H3C S9500 Series Manuale utente

Operation Manual – PoE

H3C S9500 Series Routing Switches Table of Contents

Table of Contents

Chapter 1 PoE Configuration.......................................................................................................1-1

1.1 PoE Overview....................................................................................................................1-1

1.1.1 PoE on the Switch...................................................................................................1-1

1.1.2 External PSE4500-A Power System.......................................................................1-2

1.1.3 PoE-Capable Card..................................................................................................1-2

1.2 PoE Configuration..............................................................................................................1-3

1.2.1 PoE Configuration...................................................................................................1-3

1.3 Displaying PoE Configuration............................................................................................1-5

1.4 PoE Configuration Example...............................................................................................1-5

Chapter 2 PoE PSU Supervision Configuration......................................................................... 2-1

2.1 Introduction to PoE PSU Supervision................................................................................2-1

2.2 PoE PSU Supervision Configuration .................................................................................2-1

2.2.1 AC Input Alarm Thresholds Configuration .............................................................. 2-1

2.2.2 Configuring DC Output Alarm Thresholds ..............................................................2-2

2.3 Displaying PoE Supervision Information ...........................................................................2-3

2.4 PoE PSU Configuration Example......................................................................................2-3

2.4.1 AC Input Alarm Thresholds Configuration Example ............................................... 2-3

2.4.2 DC Output Alarm Thresholds Configuration Example ............................................ 2-3

2.4.3 PoE PSU Supervision Configuration Example........................................................2-4

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-1

Chapter 1 PoE Configuration

When configuring PoE, go to these sections for information you are interested in:

zPoE Overview

zPoE Configuration

zDisplaying PoE Configuration

zPoE Configuration Example

1.1 PoE Overview

1.1.1 PoE on the Switch

H3C S9500 Series Routing Switches (hereinafter referred to as S9500 series) support

power-over-Ethernet (PoE). Equipped with external power supply and PoE-capable

cards, S9500 series can provide 48 VDC power for remote powered devices (PDs,

such as IP phones, WLANAPs, and Network cameras) through twisted pairs.

zThe S9500 series support LEGACY Power Supply standard. While they can also

supply power to PDs noncompliant with the standard.

zThe power supply of the S9500 series is administered by the SRP card; each PoE

card on the switch can be viewed as a power sourcing equipment (PSE), which

administers the power supplying of all the ports on it independently.

zThe S9500 series can transmit data and supply power in the mean time through

the signal lines (1, 3, 2, and 6) of the category-3/5 twisted pairs. Using converters,

they can also supply power to the PDs that can be powered only through spare

lines (4, 5, 7, and 8).

zThe S9500 series supply power through the Ethernet electrical ports on the

service cards. Each service card can supply power to up to 48 remote devices at

the maximum distance of 100 m (328 feet).

zThe maximum power that can be supplied by each Ethernet port to its PD is 15.4

zWhen supplying power to remote devices, the maximum total power that can be

provided by the S9500 series is 4500 W (220 V)/2250 W (110V). The switch

determines whether or not to supply power to the next remote PD it discovered

depending on the total power it currently supply.

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-2

Note:

zWhen a remote PD is powered by an S9500 series switch, the PD needs not have

any external power supply.

zIf the remote PD has an external power supply, the S9500 series switch and the

external power supply will be redundant with each other for the PD.

1.1.2 External PSE4500-A Power System

If PSE4500-A power system is taken as the external power supply of the switch, the

power distribution is as follows:

1) Input voltage: 110 VAC

zOne or two power supply units (PSUs) of the PSE4500-A power system can

provide 1,200 W of power.

zIf the PSE4500-A power modules work in 2+1 redundancy backup mode, an

output power of 2,500 W is provided and one power module works for the purpose

of backup.

2) Input voltage: 220 VAC

zIn the PSE4500-A power system, one power module can provide a power of up to

2,500 W and two modules can provide a power of up to 4,500 W. When working in

the 1+1 backup mode, the system provides a power of up to 2,500 W.

zIf the PSE4500-A power modules are in 2+1 redundancy, an output power of up to

4500 W is provided and one power module works for the purpose of backup.

1.1.3 PoE-Capable Card

GV48D card of the S9500 series supports PoE.

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-3

Caution:

zWhen the actual power exceeds the set value, the port with a lower priority stops

supplying power so that the port with a higher priority can supply power.

zTo ensure power supply to the "last PD" and provide redundant power to prevent a

transient rise of board power consumption, by default, a buffer of 19 W is reserved

on the chip. For example, if you set the maximum PoEpower for the board to 400 W,

a power of 381 W only can be guaranteed to respond quickly for stable power

supply.

zCurrently, you can set a PoE power ranging from 37 W to 740 W on the PoE boards

of the S9500 series routing switches. By default, the power for a PoE board is 740

1.2 PoE Configuration

The S9500 series can automatically detect any connected device that needs remote

power supply and feeds power to this device.

zDepending on your actual network requirement, you can set the maximum PoE

power totally supplied by the switch through the command line.

zYou can set the maximum PoE power supplied by a card through the command

line.

zYou can also control the PoE on each PoE port independently through the

command line. The control includes: enabling/disabling the PoE feature, and

setting the maximum PoE power, the PoE mode and the PoE priority on the port.

1.2.1 PoE Configuration

Follow these steps to configure PoE on the S9500 series switches:

To do… Use the command… Remarks

Enter system view system-view —

Configure the maximum

power of switch poe power max-value

max-value Optional

4,500 W by default

Enable PoE on a board poe enable slot slot-num Required

Disabled by default

Enable the board to detect

the compatibility of the PD

connected to it

poe legacy enable slot

slot-num

Optional

By default, the board does

not detect the

compatibility of the PD

connected to it.

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-4

To do… Use the command… Remarks

Configure the PoE power

management for a board

on the switch

poe power-management

{ auto | manual } slot

slot-num

Optional

By default, you manually

manage PoE power

supply for the board on

the switch.

Enter Ethernet port view interface interface-type

interface-number —

Enable PoE on the port poe enable Optional

Disabled by default

Set the maximum PoE

power supplied by the port poe max-power

max-power

Optional

You can set the maximum

PoE power supplied by a

port depending on the

power of the actual PD.

By default, the max-power

is 15,400 mW.

Set the PoE mode on the

port poe mode { signal |

spare| auto }

S9500 series supports

only signal line PoE

mode. By default, the PoE

mode on a port is signal.

Set the PoE priority on the

port poe priority { critical |

high |low }

Optional

You can set the PoE

priority on a port

depending on the

practical situation. By

default, the PoE priority

on a port is low.

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-5

Note:

zBefore setting the maximum power supplied by a card, make sure the remaining

power of the switch is no less than the full power of the card, and the power you can

set for a card ranges from 37 W to 740 W.

zThe reserved power for a blank slot will be recycled automatically by the system if

you insert a PoE-incapable card into the slot.

zWhen a card is almost fully loaded and a new PD is added, the switch will respond to

the PD according to the PoE priority set on the port.

zThe PoE priority of each port is based on its card. In other words, the switch cannot

compare the priorities of ports on different cards.

zThe sampling cycle of the power, current and voltage of ports is 1 second; the

sampling cycle of the peak power and average power of both cards and ports is 5

minutes

1.3 Displaying PoE Configuration

To do… Use the command… Remarks

Display the PoE state(s)

of a specific or all ports

display poe interface

[interface-type

interface-num ]Available in any view.

Display the PoE power

information of a specific or

all ports of the switch

display poe interface

power [ interface-type

interface-num ] Available in any view.

Display the PoE state and

PoE power information of

each card display poe pse Available in any view

Display the information

about a card supplying

PoE power display poe slot slotnum Available in any view

1.4 PoE Configuration Example

I. Network requirements

zTwo PoE-capable cards are installed in slots 3 and 5 on an S9500 series routing

switch.

zGigabitEthernet 3/1/1 and GigabitEthernet 3/1/2 are connected with IP phones.

zGigabitEthernet 5/1/1 and GigabitEthernet 5/1/2 are connected with access point

(AP) devices.

zThe device connected to GigabitEthernet 3/1/2 needs higher priority.

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-6

zSlot 3 is provided with 400 W power and slot 5 is provided with full power.

zThe input power of the AP device connected to GigabitEthernet 5/1/2 cannot be

greater than 9,000 mW.

II. Network diagram

GE3/1/1

GE3/1/2

GE5/1/1

GE5/1/2

Figure 1-1 PoE power supply

III. Configuration procedure

# Set the maximum power to 400 W on the card in slot 3. By default, the power of each

card is full, so the power on the card in slot 5 need not be configured.

<H3C> system-view

[H3C] poe max-power 400 slot 3

# Enable PoE on the ports GigabitEthernet 3/1/1 and GigabitEthernet 3/1/2.

[H3C] interface GigabitEthernet3/1/1

[H3C-GigabitEthernet3/1/1] poe enable

[H3C-GigabitEthernet3/1/1] quit

[H3C] interface GigabitEthernet3/1/2

[H3C-GigabitEthernet3/1/2] poe enable

[H3C-GigabitEthernet3/1/2] quit

# Enable PoE on the ports GigabitEthernet 5/1/1 and GigabitEthernet 5/1/2.

[H3C] interface GigabitEthernet5/1/1

[H3C-GigabitEthernet5/1/1] poe enable

[H3C-GigabitEthernet5/1/1] quit

[H3C] interface GigabitEthernet5/1/2

[H3C-GigabitEthernet5/1/2] poe enable

[H3C-GigabitEthernet5/1/2] quit

# Set the PoE priority of the port GigabitEthernet 3/1/2 to critical.

[H3C] interface GigabitEthernet3/1/2

[H3C-GigabitEthernet3/1/2] poe priority critical

[H3C-GigabitEthernet3/1/2] quit

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 1 PoE Configuration

1-7

# Set the maximum PoE power on the GigabitEthernet 5/1/2 port to 9,000 mW.

[H3C] interface GigabitEthernet5/1/2

[H3C-GigabitEthernet5/1/2] poe max-power 9000

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 2 PoE PSU Supervision Configuration

2-1

Chapter 2 PoE PSU Supervision Configuration

When configuring PoE PSU supervision, go to these sections for information you are

interested in:

zIntroduction to PoE PSU Supervision

zPoE PSU Supervision Configuration

zDisplaying PoE Supervision Information

zPoE PSU Configuration Example

2.1 Introduction to PoE PSU Supervision

The PoE-capable S9500 series can monitor the external PoE PSUs through the power

supervision module on the PoE external power system.

The PoE PSU supervision module enables you to:

zSet the alarm thresholds for the AC input voltages of the PoE PSUs.

zSet the alarm thresholds for the DC output voltages of the PoE PSUs.

zQuery PSU information such as voltage and power.

2.2 PoE PSU Supervision Configuration

2.2.1 AC Input Alarm Thresholds Configuration

You can set the AC input alarm thresholds for the PoE PSUs to enable the S9500

series to monitor the AC input voltages of the PSUs in real time through the PoE

supervision module.

Follow these steps to configure AC input alarm thresholds:

To do… Use the command… Remarks

Enter system view system-view —

Set the overvoltage alarm

threshold of AC input

(upper threshold) for the

PoE PSUs

poe-power input-thresh

upper string

Required

The max voltage is 264.0

Set the undervoltage

alarm threshold of AC

input (lower threshold) for

the PoE PSUs

poe-power input-thresh

lower string Required

The min voltage is 90.0 V.

Display the AC input state

of each PoE PSU display poe-power

ac-input state Optional

Available in any view

Operation Manual – PoE

H3C S9500 Series Routing Switches Chapter 2 PoE PSU Supervision Configuration

2-2

Note:

zYou can set the thresholds to any appropriate values in the range, but make sure

the lower threshold is less than the upper threshold.

zFor 220 VAC input, it is recommended to set the upper threshold to 264 V and the

lower threshold to 181 V.

zFor 110 VAC input, it is recommended to set the upper threshold to 132 V and the

lower threshold to 90 V.

2.2.2 Configuring DC Output Alarm Thresholds

You can set the DC output alarm thresholds for the PoE PSUs to enable the S9500

series to monitor the DC output voltages of the PSUs in real time through the PoE

supervision module.

Follow these steps to configure DC output alarm thresholds:

To do… Use the command… Remarks

Enter system view system-view —

Set the overvoltage alarm

threshold of DC output

(upper threshold) for the

PoE PSUs

poe-power

output-thresh upper

string

Required

The range is 55.0 V to

57.0 V.

Set the undervoltage

alarm threshold of DC

output (lower threshold)

for the PoE PSUs

poe-power

output-thresh lower

string

Required

The range is 45.0 V to

47.0 V.

Display the DC output

state of the PoE PSUs. display poe-power

dc-output state Optional

Available in any view

Display the DC output

voltage/current value of

the PoE PSUs

display poe-power

dc-output value Optional

Available in any view

Note:

For both 220 VAC and 110 VAC input, it is recommended to set the upper threshold to

57.0 V and the lower threshold to 45.0 V.

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