ARP Table, ARP CLI Commands | Avaya P334T-ML guide

Chapter 12 Avaya P330 Layer 3 Features

The ARP Table

The ARP table is used to store recently used pairs of IP/MAC addresses. This saves time and communication costs, since the host looks in the ARP cache first when transmitting a packet. If the information is not there, then the host sends an ARP Request (see Figure 12.2).

ARP CLI Commands

In order to...	Use the following command...


Add a permanent entry to the	arp
Address Resolution Protocol (ARP)
cache

Configure the amount of time that	arp timeout
an entry remains in the ARP cache

Set the amount of time that an entry	no arp timeout
remains in the ARP cache back to
default

Set the maximum number of ARP	ip max-arp-entries
cache entries allowed in the ARP
cache

Set the maximum number of ARP	no ip max-arp-entries
cache back to default

Enable proxy ARP on an interface	ip proxy-arp

Disable proxy ARP on an interface	no ip proxy-arp

Delete all dynamic entries from the	clear arp-cache
ARP cache and the IP route cache

Display the Address Resolution	show ip arp
Protocol (ARP) cache

Display the IP address of a host,	show ip reverse-arp
based on a known MAC address

138	Avaya P334T-ML User’s Guide

Image 154

Avaya P334T-ML manual ARP Table, ARP CLI Commands

Contents

Avaya P334T-ML Avaya.com Contents Table of Contents Radius Table of Contents LAG Rmon RIP2 BootpDhcp Avaya P334T-ML User’s Guide Vii Table of Contents Viii Avaya P334T-ML User’s Guide Conventions Used in the Documentation Before you Install the P330-MLSafety Information FCC Notice CLI Conventions Warranty Avaya Support Avaya P334T-ML User’s Guide Overview Page Introduction Avaya P334T-ML FeaturesAvaya P334T-ML Overview About the P334T-ML Network Management and Monitoring Layer 3 Features P330-MLCommand Line Interface CLI Device Manager Embedded Web Avaya Integrated Manager Port Mirroring Fans, Power Supply, and BUPS-ML Monitoring Avaya P330 Standards Supported Standards and CompatibilityIetf Layer Ietf Network Monitoring Power Requirements SpecificationsP334T-ML Switch Physical Safety DC Version SafetySafety AC Version EMC Emissions Basic Mtbf Stacking Sub-moduleInterfaces X330STK-ML Laser Classification Safety InformationApproved SFF/SFP Gbic Transceivers Class Luokan Klass Laser Product Laserlaite Laser Apparat Specifications InstallationInstalling and Removing a SFF/SFP Gbic Transceiver LX Transceiver Agency Approval Gigabit Fiber Optic CablingELX RXD Console Pin AssignmentsTXD GND DTR RTS CTS Chapter Avaya P334T-ML User’s Guide Installation Page Required Tools InstallationSite Preparation Power Requirements AC Rack Mounting Optional P334T-ML Rack Mounting Connecting Stacked Switches Installing the X330STK-ML Stacking Sub-Module OptionalTo connect stacked switches Incorrect Stack Connection P330 Stack Connections Making Connections to Network Equipment Connecting Cables to Network EquipmentPrerequisites 1000BASE-ELX Powering On Avaya P330 Module AC Powering Up the Avaya P330Powering On Avaya P330 Switch DC Post-Installation Avaya P334T-ML Front and Rear Panels Avaya P334T-ML Front Panel PWR OPR SYS LAG Avaya P334T-ML Back Panel Avaya P334T-ML- Select buttons BUPS-ML Input Connector BUPS-ML Input Connector Sticker Connecting a Terminal to the Avaya P330 Serial port Configuring the Terminal Serial Port ParametersEstablishing a Serial Connection P330 Sessions Assigning P330’s IP Stack Address Establishing a Telnet Connection Establishing an SSH Connection Establishing a Modem PPP Connection with the P330 Connecting a Modem to the Console PortOverview Security Levels Entering the Supervisor Level Exiting the Supervisor Level Defining new local usersEntering the CLI Snmp Versions Snmp SupportIntroduction to Snmp Managers and Agents Manager/Agent Communication SNMPv1 SNMPv2c SNMPv3 Groups Snmp Commands Views User Authentication SSH Protocol Support Introduction to SSH User Authentication SSH Commands SCP Protocol Support Radius Introduction to Radius Illustrates the Radius authentication procedure Radius Commands Telnet Client Support Introduction to Telnet Recovery Password Commands Recovery PasswordTelnet Commands Introduction Allowed Managers Allowed Managers CLI CommandsAllowed Managers Introduction Allowed Protocols Allowed Protocols CLI CommandsAllowed Protocols Introduction User Authentication Configuration Page Configuring the Switch P330 Default SettingsAvaya P330 Default Settings Http SnmpSSH Ports Ports 51 P330 Default Settings Avaya P334T-ML User’s Guide Switch Configuration Basic Switch Configuration Identifying the system System Parameter ConfigurationOperating parameters Network Time Acquiring Protocols Parameter Configuration Uploading and Downloading Device Configurations and ImagesUTC Layer 2 Configuration File Tftp Layer 3 Configuration File Switch Configuration System Logging Introduction System LoggingSystem Logging Messages Sinks Applications Syslog Servers Syslog Configuration CLI Commands Switch Configuration Monitoring CPU Utilization Switch Configuration Avaya P334T-ML User’s Guide Overview Avaya P330 Layer 2 FeaturesRmon Smon Fast Ethernet Configuring Ethernet ParametersEthernet Gigabit Ethernet Flow Control SpeedPriority Mmmmmmssssss MM-MM-MM-SS-SS-SS MAC AddressCAM Table Ethernet Configuration CLI Commands Ethernet Implementation in the Avaya P334T-ML Vlan Configuration Vlan Overview Vlan Tagging SalesSales Engineering Mktg Multi Vlan Binding IDs PVIDs present in the switch Entries and all the ports’ Automatic Vlan Learning Vlan CLI CommandsIngress Vlan Security Vlan Implementation in the Avaya P334T-ML How Port Based Authentication Works Port Based Network Access Control PbnacPbnac Implementation in the P330 Family Configuring the P330 for Pbnac Pbnac CLI Commands Avaya P330 Layer 2 Features Spanning Tree Protocol Spanning Tree ProtocolSpanning Tree per Port About the 802.1w Standard Rapid Spanning Tree Protocol RstpPort Roles Spanning Tree Implementation in the P330 Family Spanning Tree Protocol CLI Commands Avaya P330 Layer 2 Features MAC Security MAC Security Implementation in P330 MAC Security CLI Commands MAC Aging CLI Commands Configuring the P330 for MAC AgingMAC Aging 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 102 Avaya P334T-ML User’s Guide IP Multicast Filtering IP Multicast CLI Commands IP Multicast Implementation in the Avaya P334T-ML Rmon CLI Commands Rmon Overview 106 Avaya P334T-ML User’s Guide Smon Smon Overview Port Mirroring Overview Port Mirroring ConfigurationPort Mirroring CLI commands Port Mirroring Constraints Multilayer Policy Access ListsAbout Multilayer Policy Trust Modes DSCP-to-COS MapsMultilayer Policy Implementation in the P334T-ML Configuration Requirements Configuring the P334T-ML for Multilayer PolicyConfiguration File Management Multilayer Policy CLI Commands Avaya P334T-ML User’s Guide 113 Implementation of Weighted Queuing in the P330-ML Weighted QueuingWeighted Queuing CLI Commands Port Classification CLI Commands Port Classification Stack Health Stack RedundancyImplementation of Stack Health in the P330 Family Stack Health CLI Commands Avaya P330 Layer 2 Features 118 Avaya P334T-ML User’s Guide Avaya P330 Layer 3 Features What is Routing? Routing Forwarding Routing ConfigurationMultinetting Multiple Subnets per Vlan 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 126 Avaya P334T-ML User’s Guide License Key CLI Commands Activating a Routing License Key Avaya P330 Layer 3 Features 128 Avaya P334T-ML User’s Guide RIP Routing Interchange Protocol Configuration RIP Overview RIP CLI Commands RIP2 Avaya P334T-ML User’s Guide 131 Ospf Open Shortest Path First Configuration Ospf Overview Ospf CLI Commands Static Routing Configuration CLI Commands Static Routing ConfigurationStatic Routing Overview 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 Overview NetBIOS Re-broadcast ConfigurationNetBIOS Re-broadcast Configuration CLI Commands Vrrp Virtual Router Redundancy Protocol Configuration Vrrp Overview Vrrp Configuration Example Case#1 Vrrp CLI Commands Case #2 Avaya P334T-ML User’s Guide 145 Srrp Configuration Example Srrp ConfigurationSrrp Overview Srrp CLI Commands Policy Configuration Overview Policy ConfigurationPolicy Configuration CLI Commands Avaya P334T-ML User’s Guide 149 Policy Configuration Example Avaya P330 Policy P330-1super#ip access-list 100 2 fwd3 tcp any host IP Fragmentation and Reassembly Overview IP Fragmentation and ReassemblyIP Fragmentation/Reassembly CLI Commands Troubleshooting and Maintenance Page Troubleshooting the Installation Troubleshooting the InstallationPage Maintenance Replacing the Stacking Sub-module Chapter Maintenance 158 Avaya P334T-ML User’s Guide Software Download Updating the SoftwareObtain Software Online Downloading Software Download New Version without Overwriting Existing Version Example