Alcatel-Lucent 6850-48 Supplementary Manual

Configuration Files Overview

Working With Configuration Files

page 7-8

OmniSwitch AOS Release 6 Switch Management Guide

The number of files ending with the .err extension present in the switch’s /flash directory is set with the 

 command. You can set the switch to allow up to 25 error files in the /flash 

directory. Once the error file limit has been reached, the next error file generated will cause the error file 
with the oldest time stamp to be deleted. The following command sets the error file limit to 5 files:

-> configuration error-file limit 5

If you need to save files with the .err extension, you can either rename them so they no longer end with 
the .err extension or you may move them to another directory. 

Note. The default error file limit is one file. Unless you set the error file limit to a higher number, any 
subsequent error file will cause any existing error file to be overwritten.

The configuration syntax check command is used to detect potential syntax errors contained in a 
configuration file before it is applied to the switch. It is recommended that you check all configuration 
files for syntax errors before applying them to your switch.

To run a syntax check on a configuration file, use the 

 command. 

For example:

-> configuration syntax check asc.1.snap

Errors: 3

Log file name: check asc.1.snap.1.err

In this example, the proposed asc.1.snap configuration file contains three errors. As with the 

 command, an error file (.err) is automatically generated by the switch whenever 

an error is detected. By default, this file is placed in the root /flash directory. 

Note. The syntax, mac alloc, is automatically included in many snapshot files (e.g., configuration 
snapshot all). All mac alloc-related syntax is valid during switch boot up only (i.e., it cannot be applied 
while the switch is in run-time operation). Because snapshot files are commonly used as configuration 
files, syntax checks may detect mac alloc syntax and issue an error (along with a generated .err file). 
This is a valid switch function and does not represent a significant problem. If a mac alloc-related error is 
the only error detected, simply remove the syntax using a text editor, then re-check the file using the 
configuration syntax check command.

If a configuration file is located in another directory, be sure to specify the full path. For example:

-> configuration syntax check /flash/working/asc.1.snap

For error details, you can view the contents of a generated error file. To view the contents of an error file, 
use the more command. For example:

-> more asc.1.snap.1.err

For more information, refer to