Srrp Configuration, Srrp Overview | Avaya P332G-ML manual

Chapter 12 Avaya P330 Layer 3 Features

SRRP Configuration

SRRP Overview

Avaya P330 IP SRRP redundancy capabilities provide automatic backup Layer 3 switching for IP stations. P330 units can be configured to back each other up so that if one fails the other will take over its forwarding functions. The backup P330 is not idle. As long as both P330 units are functional, traffic is shared between them. The P330 can back up another P330 unit or any other router.

A P330 unit configured to back up another unit monitors the other's status by polling it at configured intervals, and automatically detects when the other fails and when it becomes functional again. When detecting a failure, the backup P330 sends a gratuitous ARP message that causes all stations to send their IP traffic to the backup P330 MAC address instead of the failed unit MAC address. As long as it is an active backup resulting from the failure of the main unit, the backup P330 answers ARP requests for the main unit, providing its own MAC address

SRRP Configuration Example

	P330 - Backup Router
IP: 20.20.20.10	IP: 20.20.20.1
DG: 20.20.20.2	MAC: AB.CD.EF.AB.CD.EF

IP: 20.20.20.20	Main Router
DG: 20.20.20.2	IP: 20.20.20.2

MAC: CD.EF.AB.CD.EF.AB

•The P330 in SRRP mode can backup any other router

•The integrity of the main router is checked via periodic ping polling (default period is 3 sec.)

•When the backup router doesn’t receive ping response after pre-configured period (default 12 sec.), the backup sends an ARP request (broadcast) advertising the failed router IP address with its’ own MAC, so all the stations will start to direct their packets to the new MAC.

134	Avaya P332G-ML User’s Guide

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Avaya P332G-ML manual Srrp Overview, Srrp Configuration Example

Contents

Avaya P332G-ML Avaya.com Contents Section Installation Radius Section Configuration LAG Rmon Bootp RIP2Dhcp Section Troubleshooting and Maintaining Table of Contents Viii Avaya P332G-ML User’s Guide Conventions Used in the Documentation Before you Install the P332G-MLSafety Information FCC Notice CLI Conventions Warranty Avaya Support Avaya P332G-ML User’s Guide Overview Page About the P332G-ML Avaya P332G-ML OverviewIntroduction Avaya P332G-ML Highlights Network Management and Monitoring Layer 3 Features P330-MLCommand Line Interface CLI Device Manager Embedded Web Fans, Power Supply, and BUPS-ML Monitoring Avaya Integrated ManagerPort Mirroring Avaya P332G-ML Overview Avaya P332G-ML User’s Guide Standards and Compatibility Avaya P330 Standards SupportedIetf Layer Ietf Network Monitoring Power Requirements SpecificationsP332G-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 Gigabit Fiber Optic Cabling Agency ApprovalELX RXD Console Pin AssignmentsTXD GND DTR RTS CTS Chapter Avaya P332G-ML User’s Guide Installation Page Installation Required ToolsSite Preparation Power Requirements AC Rack Mounting Optional P332G-ML Rack Mounting Installing the X330STK-ML Stacking Sub-Module Optional Connecting Stacked SwitchesTo connect stacked switches Incorrect Stack Connection P330 Stack Connections Connecting Cables to Network Equipment Making Connections to Network EquipmentPrerequisites 1000BASE-ELX Powering Up the Avaya P330 Powering On Avaya P330 Module ACPowering On Avaya P330 Switch DC Post-Installation Avaya P332G-ML Front and Rear Panels Avaya P332G-ML Front PanelPWR LNK LAG Avaya P332G-ML Back Panel Avaya P332G-ML - Select buttons BUPS-ML Input Connector BUPS-ML Input Connector StickerPage Configuring the Terminal Serial Port Parameters Connecting a Terminal to the Avaya P330 Serial portEstablishing a Serial Connection P330 Sessions Assigning P330’s IP Stack Address Establishing a Telnet Connection Establishing an SSH Connection Connecting a Modem to the Console Port Establishing a Modem PPP Connection with the P330Overview Security Levels Entering the Supervisor Level Defining new local users Exiting the Supervisor LevelEntering the CLI Snmp Versions Snmp SupportIntroduction to Snmp 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 Telnet Commands Telnet Client SupportIntroduction to Telnet Recovery Password Recovery Password CommandsIntroduction Allowed Managers CLI Commands Allowed ManagersAllowed Managers Introduction Allowed Protocols CLI Commands Allowed ProtocolsAllowed Protocols Introduction User Authentication Configuration Page P330 Default Settings Configuring the SwitchAvaya P330 Default Settings Snmp HttpSSH Switch Configuration Basic Switch Configuration System Parameter Configuration Identifying the systemOperating parameters Uploading and Downloading Device Configurations and Images Network Time Acquiring Protocols Parameter ConfigurationUTC Layer 2 Configuration File Layer 3 Configuration File Tftp Switch Configuration System Logging System Logging IntroductionSystem Logging Messages Sinks Applications Syslog Servers Syslog Configuration CLI Commands Monitoring CPU Utilization Switch Configuration Avaya P332G-ML User’s Guide Avaya P330 Layer 2 Features OverviewRmon Smon Fast Ethernet Configuring Ethernet ParametersEthernet Gigabit Ethernet Speed Flow ControlPriority MAC Address Mmmmmmssssss MM-MM-MM-SS-SS-SSCAM Table Ethernet Configuration CLI Commands Ethernet Implementation in the Avaya P332G-ML Vlan Configuration Vlan Overview Sales Mktg Engineering Vlan TaggingMulti Vlan Binding IDs PVIDs present in the switch Entries and all the ports’ Vlan CLI Commands Automatic Vlan LearningIngress Vlan Security Vlan Implementation in the Avaya P332G-ML Spanning Tree Protocol Spanning Tree ProtocolSpanning Tree per Port Rapid Spanning Tree Protocol Rstp About the 802.1w StandardPort Roles 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 Overview Port Mirroring ConfigurationPort Mirroring CLI commands Port Mirroring Constraints Weighted Queuing Implementation of Weighted Queuing in the P330-MLWeighted Queuing CLI Commands Port Classification CLI Commands Port Classification Stack Redundancy Stack HealthImplementation of Stack Health in the P330 Family 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 Routing Configuration ForwardingMultinetting 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 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 Configuration Static Routing Configuration CLI CommandsStatic 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 Re-broadcast Configuration NetBIOS OverviewNetBIOS Re-broadcast Configuration CLI Commands 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 Configuration Srrp Configuration ExampleSrrp Overview Srrp CLI Commands Policy Configuration Policy Configuration OverviewPolicy Configuration CLI Commands 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 and Reassembly IP Fragmentation and Reassembly OverviewIP Fragmentation/Reassembly CLI Commands 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 Updating the Software Software DownloadObtain Software Online Downloading Software Download New Version without Overwriting Existing Version Example