Avaya Solution & Interoperability Test Lab
A Sample Configuration using Cisco Catalyst 3750E-24PD to
Provide Power over Ethernet to Avaya IP Telephones - Issue 1.0
Abstract
These Application Notes describe the configuration of the Cisco Catalyst 3750E-24PD to
provide Power over Ethernet (PoE) to Avaya 1600, 4600 and 9600 Series IP Telephones
registered to Avaya Communication Manager.
MTB; Reviewed:
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1.
Introduction
Power over Ethernet (PoE) allows both power and data to be simultaneously carried over
standard Ethernet cables. PoE-enabled Ethernet switches can supply power directly to Ethernet
devices, thereby simplifying installation and removing the need for separate power supplies for
those devices. The IEEE 802.3af defines a standard protocol to be used by Power Sourcing
Equipment (PSE) and Powered Devices (PD). The Catalyst 3750E-24PD is IEEE 802.3af
compliant and can provide inline power to the Avaya 1600, 4600 and 9600 Series IP Telephones
which are IEEE 802.3af compliant powered devices.
Figure 1 shows the configuration used for PoE. All ports on the switch are PoE enabled by
default.
Figure 1: Power over Ethernet Network Configuration
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2.
Equipment and Software Validated
The following equipment and software was used for the Power over Ethernet testing.
Equipment
Avaya S8300B Server with
Avaya G450 Media Gateway
Avaya one-X Deskphone
1603 IP Telephone with PoE Splitter
Avaya one-X Deskphone
1616 IP Telephone
Avaya 4602 IP Telephone
Avaya 4602SW IP Telephone
Avaya 4610SW IP Telephone
Avaya 4620SW IP Telephone with
Avaya EU24 Expansion Module
Avaya 4621SW IP Telephone with
Avaya EU24 Expansion Module
Avaya 4625SW IP Telephone with
Avaya EU24 Expansion Module
Avaya one-X Deskphone
9610 IP Telephone
Avaya one-X Deskphone
9620 IP Telephone
Avaya one-X Deskphone
9630 IP Telephone
Avaya one-X Deskphone
9640 (C) IP Telephone
Avaya one-X Deskphone
9650 IP Telephone
Cisco Catalyst 3750E-24PD Series
24 port Switch
Version
Avaya Communication Manager
R5.1(R015x.01.0.415.1)
27.31.0
Application File: ha1603ua1.0.bin
Boot File: hb1603ua1.0.bin
Application File: ha1616ua1.030.bin
Boot File: hb1616ua1.030.bin
Application File: a20d01b2_3.bin
Boot File: b20d01b2_3.bin
Application File: a20d01b2_3.bin
Boot File: b20d01b2_3.bin
Application File: a10d01b2_9.bin
Boot File: b10d01b2_9.bin
Application File: a20d01b2_9.bin
Boot File: b20d01b2_9.bin
Application File: a20d01b2_9.bin
Boot File: b20d01b2_9.bin
Application File: a25d01a2_9.bin
Boot File: b25d01a2_9.bin
Application File: ha96xxua1.20r21st.bin
Boot File: hb96xxua1.20r21st.bin
Application File: ha96xxua2.00.bin
Boot File: hb96xxua2.00.bin
Application File: ha96xxua2.00.bin
Boot File: hb96xxua2.00.bin
Application File: ha96xxua1.50.bin
Boot File: hb96xxua1.50.bin
Application File: ha96xxua2.00.bin
Boot File: hb96xxua2.00.bin
IOS 12.2(35)SE5
Table 1: Equipment and Software Versions
Note: 96XX series phones tested were non color screen versions excepting where denoted by (C)
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3.
Configure Avaya G450 Media Gateway
This section shows the necessary steps in configuring the Avaya G450 Media Gateway.
Step
Description
1
Configure the Avaya G450 Media Gateway
Connect to the Console port of the V10 module with serial cable provided for gateway.
Start Hyperterminal session interface and log in using appropriate credentials.
2
Create a vlan
G450-001(super)# set vlan 119 name voice
3
Assign an IP address to vlan
G450-001(super)# int vlan 119
G450-001(super-if:Vlan 119)# ip address 10.10.9.91 255.255.255.0
4
Configure Ethernet port
The set port command is used to configure port 10/6. Classify the port as valuable so if
link fails a notification is generated.
G450-001(super)# set port vlan enable10/6
G450-001(super)# set port duplex 10/6 full
G450-001(super)# set port speed10/6 1GB
G450-001(super)# set port vlan 119 10/6
G450-001(super)# set port classification 10/6 valuable
5
Configure port mode
This command configures the port 10/6 to be bound to vlan VOICE which is the
configured on the gateway
G450-001(super)# set port vlan-binding-mode 10/6 bind-to-configured
6.
Create a trunk port
This command sets the port 10/6 to be a trunk port. Use the set trunk command to
configure the VLAN tagging mode of the port. The dot1q parameter specifies IEEE
802.1Q tagging on a Fast Ethernet or Gigabit Ethernet port.
G450-001(super)# set trunk 10/6 dot1q
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4.
Configure Endpoints in Avaya Communication Manager
This section shows the necessary steps in configuring the endpoints in Avaya Communication
Manager.
Step
Description
1.
Start a SSH session and connect to the Avaya S8300 server IP address. Log in using
appropriate credentials.
2.
From the command line connect to SAT (System Access Terminal). Log in using
appropriate credentials.
3.
Add Stations
Extension numbers need to be defined for all the phones listed in Table 1. The command
add station is used to configure a phone extension. Use the SAT help command to
acquire a list of the models available for the release of Avaya Communication Manager
software. The Type parameter is selected for the model type or nearest representative
model listed in the software database. A generic Security Code is allocated to all the
phones under test. The Name for the particular phone to be used at this extension can be
given as a specific name or the extension number of the phone tested. Refer to the
example below.
Type: 4621
Security Code: 1234
Name: 4621SW
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Step
Description
4.
Configure DiffServ /TOS and 802.1p/Q parameters in Avaya Communications Manager
Avaya IP Telephones receive Quality of Service (QoS) tagging information when it
registers with Avaya Communication Manager. The QoS values are configured using the
change ip-network-region 1 command to access and set the DiffServ/TOS and
802.1p/Q parameters using sat interface into Avaya S8300 media server.
In the example below the IP telephones are registered in network region 1. The
Diffserv/Tos parameters are set at 46 for both Audio and Video packets. These values will
appear on the phone as L3 Audio and Signalling values. Similarly for the 802.1P/Q
parameters both are set at 6. These values will appear on the phone as L2 Audio and
Signalling values. Refer to the following section 6.4 for details on accessing this
information on the phone.
5.
Use the Save Translations command to save the settings.
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5.
Configure the Cisco Catalyst 3750E-24PD Switch
This section shows the necessary steps in configuring the Cisco Catalyst 3750E-24PD switch.
Step
Description
1.
Connect to the Cisco Catalyst 3750E-24PD switch using Hyperterminal and log in using
the appropriate credentials
2.
User Access Verification
Password:
3750>ena
Password
3750#
Create vlan(s) on the switch
3.
3750#conf t
3750(config)#vlan 119 voice
3750(config)#vlan 120 data
3750(config-vlan)#exit
3750#exit
Assign an IP address to the vlan
3750#conf t
3750(config)#interface vlan 119
3750(config-if)#ip address 10.10.9.92 255.255.255.0
3750(config-if)#exit
4.
Create a range of trunk ports tagged to the vlan 119 voice for PoE testing
3750#conf t
3750(config)#interface range gigabitEthernet1/0/1 -8
3750(config-if)#switchport trunk allowed vlan 119
3750(config-if)#switchport mode trunk
3750(config-if)#spanning-tree portfast
3750(config-if)#exit
5.
Create a range of access ports tagged to the vlan 119
3750#conf t
3750(config)# interface range gigabitEthernet1/0/9 -23
3750(config-if)#switchport access vlan 119
3750(config-if)#spanning-tree portfast
3750(config-if)#exit
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Step
Description
6.
Configure uplink port, as a trunk port to accept both vlan 119 voice and vlan 120 data
3750(config)# interface gigabitEthernet1/0/24
3750(config-if)#switchport trunk allowed vlan 119,120
3750(config-if)#switchport mode trunk
3750(config-if)#spanning-tree portfast
3750(config-if)#exit
7.
Save the running configuration.
3750#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
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6.
Configure Avaya IP Phones
There is no configuration requirement on the Avaya endpoints to use PoE. Ensure the telephones
have the current firmware release installed before proceeding with testing. User guides and
manuals for Avaya IP Phones are available from the Avaya Support web site. The following
generic settings were applied to all the phones used in this scenario in addition to the specific IP
address.
Call Server: 10.10.9.90
Router: 10.10.9.10
Mask: 255.255.255.0
802.1q: Auto
Vlan Id: 119
Vlan test: 60
7.
Verification Steps
The following are verification steps for the Power over Ethernet
•
•
•
•
•
Connect the IP Telephones to ports on the Cisco Catalyst 3750E-24PD switch. Verify
that the Avaya IP Telephones can be powered up properly.
Verify successful registration of Avaya IP Telephones with Avaya Communication
Manager and completion of a test call.
Use the command show power inline on the Cisco switch to check the power status.
Reset the switch. Verify that all the IP Telephones can be powered up properly.
Connect Avaya EU24 Expansion Module as indicated in Figure 1 and check the Phone
power status
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8.
Cisco 3750E-24PD Switch PoE Test Results
All Power over Ethernet test cases completed successfully.
8.1.1. IEEE 802.3af PoE implementation on the Avaya Powered Devices and
Cisco Catalyst 3750E-24PD
In June 2003, the IEEE approved a standard for Power over Ethernet. The maximum power is
15.4W per PSE port and the maximum power delivered to a powered device, accounting for
cable loss, is 12.95W. Optionally, powered devices may also be classified based on the
maximum power the device will draw. Cisco Catalyst 3750E-24PD and Avaya Powered Devices
support this optional classification. The Cisco Catalyst 3750E-24PD can detect the Avaya
Powered Devices with the correct classification and deliver the appropriate power. The Cisco
Catalyst 3750E-24PD is IEEE 802.3af compliant and Enhanced Power over Ethernet is Cisco's
extension to the standard that delivers up to 20 Watts per port. The Cisco Catalyst 3750E-24PD
provides inline power to the Avaya 1600, Avaya 4600 and Avaya 9600 Series IP Telephones
which are IEEE 802.3af compliant.
Table 2, Table 2.1 and Table 3 below list the IEEE 802.3af class allocated power and measured
power of the selected Avaya IP telephones when connected to the Cisco Catalyst 3750E-24PD
switch. Power to the phones is listed for when phones are in idle mode.
Avaya Powered
Device
1603
1616
4602 IP
4602SW IP
4610SW IP
4620SW IP
4620SW IP & EU24
4621SW IP
4621SW IP & EU24
4625SW IP
4625SW IP & EU24
9610 1x IP
9620 1x IP
9630 1x IP
9640 1x IP
9650 1x IP
802.3af
Class
2
3
2
2
2
2
2
2
2
2
3
2
2
2
2
2
Measured Power
(W) (Idle)
7
15.4
7
7
7
7
7
7
7
7
15.4
7
7
7
7
7
Maximum Power
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
Table 2: 802.3af Class and Measured Power with Cisco Catalyst 3750E-24PD
MTB; Reviewed:
SPOC 5/19/2009
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Table 2.1 below list the IEEE 802.3af class allocated power and measured power of the selected
Avaya IP telephones when connected to the Cisco Catalyst 3750E-24PD and with the phone
selector switch set to H (High)
9620 1x IP
9630 1x IP
9640 1x IP
9650 1x IP
3
3
3
3
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
Table 2.1: 802.3af Class and Measured Power with Cisco Catalyst 3750E-24PD
Table 3 below summarizes the 802.3af Classes.
Class
0
1
2
3
4
PSE Output Max Power (W)
15.4
4.0
7.0
15.4
Treat as Class 0
Table 3: IEEE 802.3af Power Classifications
8.1.2. . Configuring Inline Power on the Cisco Catalyst 3750E-24PD
The Cisco Catalyst 3750E-24PD supports 450Watts of inline power and should support Class 3
powered devices on all 24 ports. The testing associated with these Application Notes did not
cover loading of all ports.
The following describes how the Cisco Catalyst 3750E-24PD interacts with powered devices.
1. PoE-capable ports are configured to auto mode by default. This means that powered device
discovery is enabled. If the budget inline power is exceeded, there is no guarantee which
device will receive power.
2. Power over Ethernet ports may be configured to never provide inline power.
The ports connected to the Avaya IP Telephones must use the default auto mode or static mode
in order to be powered up by the Cisco Catalyst 3750E-24PD.
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Use the command show power inline to check the inline power configuration and status.
3750#show power inline
Module
Available
(Watts)
450
1
Interface
Gi1/0/1
Gi1/0/2
Gi1/0/3
Gi1/0/4
Gi1/0/5
Gi1/0/6
Gi1/0/7
Gi1/0/8
Gi1/0/9
Gi1/0/10
Gi1/0/11
Gi1/0/12
Gi1/0/13
Gi1/0/14
Gi1/0/15
Gi1/0/16
Gi1/0/17
Gi1/0/18
Gi1/0/19
Gi1/0/20
Gi1/0/21
Gi1/0/22
Gi1/0/23
Gi1/0/24
Admin
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto on
auto off
auto off
Oper. Power
7.0
7.0
7.0
15.4
7.0
7.0
7.0
15.4
7.0
7.0
7.0
7.0
7.0
15.4
15.4
7.0
7.0
7.0
4.0
4.0
7.0
7.0
0.0
0.0
Used
(Watts)
181.6
Device
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Ieee PD
n/a
n/a
Remaining
(Watts)
268.4
Class
2
2
2
3
2
2
2
3
2
2
2
2
2
3
3
2
2
2
1
1
2
2
n/a
n/a
Max(Watts)
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
15.4
Switch Ports 10 to 13 are for the Avaya one-X 9620, 9630, 9640 and 9650 series IP models
respectively. These phones have a selectable power setting switch underneath the Phone base
unit enabling them to be set as either a class 2 or a class 3 Powered Device. The switch will
provide adequate power to the Powered Device consistent with the IEEE requirements
previously outlined in Table 3. The phones are set to L (Lo) by default and the ports are set to
auto by default on the switch.
Interface
Gi1/0/10
Gi1/0/11
Gi1/0/12
Gi1/0/13
Admin
auto on
auto on
auto on
auto on
MTB; Reviewed:
SPOC 5/19/2009
Oper. Power
15.4
15.4
15.4
15.4
Device
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Class
3
3
3
3
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©2009 Avaya Inc. All Rights Reserved.
Max(Watts)
15.4
15.4
15.4
15.4
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The switch ports need to be shutdown and restarted to accept the new phone configuration. The
following command is used to shutdown and restart switch ports.
3750#conf t
3750(config)#interface range gigabitEthernet 1/0/10 -13
3750(config-if)#shutdown
3750(config-if)#no shutdown
3750(config-if)#exit
3750(config)#exit
The configuration command power inline <options> can be used to set the power mode of an
interface. The options available are:
auto
Automatically detect and power inline devices
consumption
Configure the inline device consumption
never
Never apply inline power
police
Police the power drawn on the port
static
High priority inline power interface
max
Maximum power allowed on this interface
(4000-15400) Power range in milli-watts
The power mode of a port is set to auto by default. The following command shows how to set
the power of a range of ports at a priority value of 15.4 Watts.
3750#conf t
3750(config)# interface range gigabitEthernet 1/0/10 -13
3750(config-if)#power inline static max 15400
3750(config-if)#exit
3750(config)#exit
The readings for these ports are as shown below.
Interface
Gi1/0/10
Gi1/0/11
Gi1/0/12
Gi1/0/13
Admin
static on
static on
static on
static on
Oper. Power
15.4
15.4
15.4
15.4
Device
Ieee PD
Ieee PD
Ieee PD
Ieee PD
Class
2
2
2
2
Max(Watts)
15.4
15.4
15.4
15.4
There is a difference in class presented by the switch when these two configurations are
employed for these Avaya one-X phone models.
MTB; Reviewed:
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9.
Conclusion
The Cisco Catalyst 3750E-24PD switch is IEEE 802.3af compliant and can be used to provide
inline power to the Avaya IP 1600, 4600 and 9600 series IP Telephones. Power allocation to
devices is automatic by default and ports can be configured to specific power requirements.
10. Additional References
This section references the product documentation relevant to these Application Notes.
1. Administrator Guide for Avaya Communication Manager, Document 03-300509, Issue
4.0, Release 5.0, January 2008, available at: http://support.avaya.com
2. Cisco Catalyst 3750E-24PD Switch Getting Started Guide 78-17568-01, available
at:http://www.cisco.com
3. Cisco Catalyst 3750E-24PD Switch Software Configuration Guide Release 12.2(46) SE
August 2008 available at: http://www.cisco.com
4. Cisco Catalyst 3750E-24PD Hardware Installation Guide July2008, available at:
http://www.cisco.com
5. Cisco Catalyst 3750E-24PD Switch Command Reference OL-9776-01, available at:
http://www.cisco.com
6. Cisco Catalyst 3750E-24PD Switch System Message Guide OL-9776-02, available at:
http://www.cisco.com
7. Cisco Catalyst 3750E-24PD Release Notes Cisco IOS Release 12.2(44) SE January 2009,
available at: http://www.cisco.com
MTB; Reviewed:
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©2009 Avaya Inc. All Rights Reserved.
Avaya and the Avaya Logo are trademarks of Avaya Inc. All trademarks identified by ® and
™ are registered trademarks or trademarks, respectively, of Avaya Inc. All other trademarks
are the property of their respective owners. The information provided in these Application
Notes is subject to change without notice. The configurations, technical data, and
recommendations provided in these Application Notes are believed to be accurate and
dependable, but are presented without express or implied warranty. Users are responsible for
their application of any products specified in these Application Notes.
Please e-mail any questions or comments pertaining to these Application Notes along with the
full title name and filename, located in the lower right corner, directly to the Avaya Solution &
Interoperability Test Lab at [email protected]
MTB; Reviewed:
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