Finally, use the
show port inline power
command to verify line card variables.
Column definitions:
Admin mode (
auto, never
).
Auto
will detect the PD class and apply power based on the top of that class.
Never
disallows port power and the searching algorithm for a PD on that port.
Oper mode (
on, off, faulty or deny
). Operational mode is the actual state of a port compared to the admin
column which is the administered state.
On
means power is supplied by the port.
Off
means power is not
being supplied by the port.
Faulty
means the port is unable to power the PD.
Deny
means the port cannot
supply power because the system doesn’t have enough power.
From PS is the logical power reserved from the available power pool.
To PD is the power level leaving the line card to the PD
Device type either IEEE or Cisco phone model number
The class of PD connected to each port
The third line showing the “Total power drawn by module x” displays the amount of power consumed by the
PDs attached to it and does NOT include the power needed to run the module itself.
Don’t assume that a PoE capable line card can support all ports with up to 15.4 watts. Each line card slot in
the chassis is allocated about 1,000 watts regardless of the port density on any specific card. Cisco
introduced the WS-X6196-RJ-21, a 96-port PoE line card. IEEE 802.3af support on this line card requires a
PoE daughter card to manage 960 Watts for all ports. Again, worst-case, if class-3 PDs are used, only 62
ports could supply power. But using class-2 PDs, all 96 ports would give power.
MJK
Copyright ©
2006 Avaya Inc. All Rights Reserved.
18
