L2 POESTATUS

Qualifiers:

None.

Purpose:

Displays Power over Ethernet (PoE) status information for the CXi and CXi II controller.

Details:

Current Total POE Power Consumption: The power currently being sourced by the 16 PoE ports.

Maximum POE Power Allowed: The total power available from the 16 PoE ports (120 Watts). When this limit is exceeded, power will be turned off to the ports, starting with port 16 to and ending with port 1, until less than 120 Watts is being consumed.

RX timeout errors: The total number of messages that were received and then rejected because of timeout conditions (for example, the messages were incomplete).

RX read errors: The total number of messages that were received and then rejected because of read error conditions.

RX other errors: The total number of messages that were received and then rejected because of other error conditions.

TX write errors: The total number of messages that were not transmitted because of write error conditions.

Checksum errors: The total number of messages that were received and then rejected because of checksum error conditions.

Protocol errors: The total number of messages that were received and then rejected because of protocol error conditions.

The following fields provide information about the 16 PoE ports:

pt

The port numbers from 1 to 16. Port 17 does not supply PoE.

cfg

The port PoE configuration, either enabled (yes) or disabled (no).

ena

The port enabled status. Displays ON if the port is configured for PoE and there is enough power available in the power budget (120 Watts, total). Otherwise, displays OFF. When a low-priority port loses power, this field displays OFF.

mode

The power source mode for the port. Can be used for debugging.

RESET

The port has been reset (usually because it has been disabled).

DISC_R

The PoE subsystem is discovering the port's resistative signature. The result is placed in the Oms field. If the resistative signature for a  powered device is discovered, the port switches to CLASSI mode. Otherwise, it remains in DISC_R mode.

DISC_C

The PoE subsystem is discovering the port's capacitive signature.

CLASSI

If the resistative signature for a powered device is discovered, the PoE subsystem will then attempt to classify the power demands of the device. The result is placed in the CI field.

RAMP_U

After the port has been classified (CLASSI), the port PoE subsystem ramps up power to the device.

I-SAMP / V-SAMP

While the PoE subsystem is providing power to a device, it periodically samples the current (I) and voltage (V) consumption.

RAMP_D

A device has been unplugged and the port is powering down. After power down, the port switches DISC_R mode.

CI

The discovered Class type of the connected device. Each Class type has an allowable power consumption range (see below). The PoE module allocates the maximum amount for every range; for example, it allocates 6.49 Watts to all Class 2 devices. Note: Any device that does not support classification is assigned to Class 0 and allocated 7.5 Watts by the PoE subsystem.

Class

Power Consumption Range

0

 0.44 to 12.95 Watts

1

0.44 to 3.84 Watts

2

3.84 to 6.49 Watts

3

6.49 to 12.95 Watts

Ohms

The discovered resistance of the connected device, in Ohms.

mA

The discovered current of the connected device, in milliamps.

Volts

The voltage on the port.

Watts

The power being consumed by the connected device, in Watts. If this field displays 0, then the device is not currently consuming power. A port may be enabled for PoE yet not provide power to the connected device.

Bdgt

The power budgeted for the port, in Watts.

ps

Port paused bit. Displays 1 if the port is paused; otherwise, displays 0. Used for debugging purposes only.

dny

Port power denied count.

OL

Port power overload fault count.

sht

Port short circuit fault count.

flt

Fault condition. Displays a message only if the port is out of service. Otherwise, displays NONE.

NONE

No fault, port in service

UV_OV

Under voltage / over voltage failure

UV_OV_SPIKE

UV / OV failure, plus a spike

PEAK_OC

Peak overcurrent

OVERLOAD

Overloaded port

DISCOVERY_R_FAIL

Classification failed

CLASS_VIOLATION

Power class type violation

DISCONNECT

Port has been disconnected

DISCO_R_A2D_FAIL

Analog to digital (A2D) failure

CLASSIFY_A2D_FAIL

Classify A2D failure

DEVICE_FAULT_A2D_FAIL

A2D failure

SAMPLE_DISC_A2D_FAIL

Current and voltage sample A2D failure

Example:

Entry: L2 PoEStatus

System Response:

Current Total POE Power Consumption: 15.7
Maximum POE Power Allowed: 120.0
RX timeout errors: 29
RX read errors:  0
RX other errors: 0
TX write errors: 0
Checksum errors: 0
Protocol errors: 0

pt

cfg

ena

mode

CI

Ohms

mA

Volts

Watts

Bdgt

ps

dny

OL

sht

flt

--

---

---

------

--

------

---

----

----

---

--

---

--

--

----

1

YES

ON

DISC_R

0

131070

0.0

2.31

0.0

0.0

0

0

0

0

none

2

YES

ON

V-SAMP

0

0

0.0

0.11

0.0

0.0

0

0

0

0

none

3

YES

ON

V-SAMP

0

0

0.0

0.39

0.0

0.0

0

0

0

0

none

4

YES

ON

DISC_R

0

131070

0.0

2.46

0.0

0.0

0

0

0

0

none

5

YES

ON

DISC_R

0

131070

0.0

2.34

0.0

0.0

0

0

0

0

none

6

YES

ON

I-SAMP

0

25274

62.2

47.90

2.9

7.5

0

0

0

0

none

7

YES

ON

I-SAMP

0

25142

65.6

47.94

3.1

7.5

0

0

0

0

none

8

YES

ON

I-SAMP

0

24874

37.4

47.91

1.7

7.5

0

0

0

0

none

9

YES

ON

DISC_R

0

131070

0.0

2.42

0.0

0.0

0

0

0

0

none

10

YES

ON

DISC_R

0

131070

0.0

2.33

0.0

0.0

0

0

0

0

none

11

YES

ON

DISC_R

0

131070

0.0

2.33

0.0

0.0

0

0

0

0

none

12

YES

ON

I-SAMP

0

25492

17.4

48.2

0.8

7.5

0

0

0

0

none

13

YES

ON

I-SAMP

3

24934

80.5

47.86

3.8

13.0

0

0

0

0

none

14

YES

ON

DISC_R

0

131070

0.0

2.27

0.0

0.0

0

0

0

0

none

15

YES

ON

DISC-R

0

131070

0.0

2.44

0.0

0.0

0

0

0

0

none

16

YES

ON

I-SAMP

0

25538

72.3

47.90

3.4

7.5

0

0

0

0

none

 

 

 

 

 

 

 

 

----

---

 

 

 

 

 

TOTAL:

 

 

 

 

 

 

15.7

50.5