Avaya P460 User Manual
Avaya
Configuration Guide
AVAYA P460
MULTILAYER MODULAR SWITCH
SOFTWARE VERSION 1.0
February 2003
Contents
List of Tables....................................................................................................... v
List of Figures .................................................................................................. vii
Chapter 1 Avaya P460 Product Overview........................................................................ 1
Introduction ........................................................................................................ 1
Avaya P460 Main Components ....................................................................... 2
Supervisor Modules ...............................................................................2
I/O Modules ............................................................................................ 2
PSUs (Power Supply Units) .................................................................. 2
Chapter 2 Establishing Switch Access............................................................................... 3
Introduction ........................................................................................................ 3
Establishing a Console Connection with the P460........................................ 3
Establishing a Telnet Connection with the Switch (Inband) ....................... 4
Inband Interface Connection CLI Commands ................................... 4
Establishing a Telnet Connection with the Switch (Outband) .................... 5
Outband Interface Connection CLI Commands ................................ 6
Redundant Outband Connections ....................................................... 7
Establishing a PPP via Modem Connection with the P460 (Sideband) ..... 8
Overview .................................................................................................. 8
Sideband (PPP) Interface CLI Commands ..........................................8
Setting Up Sideband (PPP) Connection Configuration ....................9
Chapter 3 Avaya P460 Supervisor Module Features .................................................... 11
Introduction ...................................................................................................... 11
M460ML-SPV Supervisor Module Modes: .................................................. 11
Supervisor Synchronization ........................................................................... 12
Configuring the Supervisor Modules for Active/Standby
Operation ............................................................................................... 12
Synchronizing the Supervisor Modules Manually .......................... 12
Configuration File Synchronization ................................................... 13
Chapter 4 Avaya P460 Layer 2 Features ......................................................................... 15
Ethernet ............................................................................................................. 15
Fast Ethernet .............................................................................. 15
Gigabit Ethernet ......................................................................... 15
Configuring Ethernet Parameters ...................................................... 15
Auto-negotiation ....................................................................... 15
Avaya P460 Configuration Guide i
Table of Contents
Flow Control ...............................................................................16
Duplex Mode ..............................................................................16
Speed ...........................................................................................16
MAC Address ............................................................................16
CAM Table ..................................................................................17
Ethernet Configuration CLI Commands ...........................................17
Ethernet Configuration Examples ......................................................19
VLAN Configuration....................................................................................... 20
VLAN Overview ...................................................................................20
VLAN Tagging ......................................................................................21
Multi VLAN Binding ............................................................................22
P460 VLAN Table ..................................................................................23
Ingress VLAN Security ........................................................................23
VLAN CLI Commands ........................................................................23
VLAN Configuration Example ...........................................................25
Spanning Tree Configuration......................................................................... 26
Spanning Tree Overview .....................................................................26
Spanning Tree per Port ........................................................................26
Spanning Tree CLI Commands ...........................................................27
LAG Configuration .......................................................................................... 28
LAG Overview ......................................................................................28
Configuring LAGs ................................................................................28
Logical Port Numbers ..........................................................................29
LAG Redundancy .................................................................................29
LAG CLI Commands ............................................................................30
LAG Configuration Example ..............................................................30
Port Redundancy Configuration.................................................................... 31
Port Redundancy Overview ................................................................31
Secondary Port Activation ...................................................................31
Switchback .............................................................................................31
Switchback Parameters ........................................................................31
Redundancy CLI Commands ..............................................................32
Port Redundancy Configuration Example ........................................33
IP Multicast Filtering Configuration ............................................................. 34
Overview ................................................................................................34
IP Multicast CLI Commands ...............................................................35
Broadcast Storm Control ................................................................................. 36
Broadcast Storm Control Overview ...................................................36
Broadcast Storm Control CLI Commands ........................................37
Broadcast Storm Control Configuration Examples .........................37
Priority Configuration ..................................................................................... 38
Overview ................................................................................................38
Priority Queues .....................................................................................38
Priority Configuration CLI Commands ............................................38
ii Avaya P460 Configuration Guide
Table of Contents
Chapter 5 Avaya P460 Layer 3 Features ......................................................................... 39
Introduction ...................................................................................................... 39
What is Routing? ................................................................................... 39
Routing Configuration .................................................................................... 41
Forwarding ............................................................................................ 41
Multinetting (Multiple Subnetworks per VLAN) ............................ 41
IP Configuration............................................................................................... 42
IP Configuration CLI Commands ...................................................... 42
Basic Router Configuration ................................................................. 43
RIP (Routing Interchange Protocol) Configuration .................................... 46
RIP Overview ........................................................................................ 46
RIP2 ......................................................................................................... 47
RIP CLI Commands ............................................................................. 47
OSPF (Open Shortest Path First) Configuration.......................................... 49
OSPF Overview ..................................................................................... 49
OSPF CLI Commands .......................................................................... 49
Static Routing Configuration ......................................................................... 51
Static Routing Overview ...................................................................... 51
Static Routing Configuration CLI Commands ................................. 51
Route Preferences ................................................................................. 52
Route Redistribution ....................................................................................... 53
Route Redistribution Commands ....................................................... 53
ARP (Address Resolution Protocol) Table Configuration ......................... 54
ARP Overview ...................................................................................... 54
The ARP Table ........................................................................... 55
ARP CLI Commands ............................................................................ 55
BOOTP/DHCP (Dynamic Host Configuration Protocol) Relay
Configuration ................................................................................................... 56
BOOTP/DHCP Overview ................................................................... 56
BOOTP ........................................................................................ 56
DHCP .......................................................................................... 56
DHCP/BOOTP Relay ............................................................... 56
BOOTP/DHCP CLI Commands ........................................................ 57
NetBIOS Re-broadcast Configuration........................................................... 58
NetBIOS Overview ............................................................................... 58
NetBIOS Re-broadcast Configuration CLI Commands .................. 58
VRRP (Virtual Router Redundancy Protocol) Configuration ................... 59
VRRP Overview .................................................................................... 59
VRRP Configuration Example 1 ......................................................... 60
Case#1 ......................................................................................... 60
Case #2 ........................................................................................ 61
VRRP CLI Commands ......................................................................... 61
Policy Configuration ....................................................................................... 63
Policy Configuration Overview .......................................................... 63
Avaya P460 Configuration Guide iii
Table of Contents
Policy Configuration CLI Commands ...............................................64
Policy Configuration Example ............................................................65
Chapter 6 Switch Monitoring Features ........................................................................... 67
SNMP Configuration ....................................................................................... 67
SNMP Configuration Overview .........................................................67
Managers and Agents ...............................................................67
Manager/Agent Communication ...........................................67
SNMP Communities .................................................................68
SNMP Configuration CLI Commands ...............................................68
RMON................................................................................................................ 70
RMON Overview ..................................................................................70
RMON CLI commands ........................................................................70
SMON ................................................................................................................ 72
SMON Overview ...................................................................................72
SMON CLI Commands ........................................................................73
Logs .................................................................................................................... 74
Log Overview ........................................................................................74
Log CLI Commands .............................................................................74
Port Mirroring Configuration......................................................................... 75
Port Mirroring Overview .....................................................................75
Port Mirroring CLI commands ...........................................................75
Port Mirroring Constraints ..................................................................75
Port Classification ............................................................................................ 76
Port Classification Overview ...............................................................76
Port Classification CLI Commands ....................................................76
iv Avaya P460 Configuration Guide
List of Tables
Table 3.1 ACT and OPR LED Summary..................................................11
Table 4.1 Possible LAG Configurations...................................................28
Table 5.2 Differences Between RIP and RIP2..........................................47
Avaya P460 Configuration Guide v
List of Tables
vi Avaya P460 Configuration Guide
List of Figures
Figure 1.1 The Avaya P460 Switch – Front View .......................................1
Figure 2.1 M460ML-SPV Supervisor Module Serial Console Port .......... 3
Figure 2.2 M460ML-SPV Supervisor Module Fast Ethernet Console
Figure 2.3 Redundant Outband Connections.............................................7
Figure 4.1 VLAN Overview ........................................................................ 20
Figure 4.2 VLAN Switching and Bridging................................................21
Figure 4.3 Multiple VLAN Per-port Binding Modes............................... 22
Figure 5.1 Routing ........................................................................................ 40
Figure 5.3 Building an ARP Table .............................................................. 54
Figure 5.4 VRRP Configuration Example ................................................. 60
Figure 5.5 Avaya P460 Policy...................................................................... 64
Port .................................................................................................5
Avaya P460 Configuration Guide vii
List of Figures
viii Avaya P460 Configuration Guide
Chapter 1
Avaya P460 Product Overview
Introduction
The Avaya P460 is a high-performance multilayer modular switch with two
Supervisor module slots, four I/O slots and up to three Power Supply Units. It
features full redundancy from switching fabric to port level.
Figure 1.1 The Avaya P460 Switch – Front View
1
2
Key
1 Supervisor modules
2 I/O modules
3 PSUs
4 Fan module
4
3
Avaya P460 Configuration Guide 1
Chapter 1 Avaya P460 Product Overview
Avaya P460 Main Components
Note: For information on Installation, Troubleshooting and Maintenance of these
components, refer to the “Avaya P460 Installation and Maintenance Guide.”
Supervisor Modules
The P460 Supervisor modules form the core of the P460. Their functions include:
• Chassis-wide controlling
• I/O module initialization
• Switching fabric initialization
• Switching
• Layer 3 functionality, including routing
• SNMP management agent
• PSU & fan monitoring
• Power budgeting and management
• User interface
• Management interface
I/O Modules
The I/O modules provide the connections to your network devices, such as
workstations, printers, servers and other switches.
The I/O modules include:
Name Description
M4648ML-T 48 10/100 Mbps ports
M4648ML-T-2G 48 10/100 Mbps + 2 SFP GBIC ports
M4612ML-G 12 SFP GBIC ports
PSUs (Power Supply Units)
You can install up to three PSUs in a P460 chassis. Each PSU is equipped with a
cooling fan, an AC power entry filter module, an on/off switch and a status LED.
2 Avaya P460 Configuration Guide
Chapter 2
Establishing Switch Access
Introduction
This chapter describes how to access the Avaya P460 CLI from the following
devices:
• A terminal to the serial port on the Supervisor Module
• A workstation running a Telnet session connected via an I/O module (Inband)
• A workstation running a Telnet session connected to the Console Fast Ethernet
port on a Supervisor module (outband)
• A remote terminal/workstation attached via a modem (PPP connection) to the
Supervisor Console Serial port. (Sideband)
Establishing a Console Connection with the P460
Figure 2.1 M460ML-SPV Supervisor Module Serial Console Port
Perform the following steps to connect a terminal to the P460 Serial Console port for
configuration of switch parameters:
1 Use the serial cable supplied to attach the RJ-45 console connector to the
Console port of the active M460ML-SPV module. Connect the DB-9 connector to
the serial (COM) port on your PC/terminal.
L The active Supervisor module is indicated by the ACT and OPR LEDs being lit.
2 Ensure that the serial port settings on the terminal are:
— 9600 baud
—8 bits
—1 stop bit
—no parity.
X If you reset or powered up the switch after connecting and configuring the
terminal, Welcome to P460 appears followed by the Login Name prompt.
L If the login prompt does not appear, press a key on the terminal.
3 Enter the default login: root.
X The Password prompt appears
4 Enter the user level password: root.
Avaya P460 Configuration Guide 3
Chapter 2 Establishing Switch Access
Note: If you connect your terminal to the Standby SPV, you can get access to all the
CLI commands by opening a Session to the Active SPV.
Establishing a Telnet Connection with the Switch (Inband)
Perform the following steps to establish a Telnet connection to the P460 for
configuration:
L You need to assign an inband interface IP address using a direct connection to
the console serial port before you can establish the Telnet session.
1 Connect your station to the I/O module (directly or via the network).
2 Verify that you can communicate with the P460 using Ping to the inband
interface IP of the P460. If there is no response using the Ping command, check
the IP address and default gateway of both the P460 and the station.
L The default subnet mask is 255.255.255.0.
3 Start a Telnet session:
— From the Microsoft Windows
or access the command prompt
— Start the Telnet session by typing: telnet <P460_IP_address>
For example: telnet 149.49.35.214
X The Login Name prompt is displayed
4 Enter the default name root
X The password prompt is displayed
5 Enter the password root in lower case letters.
L You can now configure the P460.
®
taskbar of your PC click Start and then Run
Inband Interface Connection CLI Commands
In order to... Use the following command...
Configure the management
interface
Configure the management VLAN
ID
Enable the inband interface enable interface inband
Disable the inband interface disable interface inband
Display information on the device
network interfaces
4 Avaya P460 Configuration Guide
set interface inband
set inband vlan
show interface
Chapter 2 Establishing Switch Access
In order to... Use the following command...
Send an ICMP echo request packets
to another node on the network.
Note: For more detailed information on the CLI commands, please refer to the
Avaya P460 Reference Guide
ping
Establishing a Telnet Connection with the Switch (Outband)
Figure 2.2 M460ML-SPV Supervisor Module Fast Ethernet Console Port
Perform the following steps to establish a Telnet connection to the P460 for
configuration:
L You need to assign an outband interface IP address using a direct connection to
the console serial port before you can establish the Telnet session.
L You can configure the Fast Ethernet console port parameters if necessary.
L The outband interface should be on a different subnet from the inband interface.
1 Connect your station to the Fast Ethernet console port (directly or via the
network).
2 Verify that you can communicate with the P460 using “ping” to the outband
interface IP of the P460. If there is no response using the Ping command, check
the IP address and default gateway of both the P460 and the station.
3 Start a Telnet session:
— From the Microsoft Windows
or access the command prompt
— Start the Telnet session by typing: telnet <P460_IP_address>
For example: telnet 149.49.35.214
X The Login Name prompt is displayed
4 Enter the default name root
X The password prompt is displayed
5 Enter the password root in lower case letters.
L You can now configure the P460.
L You can connect the Out-band interface to either of the Supervisor modules.
®
taskbar of your PC click Start and then Run
Avaya P460 Configuration Guide 5
Chapter 2 Establishing Switch Access
Outband Interface Connection CLI Commands
In order to... Use the following command...
Configure the management
set interface outband
interface
Enable the outband interface enable interface outband
Disable the outband interface disable interface outband
Enable or disable the link
set outband negotiation
negotiation protocol on the Fast
Ethernet console port
Set the speed of Fast Ethernet
set outband speed
Console port
Set the duplex mode of the Ethernet
set outband duplex
Console port
Display information on the device
show interface
network interfaces
Display outband interface
show outband
parameters
Send an ICMP echo request packets
ping
to another node on the network.
6 Avaya P460 Configuration Guide
Redundant Outband Connections
You can create a redundant outband management connection by connecting both
Supervisor modules to the NMS via the Fast Ethernet interface by a switch (see
Figure 2.3).
Figure 2.3 Redundant Outband Connections
Switch
Workstation
Chapter 2 Establishing Switch Access
In this configuration, the Active SPV will respond to its Out-band port and the port
of the other SPV will be ignored.
Avaya P460 Configuration Guide 7
Chapter 2 Establishing Switch Access
Establishing a PPP via Modem Connection with the P460 (Sideband)
Overview
The Point-to-Point Protocol (PPP) provides a Layer 2 method for transporting multiprotocol datagrams over point-to-point links. Here only IP datagrams will be
exchanged, over a RS232 serial connection, between the P460 supervisor module
and a remote peer (such as Ethernet) via a modem and the telephone lines. This
provides remote access the sideband management interface of a P460 via a modem.
Sideband (PPP) Interface CLI Commands
In order to... Use the following command...
Configure the device ppp interface
and control a PPP session
Configure the shared secret used in
PPP sessions with CHAP
authentication
Set the time after which the system
automatically disconnects an idle
PPP incoming session
Define the PPP authentication
method
Set the baud rate used in PPP
sessions
Display the PPP parameters of the
active PPP session.
Display the authentication method
used for PPP sessions
Display the time after which the
system automatically disconnects
an idle PPP incoming session
set interface ppp
set ppp chap-secret
set ppp incoming timeout
set ppp authentication incoming
set ppp baud-rate
show ppp session
show ppp authentication
show ppp incoming timeout
Display the baud rate used in PPP
sessions
Display the ppp configuration show ppp configuration
8 Avaya P460 Configuration Guide
show ppp baud-rate
Setting Up Sideband (PPP) Connection Configuration
L You need to configure an IP address and netmask for the sideband interface
before you can establish a ppp link.
1 Connect a terminal to the Serial console port.
2 When you are prompted for a Login Name, enter the default name root.
3 When you are prompted for a password, enter the password root. You are
now in Supervisor Level.
4 At the prompt, type:
set interface ppp <ip_addr><net-mask>
with an IP address and netmask to be used by the Avaya P460 Supervisor
module to connect via its PPP interface.
L The PPP interface you configure with the set interface ppp command must be
on a different subnet from the inband and outband interfaces.
5 Set the baud rate, ppp authentication, and ppp time out required to match your
modem. These commands are described in the “Command Line Interface”
chapter.
6 At the prompt, type:
set interface ppp enable
X The following is displayed:
Entering the Modem mode within 60 seconds...
Please check that the proprietary modem cable is plugged
into the console port
7 Use the DB-25 to RJ-45 connector to plug the console cable to the modem’s DB-
25 connector. Plug the other end of the cable RJ-45 connector to an
Avaya P460 Supervisor module RJ-45 port.
8 The Avaya P460 Supervisor module enters modem mode.
9 You can now dial into the switch from a remote station, and open a Telnet, ping
or SNMP management session to the PPP interface IP address.
LIf you have two Supervisor modules installed, you can make a serial connection
to one SPV and configure the PPP parameters through one session and deploy
the PPP connection on the second Supervisor module.
Chapter 2 Establishing Switch Access
Avaya P460 Configuration Guide 9
Chapter 2 Establishing Switch Access
10 Avaya P460 Configuration Guide
Chapter 3
Avaya P460 Supervisor Module Features
Introduction
The Avaya P460 Supervisor module provides the following functionality:
• Chassis-wide control
• I/O module initialization
• Fabric initialization
• Switching that also uses also the fabric of the second SPV
• Layer 3 functionality including routing
• SNMP Management agent
• PSU & Fans monitoring
• Power Budgeting & Management
• User interface
• Management interface
At least one SPV is essential for the switch operation. When two SPVs are installed,
one serves as the active, while the other one is a stand-by.
The switching fabric of a standby Supervisor module actively participates in packet
switching/routing even when its CPU is inactive.
M460ML-SPV Supervisor Module Modes:
• Active – The Supervisor Module is operating
• Standby – This Supervisor Module is fully synchronized with the Active one and
can replace it in the case of failure.
• Halted – This Supervisor Module is not synchronized with the Active one and
cannot act as a standby module.
You can verify the Supervisor Module mode by:
• The ACT and OPR LED status (refer to Table 3.1),
• The show SPV CLI using the command, or
• The P460 Manager
Table 3.1 ACT and OPR LED Summary
ACT LED is... OPR LED is... M460ML-SPV Module mode
ON ON Active
Avaya P460 Configuration Guide 11
Chapter 3 Avaya P460 Supervisor Module Features
Table 3.1 ACT and OPR LED Summary
ACT LED is... OPR LED is... M460ML-SPV Module mode
ON Blinking Active
OFF ON Standby
OFF Blinking Halted or booting
Supervisor Synchronization
Configuring the Supervisor Modules for Active/Standby Operation
In order to operate in an Active-Standby configuration, the two SPVs must be
synchronized.
• If the SPVs are not synchronized, one is Active and the other Halted.
In this case you will need to synchronize them manually. See “Synchronizing
the Supervisor Modules Manually“ on page 12.
• Only in Active-Standby configuration do both SPV fabrics participate in
switching/routing
• An SPV which was Active stays Active after a chassis reset
One of the SPVs can operate as Standby automatically only if both of the following
conditions are fulfilled:
• The current chassis is the last one in which you inserted this SPV
• The current running SW images are the same version
No fan module present
Synchronizing the Supervisor Modules Manually
If the SPVs are not synchronized, you need to synchronize them manually using the
Avaya P460 CLI.
Note: Synchronization can be required for a complete synchronization also if the
SPVs are in an Active-Standby configuration. For example, when the SPVs boot
with the same SW but from different banks
1 Access the CLI. See Chapter 2, “Establishing Switch Access“
2 Enter the sync spv command from the Active Supervisor Module.
L This command transfers the following information from the Active Supervisor
module to the other Supervisor module.
— Firmware images
12 Avaya P460 Configuration Guide
Chapter 3 Avaya P460 Supervisor Module Features
— Embedded Web image
— Preferred boot bank
— Chassis synchronization
L The transfer process can take up to 90 seconds.
L The following screen capture shows the process:
P460-1(super)# sync spv
This command may overwrite the neighbor SPV software and
reset both SPVs
*** Confirmation *** - do you want to continue (Y/N)? y
Copying Bank A to the neighbor SPV ...
Copying Bank A to the neighbor SPV done
Copying Bank B to the neighbor SPV ...
Copying Bank B to the neighbor SPV done
Copying Embedded Web image to the neighbor SPV ...
Copying Embedded Web image to the neighbor SPV done
Setting boot bank of the neighbor SPV ...
Setting boot bank of the neighbor SPV done
Setting chassis sync on for the neighbor SPV...
Setting chassis sync on for the neighbor SPV done
SPVs are resetting.
Please wait till the process is finished. The SPVs will be
synchronized after the reset is completed
Note: After the transfer is finished, the Supervisor Modules are reset automatically.
— After the reset the configuration files of the Active Supervisor Module will
be copied to the Standby Supervisor Module.
L This process can take up to two minutes.
Configuration File Synchronization
Three configuration files are stored in the Supervisor module flash memory:
• Layer 2 configuration (L2-config)
• Layer 3 running configuration (running-config)
• Layer 3 startup configuration (startup-config)
If SPVs are present, the configuration is automatically synchronized between the
Active and Standby Supervisor modules.
• Initial configuration synchronization takes place after the boot: this process can
take up to thirty seconds.
Avaya P460 Configuration Guide 13
Chapter 3 Avaya P460 Supervisor Module Features
• Layer 2 configuration changes are saved in both Supervisor modules when you
press Enter.
L The Supervisor module Ethernet outband interface configuration is not
synchronized between the modules.
• Layer 3 startup configuration is saved in the Standby SPV when you execute the
copy running-config startup-config CLI command. This
configuration is also saved in the Active SPV
L The Layer 3 running configuration is not saved in the Standby SPV
14 Avaya P460 Configuration Guide
Chapter 4
Avaya P460 Layer 2 Features
Ethernet
Ethernet is one of the most widely implemented LAN standards.
It uses the Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
access method to handle simultaneous demands. CSMA/CD is a multi-user
network allocation procedure in which every station can receive the transmissions
of any other station. Each station waits for the network to be idle before transmitting
and each station can detect collisions by other stations.
The first version of Ethernet supported data transfer rates of 10 Mbps, and is
therefore known as 10BASE-T.
Fast Ethernet€
Fast Ethernet is a newer version of Ethernet, supporting data transfer rates of 100
Mbps. Fast Ethernet is similar enough to Ethernet to support the use of most current
Ethernet applications and network management tools. Fast Ethernet is also known
as 100BASE-T (over copper) or 100BASE-FX (over fiber).
Fast Ethernet is standardized as IEEE 802.3u.
Gigabit Ethernet€
Gigabit Ethernet supports data rates of 1 Gbps. It is also known as 1000BASE-T
(over copper) or 1000BASE-FX (over fiber).
Gigabit Ethernet is standardized as IEEE 802.3z.
Configuring Ethernet Parameters
Auto-negotiation€
Auto-Negotiation is a protocol that runs between two stations, two switches or a
station and a switch. When enabled, Auto-Negotiation negotiates port speed and
duplex mode by detecting the highest common denominator port connection for the
endstations. For example, if one workstation supports both 10 Mbps and 100 Mbps
speed ports, while the other workstation only supports 10 Mbps, then AutoNegotiation sets the port speed to 10 Mbps.
For Gigabit ports, Auto-Negotiation determines the Flow Control configuration of
the port.
Avaya P460 Configuration Guide 15
Chapter 4 Avaya P460 Layer 2 Features
The Avaya P460 supports auto-negotiation enabling/disabling on a per-port basis.
Flow Control€
Flow Control ensures that the receiving device can handle all the incoming data.
Flow control does this by adjusting the data flow from one device to another. This is
particularly important where the sending device can send data much faster than the
receiving device can receive the data.
There are many flow control mechanisms. One of the most common flow control
protocols for asynchronous communication is called xon-xoff. In this case, the
receiving device sends a an xoff message to the sending device when its buffer is
full. The sending device then stops sending data. When the receiving device is ready
to receive more data, it sends an xon signal.
Flow control can be implemented in hardware or software, or a combination of
both. The P460 uses hardware flow control.
Duplex Mode€
Devices that support full-duplex can transmit and receive data simultaneously.
Half-duplex transmission where each device can only communicate in turn.
Full-duplex provides higher throughput than half-duplex.
The Avaya P460 supports both full duplex and half duplex.
Speed€
The IEEE defines three standard speeds for Ethernet: 10, 100 and 1000 Mbps, also
known as Ethernet, Fast Ethernet and Gigabit Ethernet respectively.
The Avaya P460 supports the following port speeds:
• 10/100 Mbps
• 1000 Mbps
MAC Address€
The MAC address is a unique 48-bit value associated with any network adapter.
MAC addresses are also known as hardware addresses or physical addresses. They
uniquely identify an adapter on a LAN.
MAC addresses are 12-digit hexadecimal numbers (48 bits in length). By
convention, MAC addresses are usually written in one of the following two formats:
• MM:MM:MM:SS:SS:SS
• MM-MM-MM-SS-SS-SS
The first half of a MAC address contains the ID number of the device manufacturer.
An Internet standards body regulates these IDs. The second half of a MAC address
represents the serial number assigned to the device by the manufacturer.
16 Avaya P460 Configuration Guide
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