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The Fluke tester uses a sweep frequency up to only 1200 Hz. &nbsp;It seems very unlikely that would interfere with the switch.<br />
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But it does seem a bit too coincidental and not outside the realm of possibility.<br />
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One way to tell for sure is to do it again.<br />
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:)
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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.

:)

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

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I was thinking the Ruckus Zone Director could have been the problem since it was in the alarm state. &nbsp;Could the Fluke trigger that with the Ruckus?
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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?

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There is no particular reason to think the Fluke would interfere with either of those equipments.
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There is no particular reason to think the Fluke would interfere with either of those equipments.

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My technician had our Fluke mt8200 on while trouble shooting a bad Cat 5 and it was lying on top of our HP Procurve. &nbsp;The switch locked up and the Ruckus Zone Director next to it went into alarm state also. &nbsp;Could the Fluke have created a problem with parasitic oscillations &nbsp;or was this a coincidence. &nbsp;
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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.  

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

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.