Solved

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

Posted on 2011-09-06
5
251 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
5 Comments
 
LVL 16

Expert Comment

by:sjklein42
Comment Utility
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 82

Expert Comment

by:Dave Baldwin
Comment Utility
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
Comment Utility
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 82

Expert Comment

by:Dave Baldwin
Comment Utility
There is no particular reason to think the Fluke would interfere with either of those equipments.
0
 
LVL 21

Accepted Solution

by:
eeRoot earned 500 total points
Comment Utility
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

How to improve team productivity

Quip adds documents, spreadsheets, and tasklists to your Slack experience
- Elevate ideas to Quip docs
- Share Quip docs in Slack
- Get notified of changes to your docs
- Available on iOS/Android/Desktop/Web
- Online/Offline

Join & Write a Comment

The worst thing when starting a new job is when the previous Network Administrator left behind no documentation. How do you get into the devices? If you've been in this situation or just accidently mistyped your password, this article will hopefully…
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…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

771 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

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now