Cisco C3560-24P spontaneously rebooting, when clients try to print

[onetechit]

I have a C3560-24P PoE switch, running on a very small network with nothing special about the endpoints or the configuration (5 laptops connecting via 1 wireless AP, 1 firewall uplink, a networked printer and one conference room phone using PoE.   That's it.)   I actually have inline power turned off on all the non-PoE device ports.

We are encountering a very strangle anomaly where if a client attempts to send a print job through the switch, to the network printer, the printer makes a noise as it if's begun to initialize and then the switch immediately goes into a reboot.   Also the reboot appears to immediately drain all he batter power from the UPS unit that it's connected to.   The unit is an APC SmartUPS 750 (500W, 750VA) and when the switch reboots the load on the UPS jumps to well above 100% until the switch appears to 'level out'.  Is that kind of power draw normal when rebooting a C3560?

Switch details:

IOS version: c3560-ipbasek9-mz.150-2.SE1

128MB Memory

512K nvram

Model Revision: F0

Any ideas what's causing this?

[paul driver]

Hello Robert,

Never heard of this before!,

Does it ever happen if the printer is not attached?
how is the printer attached to this switch?

res

Paul

Please don't forget to rate this post if it has been helpful.

[InayathUlla Sharieff]

Hi Robert,

This looks like a very strange issue which is never expected out of the box.  As the issue is happening only when the client send the print job so we believe everything else working fine except this?

What sort of printer is it? Whats the configuration of the port on which the switch is connected to?

Is the printer directly connected to the switch or through the patch port?

Can you test with any other printer if you have spare with you?

Regards

Inayath

[Leo Laohoo]

Dial into your switch and find a "crashinfo" file(s) or sub-directory.  If you do, post the last three files.