From: Daniel Fischer (Daniel.Fischer@gmx.net)
Date: Mon Oct 22 2007 - 05:45:08 ART
Hi
the total power budget of a 48 port 3560 poe switch only allows 24 poe devices in the highest power class (15.4Watts) per switch. If your phones are in the highest class you need to spread them among your switches to stay within the 24 poe port threshold. You could also replace the 48 port switches with 24 port models to solve your power problem.
Daniel
-------- Original-Nachricht --------
> Datum: Mon, 22 Oct 2007 07:53:48 +0300
> Von: "A.G. Ananth Sarma (GMail)" <ananth.sarma@gmail.com>
> An: "Cisco certification" <ccielab@groupstudy.com>
> Betreff: Voice Query - Unable to use all the ports on 3560 to connect IP Phones
> Guys sorry or posting this here. Still I wonder if someone can help me in
> this?
>
> We have implemented IP Telephony in our company. We use 3560 PoE - 48
> port switches.
>
> When connecting more than 25 IP phones, it takes lot of time to boot the
> IP
> Phones and sometimes they do not come up.
>
> The configuration of ports are all same. Is there a known power issue
> here?
> Our Cisco dealer says so. Is there any way to tweak the config to
> accommodate at least 40 ~ 45 IP phones. At present we spread the load in
> to
> many 3560 switches with maximum of 25 phones on each.
>
> Thanks in in advance.
>
>
>
>
> Regards,
>
> A.G. Ananthasubramania Sarma
>
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