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Cisco 3750 fiber switch

I have a 12 port cisco 3750 fiber switch connected to several cisco 2950's throughout the building. Any reason why a dead (power failure) 2950 on one port (say f0/3) would take out all the other ports on the 3750?
Thanx

Tom Scott

Surges often accompany power failures. If the power failure was internal to the failed 2950 or the surge was external to the 2950 and it did not have proper power conditioning (via a surge supressor or UPS), the surge could have then traveled over the Ethernet cable to the 3750 and damaged it as well.

- Tom

Frabble

By fiber switch does that mean all connections to the 3750 to 2950 are fibre - Ethernet interface internals provide isolation so power faults on a device should not affect another. If fibre is used then there is no electrical connectivity involved.

What do you mean when you say the other ports were all taken out?

RedeemerUC

ASKER

Yep - all the connections are fiber.
What I mean is all the other port(s) traffic was dead. The actual ports were lit and it looked like the connections were active, but I couldn't ping or connect to any of the other 2950's. Once the power was restored to the 2950 on port 0/3, traffic resumed and everything flowed normally. Logs showed nothing. I'm going over each port config to see if anything out of the norm. Weird.

Craig Beck

Maybe the fiber switch hung? A dead switch on one port shouldn't cause the other ports to go down.

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rochey2009