Solved

Can a tone generator lying on top of a switch cause a problem?

Posted on 2011-09-06
5
261 Views
Last Modified: 2012-05-12
My technician had our Fluke mt8200 on while trouble shooting a bad Cat 5 and it was lying on top of our HP Procurve.  The switch locked up and the Ruckus Zone Director next to it went into alarm state also.  Could the Fluke have created a problem with parasitic oscillations  or was this a coincidence.  
0
Comment
Question by:nasupport
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 16

Expert Comment

by:sjklein42
ID: 36493745
The Fluke tester uses a sweep frequency up to only 1200 Hz.  It seems very unlikely that would interfere with the switch.

But it does seem a bit too coincidental and not outside the realm of possibility.

One way to tell for sure is to do it again.

:)
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 36493754
If your Procurve was that sensitive, you wouldn't be able to stack them at all.  And you're supposed to be to use the MT8200 on active networks so it doesn't seem likely.  More likely is a momentary AC power brown-out.
0
 

Author Comment

by:nasupport
ID: 36493766
I was thinking the Ruckus Zone Director could have been the problem since it was in the alarm state.  Could the Fluke trigger that with the Ruckus?
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 36493804
There is no particular reason to think the Fluke would interfere with either of those equipments.
0
 
LVL 22

Accepted Solution

by:
eeRoot earned 500 total points
ID: 36495266
I've used switches and routers as shelves for my fluke cable testers many times, never had a problem.  I suippose it's possible that if the cable tester was testing a cable that routed back into the switch, then maybe the switch couldn't figure out how to handle the noice from the test signal and locked up as a result.
0

Featured Post

Resolve Critical IT Incidents Fast

If your data, services or processes become compromised, your organization can suffer damage in just minutes and how fast you communicate during a major IT incident is everything. Learn how to immediately identify incidents & best practices to resolve them quickly and effectively.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Connecting to CISCO 4402 WLC 3 54
CCNA lab 6 52
Unidentified Network 12 58
Urgent !I am connecting a cisco catalyst 3560 switch amber light on port 15 50
I eventually solved a perplexing problem setting up telnet for a new switch.  I installed a new Cisco WS-03560X-24P switch connected to an existing Cisco 4506 running a WS-X4013-10GE Sup II-Plus. After configuring vlans and trunking,  I could no…
Arrow Electronics was searching for a KVM  (Keyboard/Video/Mouse) switch that could display on one single monitor the current status of all units being tested on the rack.
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question