Hello, everyone!
Today, I will show you commands and examples for display and setting logs on the OLT. This is the second and last article about this theme.
In this article, I will show you commands for adding, activating, deactivating, and deleting a syslog server. Then, commands for log level, activation, and deactivation of sending events to a syslog server. And the end, there are many commands for display setting logs to syslog server.
The commands for adding and activating the log server
TEST(config)#loghost add X.X.0.2 server
{<cr>|local0<K>|local1<K>|local2<K>|local3<K>|local4<K>|local5<K>|local6<K>|loc al7<K>|severity<K>|transport<K>|vpn-instance<K> }:
Command:
loghost add X.X.0.2 server
Warning: There is security risk as this operation enables a non secure syslog protocol
In this command, we have to put the IP address of the syslog server – X.X.0.2 and its name – server.
After adding the log server, we have to activate it with one of the next commands:
TEST(config)#loghost activate ip X.X.0.2
TEST(config)#loghost activate name server
The commands for deactivating and deleting a log server
These two commands, we can use when we want to deactivate the log server:
TEST(config)#loghost deactivate name server
TEST(config)#loghost deactivate ip X.X.0.2
These two commands, we can use when we want to delete log server configuration:
TEST(config)#loghost delete name server
TEST(config)#loghost delete ip X.X.0.2
The command for display syslog output configuration
When we want to see settings for sending logs to syslog server.
TEST(config)#display syslog output configuration
{ <cr>||<K> }:
Command:
display syslog output configuration
------------------------------------------------------------------------------
LEVEL OUTPUT
------------------------------------------------------------------------------
EMERGENCY YES
ALERT YES
CRITICAL YES
ERROR YES
WARNING YES
NOTICE YES
INFORMATIONAL YES
DEBUG YES
------------------------------------------------------------------------------
The output indicates the output level of the syslog. There are seven levels: EMERGENCY, ALERT, CRITICAL, ERROR, WARNING, NOTICE, INFORMATIONAL, and DEBUG. The first three levels are very important levels for the monitoring device.
The command for display syslog priority:
TEST(config)#display syslog priority
{ <cr>||<K> }:
Command:
display syslog priority
----------------------------------------------------------------------------
Syslog Facility : default
Syslog Severity : default
----------------------------------------------------------------------------
Log Facility : default
Log Severity : default
Alarm-event Facility: default
Alarm-event Severity: default
Igmp Facility : default
Igmp Severity : default
Voip Facility : default
Voip Severity : default
----------------------------------------------------------------------------
Priority indicates the priority of the syslog information.
The command for displaying syslog version:
TEST(config)#display syslog version
{ <cr>||<K> }:
Command:
display syslog version
Syslog protocol version: rfc3164
Version indicates the syslog protocol version.
The command for displaying syslog source:
TEST(config)#display syslog source
{ <cr>||<K> }:
Command:
display syslog source
syslog source interface: auto
If we want to see log server configuration, we can use the next command:
TEST(config)#display loghost list ip X.X.0.2
{ <cr>||<K> }:
Command:
display loghost list ip X.X.0.2
Log server configuration:
IP address : X.X.0.2
Host name : server
Terminal state : Normal
Facility : local0 local1 local2 local3 local4 local5 local6 local7
Transport Mode : UDP
SSL Policy : --
VPN Instance : --
Severity : emergency alert critical error warning notice informational debug
Or we can use this command:
TEST(config)#display loghost list name server
{ <cr>||<K> }:
Command:
display loghost list name server
Log server configuration:
IP address : X.X.0.2
Host name : server
Terminal state : Normal
Facility : local0 local1 local2 local3 local4 local5 local6 local7
Transport Mode : UDP
SSL Policy : --
VPN Instance : --
Severity : emergency alert critical error warning notice informational debug
With these commands, we can see information about syslog server – IP address, hostname, terminal state, etc.
The commands for activating and deactivating of sending alarm events to a log server
TEST(config)#syslog enable alarm-event
TEST(config)#syslog disable alarm-event
The command for logging level
TEST(config)#syslog output all/emergency/alert/critical/error/waring/notice/informational/debug
The output indicates the output level of the syslog. The main levels are EMERGENCY, ALERT and CRITICAL.
For more information, read my previous article about this theme: Command for display and configuration logs on the OLT (1)
Thank you!
