MAC Address, Mmmmmmssssss MM-MM-MM-SS-SS-SS | Avaya P332G-ML

Chapter 11 Avaya P330 Layer 2 Features

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. These IDs are regulated by an Internet standards body. The second half of a MAC address represents the serial number assigned to the device by the manufacturer.

CAM Table

The CAM Table contains a mapping of learned MAC addresses to port and VLANs. The switch checks forwarding requests against the addresses contained in the CAM Table:

•If the MAC address appears in the CAM Table, the packet is forwarded to the appropriate port.

•If the MAC address does not appear in the CAM Table, or the MAC Address mapping has changed, the frame is duplicated and copied to all the ports. Once a reply is received, the CAM table is updated with the new address/VLAN port mapping.

76	Avaya P332G-ML User’s Guide

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Avaya P332G-ML manual MAC Address, Mmmmmmssssss MM-MM-MM-SS-SS-SS, CAM Table

Contents

Avaya P332G-ML Avaya.com Contents Section Installation Radius Section Configuration LAG Rmon Dhcp BootpRIP2 Section Troubleshooting and Maintaining Table of Contents Viii Avaya P332G-ML User’s Guide Before you Install the P332G-ML Safety Information FCC NoticeConventions Used in the Documentation CLI Conventions Warranty Avaya Support Avaya P332G-ML User’s Guide Overview Page Avaya P332G-ML Overview IntroductionAbout the P332G-ML Avaya P332G-ML Highlights Layer 3 Features P330-ML Command Line Interface CLINetwork Management and Monitoring Device Manager Embedded Web Port Mirroring Fans, Power Supply, and BUPS-ML MonitoringAvaya Integrated Manager Avaya P332G-ML Overview Avaya P332G-ML User’s Guide Ietf Layer Standards and CompatibilityAvaya P330 Standards Supported Ietf Network Monitoring Specifications P332G-ML SwitchPower Requirements Physical Safety Safety AC VersionSafety DC Version EMC Emissions Stacking Sub-module InterfacesBasic Mtbf X330STK-ML Safety Information Approved SFF/SFP Gbic TransceiversLaser Classification Class Luokan Klass Laser Product Laserlaite Laser Apparat Installation Installing and Removing a SFF/SFP Gbic TransceiverSpecifications LX Transceiver ELX Gigabit Fiber Optic CablingAgency Approval Console Pin Assignments TXDRXD GND DTR RTS CTS Chapter Avaya P332G-ML User’s Guide Installation Page Site Preparation InstallationRequired Tools Power Requirements AC Rack Mounting Optional P332G-ML Rack Mounting To connect stacked switches Installing the X330STK-ML Stacking Sub-Module OptionalConnecting Stacked Switches Incorrect Stack Connection P330 Stack Connections Prerequisites Connecting Cables to Network EquipmentMaking Connections to Network Equipment 1000BASE-ELX Powering On Avaya P330 Switch DC Powering Up the Avaya P330Powering On Avaya P330 Module AC Post-Installation PWR Avaya P332G-ML Front and Rear PanelsAvaya P332G-ML Front Panel LNK LAG Avaya P332G-ML Back Panel Avaya P332G-ML - Select buttons BUPS-ML Input Connector BUPS-ML Input Connector StickerPage Establishing a Serial Connection Configuring the Terminal Serial Port ParametersConnecting a Terminal to the Avaya P330 Serial port P330 Sessions Assigning P330’s IP Stack Address Establishing a Telnet Connection Establishing an SSH Connection Overview Connecting a Modem to the Console PortEstablishing a Modem PPP Connection with the P330 Security Levels Entering the Supervisor Level Entering the CLI Defining new local usersExiting the Supervisor Level Snmp Support Introduction to SnmpSnmp Versions Managers and Agents Manager/Agent Communication SNMPv1 SNMPv2c SNMPv3 Groups Snmp Commands Views User Authentication User Authentication SSH Protocol Support Introduction to SSH SSH Commands SSHClientConnection SCP Protocol Support Radius Introduction to Radius Radius Authentication Procedure Radius Commands Introduction to Telnet Telnet CommandsTelnet Client Support Introduction Recovery PasswordRecovery Password Commands Allowed Managers Introduction Allowed Managers CLI CommandsAllowed Managers Allowed Protocols Introduction Allowed Protocols CLI CommandsAllowed Protocols User Authentication Configuration Page Avaya P330 Default Settings P330 Default SettingsConfiguring the Switch SSH SnmpHttp Switch Configuration Basic Switch Configuration Operating parameters System Parameter ConfigurationIdentifying the system UTC Uploading and Downloading Device Configurations and ImagesNetwork Time Acquiring Protocols Parameter Configuration Layer 2 Configuration File Layer 3 Configuration File Tftp Switch Configuration System Logging Messages System LoggingSystem Logging Introduction Sinks Applications Syslog Servers Syslog Configuration CLI Commands Monitoring CPU Utilization Switch Configuration Avaya P332G-ML User’s Guide Rmon Smon Avaya P330 Layer 2 FeaturesOverview Configuring Ethernet Parameters EthernetFast Ethernet Gigabit Ethernet Priority SpeedFlow Control CAM Table MAC AddressMmmmmmssssss MM-MM-MM-SS-SS-SS Ethernet Configuration CLI Commands Ethernet Implementation in the Avaya P332G-ML Vlan Configuration Vlan Overview Multi Vlan Binding Sales Mktg EngineeringVlan Tagging IDs PVIDs present in the switch Entries and all the ports’ Ingress Vlan Security Vlan CLI CommandsAutomatic Vlan Learning Vlan Implementation in the Avaya P332G-ML Spanning Tree per Port Spanning Tree ProtocolSpanning Tree Protocol Port Roles Rapid Spanning Tree Protocol RstpAbout the 802.1w Standard Spanning Tree Implementation in the P330 Family Spanning Tree Protocol CLI Commands Avaya P330 Layer 2 Features Configuring the P330 for MAC Aging MAC Aging MAC Aging CLI Commands LAG CLI Commands LAG Overview LAG Implementation in the Avaya P330 Family of Products Port Redundancy Port Redundancy Operation Port Redundancy CLI Commands Intermodule Port Redundancy Avaya P330 Layer 2 Features IP Multicast Filtering IP Multicast CLI Commands IP Multicast Implementation in the Avaya P332G-ML Rmon CLI Commands Rmon Overview Avaya P330 Layer 2 Features Smon Smon Overview Port Mirroring Configuration Port Mirroring CLI commandsPort Mirroring Overview Port Mirroring Constraints Weighted Queuing CLI Commands Weighted QueuingImplementation of Weighted Queuing in the P330-ML Port Classification CLI Commands Port Classification Implementation of Stack Health in the P330 Family Stack RedundancyStack Health Stack Health CLI Commands Avaya P330 Layer 2 Features 106 Avaya P332G-ML User’s Guide Avaya P330 Layer 3 Features What is Routing? Routing Multinetting Multiple Subnets per Vlan Routing ConfigurationForwarding IP Configuration IP Configuration CLI Commands Assigning Initial Router Parameters Routerconfigure-ifinterface-name# prompt appears Obtaining and Activating a License Key Obtaining a Routing License Key 114 Avaya P332G-ML User’s Guide License Key CLI Commands Activating a Routing License Key Avaya P330 Layer 3 Features 116 Avaya P332G-ML User’s Guide RIP Routing Interchange Protocol Configuration RIP Overview RIP CLI Commands RIP2 Avaya P332G-ML User’s Guide 119 Ospf Open Shortest Path First Configuration Ospf Overview Ospf CLI Commands Static Routing Overview Static Routing ConfigurationStatic Routing Configuration CLI Commands Route Preferences RIP Route Redistribution Commands Route Redistribution ARP Address Resolution Protocol Table Configuration ARP Overview ARP CLI Commands ARP Table BOOTP/DHCP Overview DHCP/BOOTP Relay BOOTP/DHCP CLI Commands NetBIOS Re-broadcast Configuration CLI Commands NetBIOS Re-broadcast ConfigurationNetBIOS Overview Vrrp Virtual Router Redundancy Protocol Configuration Vrrp Overview Vrrp Configuration Example Case#1 Vrrp CLI Commands Case #2 Avaya P332G-ML User’s Guide 133 Srrp Overview Srrp ConfigurationSrrp Configuration Example Srrp CLI Commands Policy Configuration CLI Commands Policy ConfigurationPolicy Configuration Overview Avaya P332G-ML User’s Guide 137 Policy Configuration Example Avaya P330 Policy P330-1super#ip access-list 100 2 fwd3 tcp any host IP Fragmentation/Reassembly CLI Commands IP Fragmentation and ReassemblyIP Fragmentation and Reassembly Overview Troubleshooting and Maintenance Page Troubleshooting the Installation Troubleshooting the InstallationPage Maintenance Replacing the Stacking Sub-module Chapter Maintenance 146 Avaya P332G-ML User’s Guide Obtain Software Online Downloading Software Updating the SoftwareSoftware Download Download New Version without Overwriting Existing Version Example