7911G with PoE switch issue

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Nov 18th, 2008
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i hearded somewhere that if you full all PoE ports on a switch with 7911G phones, there are resets very often. because i address the some problem with the specific ip phones on poe switches, does anybody know if there is any solution. Maybe a firmware upgrade for phones or the 2960E series switches which is new.


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bkoum Wed, 11/19/2008 - 06:15
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unfortunatly i dont have a cisco account to check this doc out but i hope u have right and there is no problem .

Rob Huffman Wed, 11/19/2008 - 07:09
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Hi Bill,

This calculator does not have the 2960E but I did the calculation for the;


With 24 7911 IP Phones and only 32.43 % of the available power was being consumed. So I don't see this as an issue.

Hope this helps!


bkoum Wed, 11/19/2008 - 09:29
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ok so i guess that C3560E-48PD-SF which is more powerfull it cant behave strangly although im not so sure that all these sudden resets comes from power misconfiguration.in my situation the switch is a 500 express 25 ports and i hope 2960E and 3560E be more steady.


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