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Operation Manual – PoE
H3C S9500 Series Routing Switches Table of Contents
i
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:
z PoE Overview
z PoE Configuration
z Displaying PoE Configuration
z PoE 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, WLAN APs, and Network cameras) through twisted pairs.
z The S9500 series support LEGACY Power Supply standard. While they can also
supply power to PDs noncompliant with the standard.
z The 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.
z The 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).
z The 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).
z The maximum power that can be supplied by each Ethernet port to its PD is 15.4
W.
z When 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:
z When a remote PD is powered by an S9500 series switch, the PD needs not have
any external power supply.
z If 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
z One or two power supply units (PSUs) of the PSE4500-A power system can
provide 1,200 W of power.
z If 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
z In 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.
z If 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:
z When 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.
z To 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 PoE power for the board to 400 W,
a power of 381 W only can be guaranteed to respond quickly for stable power
supply.
z Currently, 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
W.
1.2 PoE Configuration
The S9500 series can automatically detect any connected device that needs remote
power supply and feeds power to this device.
z Depending on your actual network requirement, you can set the maximum PoE
power totally supplied by the switch through the command line.
z You can set the maximum PoE power supplied by a card through the command
line.
z You 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:
z Before 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.
z The reserved power for a blank slot will be recycled automatically by the system if
you insert a PoE-incapable card into the slot.
z When 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.
z The PoE priority of each port is based on its card. In other words, the switch cannot
compare the priorities of ports on different cards.
z The 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
z Two PoE-capable cards are installed in slots 3 and 5 on an S9500 series routing
switch.
z GigabitEthernet 3/1/1 and GigabitEthernet 3/1/2 are connected with IP phones.
z GigabitEthernet 5/1/1 and GigabitEthernet 5/1/2 are connected with access point
(AP) devices.
z The device connected to GigabitEthernet 3/1/2 needs higher priority.
Operation Manual – PoE
H3C S9500 Series Routing Switches Chapter 1 PoE Configuration
1-6
z Slot 3 is provided with 400 W power and slot 5 is provided with full power.
z The 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
AP
AP
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
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# 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
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Chapter 2 PoE PSU Supervision Configuration
When configuring PoE PSU supervision, go to these sections for information you are
interested in:
z Introduction to PoE PSU Supervision
z PoE PSU Supervision Configuration
z Displaying PoE Supervision Information
z PoE 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:
z Set the alarm thresholds for the AC input voltages of the PoE PSUs.
z Set the alarm thresholds for the DC output voltages of the PoE PSUs.
z Query 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
V.
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
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Note:
z You can set the thresholds to any appropriate values in the range, but make sure
the lower threshold is less than the upper threshold.
z For 220 VAC input, it is recommended to set the upper threshold to 264 V and the
lower threshold to 181 V.
z For 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.
Operation Manual – PoE
H3C S9500 Series Routing Switches Chapter 2 PoE PSU Supervision Configuration
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2.3 Displaying PoE Supervision Information
To do… Use the command… Remarks
Display the basic
information about the PoE
PSUs.
display
supervision-module
information
Available in any view
Display detailed alarm
information about the PoE
PSUs.
display poe-power
alarm
Available in any view
Display the number and
current state of AC power
distribution switches of
the PSUs.
display poe-power
switch state
Available in any view
2.4 PoE PSU Configuration Example
2.4.1 AC Input Alarm Thresholds Configuration Example
I. Network requirements
z Set the overvoltage alarm threshold of AC input for PoE PSUs to 264.0 V.
z Set the undervoltage alarm threshold of AC input for PoE PSUs to 181.0 V.
II. Configuration procedure
# Enter system view.
<H3C> system-view
# Set the overvoltage alarm threshold of AC input for PoE PSUs to 264.0 V.
[H3C] poe-power input-thresh upper 264.0
# Set the undervoltage alarm threshold of AC input for PoE PSUs to 181.0 V.
[H3C] poe-power input-thresh lower 181.0
# Display the information about the AC input for the PoE PSUs.
[H3C] display poe-power ac-input state
2.4.2 DC Output Alarm Thresholds Configuration Example
I. Network requirements
z Set the overvoltage alarm threshold of DC output for the PoE PSUs to 57.0 V.
z Set the undervoltage alarm threshold of DC output for the PoE PSUs to 45.0 V.
II. Configuration procedure
# Enter system view.
Operation Manual – PoE
H3C S9500 Series Routing Switches Chapter 2 PoE PSU Supervision Configuration
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<H3C> system-view
# Set the overvoltage alarm threshold of DC output for the PoE PSUs to 57.0 V.
[H3C] poe-power output-thresh upper 57.0
# Set the undervoltage alarm threshold of DC output for the PoE PSUs to 45.0 V.
[H3C] poe-power output-thresh lower 45.0
# Display the DC output state of the PoE PSUs.
[H3C] display poe-power dc-output state
# Display the DC output voltage/current values of the PoE PSUs.
[H3C] display poe-power dc-output value
2.4.3 PoE PSU Supervision Configuration Example
I. Network requirements
z Insert a PoE-capable card into slot 3 of the S9500 series routing switch.
z Connect GigabitEthernet 3/1/1 through GigabitEthernet 3/1/4 to IP phones.
z Set the AC input and DC output alarm thresholds to appropriate values.
II. Network diagram
GE3/1/1
GE3/1/2
GE3/1/3
GE3/1/4
Figure 2-1 Network diagram for PoE supervision configuration
III. Configuration procedure
# Enter system view.
<H3C> system-view
# Set the overvoltage alarm threshold of AC input for PoE PSUs to 264.0 V.
[H3C] poe-power input-thresh upper 264.0
# Set the undervoltage alarm threshold of AC input for PoE PSUs to 181.0 V.
[H3C] poe-power input-thresh lower 181.0
# Set the overvoltage alarm threshold of DC output for the PoE PSUs to 57.0 V.
[H3C] poe-power output-thresh upper 57.0
Operation Manual – PoE
H3C S9500 Series Routing Switches Chapter 2 PoE PSU Supervision Configuration
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# Set the undervoltage alarm threshold of DC output for the PoE PSUs to 45.0 V.
[H3C] poe-power output-thresh lower 45.0
/