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You could try a &quot;show support&quot; command and see if there is anything in the log at the end of the output besides the &quot;Last reboot due to power cycle&quot; message.
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You could try a "show support" command and see if there is anything in the log at the end of the output besides the "Last reboot due to power cycle" message.

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So we had two enterasys switches &quot;lose power&quot; last night. They were still plugged into the UPS when we came in this morning, but were off. When I replugged them into the same UPS, they came back up.<br />
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The weird thing was, the people on those switches couldn't get a connection, but it was displaying the &quot;limited or no connectivity,&quot; and our IP phones (which work off PoE) were powered up to a DHCP display, instead of displaying the persons name, ext., etc. But they must've been getting SOME power from the switch, which had no lights on it lit up at all. everything on the switch was completely off.<br />
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any ideas on what happened or how this is possible?
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So we had two enterasys switches "lose power" last night. They were still plugged into the UPS when we came in this morning, but were off. When I replugged them into the same UPS, they came back up.

The weird thing was, the people on those switches couldn't get a connection, but it was displaying the "limited or no connectivity," and our IP phones (which work off PoE) were powered up to a DHCP display, instead of displaying the persons name, ext., etc. But they must've been getting SOME power from the switch, which had no lights on it lit up at all. everything on the switch was completely off.

any ideas on what happened or how this is possible?

Switch w/no power (PoE still working??)

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.

Switches / Hubs

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.