with same state already existed.
2015/10/31 10:05:24 242 %%01CFM/3/RECOVERCMDFAIL(s)[1]:Failed to recover configuration test under view test.
2015/10/31 10:05:21 242 %%01CFM/5/SAVECFG_YES(s)[2]:When being asked whether to save current configuration, the user chose Y.
2015/10/31 10:05:15 242 %%01CFM/5/SUMRULECANCEL(l)[3]:The daylight-saving-time config is canceled.
2015/10/31 10:05:19 242 %%01INFO/4/RST_LOGB(s)[4]:When deciding whether to reset the logbuffer, the user chose test.
2015/10/31 10:05:13 242 %%01INFO/5/FILTERINFOID_FAIL(s)[5]:Failed to execute the info-center filter-id command. (Task=test, Ip=test, VpnName=test, User=test, Parameter="test")
2015/10/31 10:05:17 242 %%01SNMP/4/SNMP_LOCK_FULL(s)[6]:SNMP lock queue has been full.
2015/10/31 10:05:11 242 %%01SNMP/6/SNMP_CNFM_CHANGEUDPORT(s)[7]:When being asked whether to execute the command "test", the user chose test.

**Table 3** Description of the display logbuffer command output
Item	Description
Logging buffer configuration and contents	Status of the logging buffer
Allowed max buffer size	Maximum logging buffer size
Actual buffer size	Actual logging buffer size
Channel number	Channel number
Channel name	Channel name
Dropped messages	Discarded messages
Overwritten messages	Superseded messages
Current messages	Current messages

# Display the summary of the log buffer.

<sysname> display logbuffer summary
      SLOT EMERG ALERT  CRIT ERROR  WARN NOTIF  INFO DEBUG                      
         9     0     0     0     0     0     0     0     0                      
         0     0     0     1    16   100     0     0     0                      
         3     0     0     4     1     5     0     0     0                      
       6/0     0     0     0     0     4     0     0     0                      
       6/1     0     0     0     0     0     0     0     0                      
       6/2     0     0     0     0     0     0     0     0                      
       6/3     0     0     0     0     0     0     0     0

**Table 4** Description of the display logbuffer summary command output
Item	Description
SLOT	The slot number
EMERG	Number of the logs at the emergency level
ALERT	Number of the logs at the alert level
CRIT	Number of the logs at the critical level
ERROR	Number of the logs at the error level
WARN	Number of the logs at the warning level
NOTIF	Number of the logs at the notification level
INFO	Number of the logs at the informational level
DEBUG	Number of the logs at the debugging level

# Displays information in the security log buffer.

<sysname> display logbuffer sec-log
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 : 0