How to configure the command log in Nokia SR/SAR

Administrators need to log device configurations and people who type commands to trace and rescue when there is a problem. The following is a guide to configure the command log, how to save the configuration log on the nokia 7750 SR series. The theory you can read on the nokia website. Here only practice introduction.

Step 1: Configure log filter

Configure the log filter to filter minor alerts because configuration changes are only alerted at minor. This part is only optional, it doesn’t matter if you add it or not. Main part in step 3.

/configure log filter 88
            default-action drop
            description "Log Filter to Command Log"
            entry 10 
                action forward
                match
                    severity eq minor
                exit 
            exit 

Step 2: configure log file-id

Choose a place to store long-term logs. There are many options, but here I show how to save the router’s memory cf3.

• The rollover interval is defined in minutes and determines how long a file will be used before it is closed and a new log file is created.

• The retention interval is defined in hours determines how long the file will be stored on the CF before it is deleted.

This part is only optional, it doesn’t matter if you add it or not. Main part in step 3.

/configure log file-id 88
            description "For command log"
            location cf3: 
            rollover 1440 retention 500 #option

It is recommended to store for the maximum time (500 hours) before deleting from the cf card.

Step 3: Configure the command log in Nokia SR

Main configuration to start getting command logging.

 /configure log log-id 88
            description "Command Log"
            filter 88 #step 1
            from change debug-trace 
            to file 88 #step 2
            no shutdown

You should configure the log file-id, log-filter and log-id with the same ID number for easy remembering and troubleshooting.

Show command log in 7750 SR

If you save the log to cf3 as above, there are 2 ways to check the log as follows:

Method 1: Use command on terminal to view current log file

/show log log-id 88

Method 2: Read log in file saved in cf3

#Check the log name
file dir cf3:/log

#Select the log file you want to open and use the following command to open it
file type cf3:/log/<log-file-name>

#Example
#file type cf3:/log/log8888-20170720-010017-UTC

If you have any problems, don’t hesitate to ask questions in the comments section below. Good luck!