modemBasic

Updated June 9, 2022. Written for LMS Version 6.3.

Overview

Uplogix Local Managers ship with a default ruleset for monitoring v.92 modems. The primary goal of this ruleset is to ensure out-of-band is available when it is needed.

Ruleset

The default ruleset is called modemBasic.

[admin@UplogixLM]# show ruleset modemBasic
ruleset modemBasic
description Rules for testing the internal modem
rules
modemLineInUse | modemLineDisconnected

exit
exit

Two rules are included in modemBasic:

  • modemLineInUse
  • modemLineDisconnected

This ruleset is used in conjunction with the modem monitor and examines the responses received from the modem.

Rules

Let's take a closer look at each rule.

modemLineInUse

rule modemLineInUse
action alarm MODEM_LINE_IN_USE
conditions
modem.response equals "LINE IN USE" :2i
exit
exit

This rule looks for the response LINE IN USE and throws an alarm if detected. The 2i modifier instructs the Local Manager to wait two intervals before throwing an alarm.

Since the modem line should only be in use when the Local Manager is operating out-of-band, this rule will help identify a problem that may prevent dial-in or dial-out when needed.

modemLineDisconnected

[admin@UplogixLM]# show rule modemLineDisconnected
rule modemLineDisconnected
action alarm MODEM_LINE_DISCONNECTED
conditions
modem.response equals "NO DIALTONE" :2i OR
modem.response equals "NO LINE" :2i OR
modem.response matches "1\.40\s+OK" :2i
exit
exit

This rule looks for multiple responses that may indicate a problem with the attached phone line. The 2i modifier instructs the Local Manager to wait two intervals before throwing an alarm

  • NO DIALTONE - the modem was unable to detect a dialtone when dialing
  • NO LINE - the modem was unable to detect a line when dialing
  • 1\.40\s+OK - this response indicates a problem with the line voltage (bad line)

Any of the above responses are good indications that out-of-band may fail when initiated. Use this rule to get notified of problems and fix them before a network outage.

Scheduling

Modem monitors are not scheduled by default, but are recommended for all Local Managers that rely on v.92 for out-of-band access.

To schedule the modem monitor with the modemBasic ruleset, log into the Local Manager and change to the modem resource.

Use the config monitor modem command to schedule the monitor. Use the following syntax:

[super@UplogixLM (modem)]# config monitor modem modemBasic
Validate scheduled monitor(modem)?  (This will execute the job now.) (y/n): y
Job was scheduled 8: [Interval: 00:00:30 Mask: * * * * *] rulesMonitor modem none modemBasic 30

Not finding what you're looking for?

The Uplogix Technical Support team is standing by 24/7/365 to answer any questions you may have about the installation, configuration, and usage of our products. Give us a call at 888.663.6869 or email us at support@uplogix.com.

About Uplogix

Uplogix is the most evolved out-of-band solution on the market. Our intelligent console server monitors network devices and takes actions directly over the console port, like an onsite technician plugging in a laptop.

Want to find out how Uplogix can help manage your network? Drop us a note!

Learn more:

Solutions Products Resource Center About Us Schedule a demo

© 2022 Uplogix, Inc., All Rights Reserved.

Contact Uplogix Support
+1 (888) 663-6869
+1 (512) 857-7070
Sales Assistance
General Inquiries