From: Radioactive Frog (pbhatkoti@gmail.com)
Date: Mon Oct 22 2007 - 02:49:17 ART
Hi there,
It sounds that you've issue with a few phones which are drawing more power
then per port capacity.
remember 15.4w per port is the max.
<Snip>
*Q.* How does power management work on Cisco Catalyst 3560-E PoE switches?
*A.* The 24-port and 48-port Cisco Catalyst 3560-E switches support a
maximum of 15.4W per port of -48VDC power on all ports over standard
Category 3 and 5 unshielded twisted-pair (UTP) cable up to 100 meters. The
Cisco Catalyst 3560-E PoE switches monitor and track the requests for power
and only grant power when it is available. If the connected PD draws more
power, which results in exceeding the system power budget that is available
on the switch, then power will be denied to that port and the PD will not
power up. If power is denied, the switch rechecks the power budget
periodically (every 15 seconds), and continues to attempt to grant the
request for power. If power is granted, the switch updates the power budget.
Additional power management features are described later in this section.
</snip>
more info here...
http://www.cisco.com/en/US/products/ps7078/products_qanda_item0900aecd805bacc7.shtml
Frog
This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:17 ART