Extreme Networks Px Series manual Configuring Virtual Services

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Configuring Virtual Services

a system in another geographical location). To specify the server of last resort, use the optional server-last-resortargument:

config server-group name <string> policy <policy spec>

server-last-resort <index>

After a server-group is created, add a server or range of servers to it using the following commands:

config server-group name <group name> add-server index <number> config server-group name <group name> add-server ip-address <ip> config server-group name <group name> add-server index <index - index2> config server-group name <group name> add-server ip-address <ip - ip>

You can specify a server or range of servers by IP address or by server index. For example:

config server-group name group1 add-server index 1

config server-group name group1 add-server ip-address 10.10.10.2 config server-group name group1 add-server index 1 - 34 config server-group name group1 add-server

ip-address 10.10.10.2 - 10.10.10.15

To delete a server or range of servers from a group, use the following commands:

config server-group name <name> delete-server index <index num>

config server-group name <name> delete-server index <index> - <index2> config server-group name <text> delete-server ip-address <ip>

config server-group name <name> delete-server ip-address <ip - ip>

This removes the specified server (or servers) from the server group, but leaves it configured in the system, so that it can be added to a different group.

Configuring Virtual Services

The virtual service is the IP address and port to which clients on the Internet actually connect. Use the following basic command to configure a virtual service:

config service vip <ip address> port <number> protocol [tcpudp]

[L4L7] server-group-name <label>

Px Series Application Switch Installation and Configuration Guide

5-3

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Contents Published April Part number 100101-00 Rev Page Contents Installing the PxM Application Switch Module Configuring Servers and Services Index Index of Commands Introduction PrefaceText Conventions ConventionsIcon Alerts you to Convention DescriptionRelated Publications Preface Purpose of Server Load Balancing Server Load Balancing Concepts1Conceptual view of server load balancing TermsLayer 4 Load Balancing Load Balancing Modes2Single client-server transaction using layer Layer 7 Load Balancing and Content Analysis3Establishing a layer 7 request Port Rewrite Getting Started on Load Balancing ConfigurationGetting Started on Load Balancing Configuration Page SummitPx1 Front View Installing the SummitPx1 Application SwitchOverview of the SummitPx1 Application Switch Color Indicates 1Px series application switch LEDsSignal Description SummitPx1 Application Switch Rear View2DB-9 Adapter Pinouts To DB-9Rack Mounting Installing the SummitPx1 Application SwitchDetermining the Location Free-Standing Powering On the SummitPx1Setting Up Console Communication Configuring Switch IP Parameters Configuring the 10/100 Ethernet Management Port Installing I/O Modules Installing the PxM Application Switch ModuleRemoving I/O Modules Removing I/O Modules Page Managing the Switch Abbreviated Syntax and Command Completion Using the Command-Line InterfaceSyntax Symbols 1Command Syntax SymbolsLine-Editing Keys Symbol DescriptionSpecifying Text Values 2Line-Editing KeysPrompt Text Configuring Management AccessCommand History Changing the Default Passwords Modifying Accounts Creating AccountsManaging the PxM Command DescriptionConfiguring VLANs 4SNMP Configuration Settings Configuring SnmpSetting Description System ContactSettingDescription Configuring DNS Client Services5DNS Client Configuration Commands Using Secure Shell 2 SSH2Config ssh2 key Enabling SSH2 for Inbound Switch AccessUsing SCP2 from an External SSH2 Client SSH2 Client Functions on the Switch Checking Basic Connectivity UtilitiesShowing CPU Load Logging Starting the GlobalPx Content Director Agent Configuring a Startup Banner MessageInternet DNS server Example ConfigurationFollowing commands configure all system-related facilities Page Configuring Real Servers Configuring Servers and ServicesConfiguring Server Groups Configuring Virtual Services Layer 4 Port-based Load Balancing Layer 7 Virtual ServicesConfiguring Traffic Tagging Tag Specification Description Tag Range Configuration Example1Tag Specifications Configuration Example Page Scheduling Policies Choosing Policies, Persistence Modes, and NATSpecifier Policy Description Persistence Modes1Scheduling Policies UDP Flow Persistence Client IP Persistence Mode1Client IP persistence mode Cookie Persistence Modes Configuring Client IP Stickiness2Self-identifying cookie persistence mode Persistence Modes Hashed Cookie Persistence Session Learned Cookie Persistence Mode 4Learned cookie persistence mode Configuring Cookie Stickiness SSL Session Identifier Persistence NAT Modes Full-NAT ModeConfiguring Full-NAT Mode and Proxy IP Addresses Server-only Half-NAT ModeConfiguring Half-NAT Mode Config source-flow name next-hop gateway-mode ip Real Syslog server SummitPx1 Configuration Example Page Domain and URL Switching URL Switching1Typical switching scenario Domain Switching2Domain switching example URL Switching Configuring URL Switching3Simple URL switching example 4More Complicated URL switching example 5Hierarchical approach to pattern rules Wildcard Example Definition Creating Domain and URL Switching Rules1Wildcard Combinations Modifying Existing URL Rules and Domains Application Servers Management net Configuration Example Page Using Vrrp with the SummitPx1 Configuring RedundancyGive backup systems lower priorities Adding and Configuring VRRPsUsing Vrrp in Existing Redundant Networks Vrrp Automatic Synchronization 1Application switch using multiple VLANsFollowing commands can be passed from master to backup Using Esrp with the PxM Configuring Redundancy for the PxMFor SW2 Configuring the PxM for Multiple VLANsConfiguring a Default Gateway Overview Health ChecksServer Startup Pacing Health Checking Procedure Types of Health Checks Configuring Health ChecksTimers and Counters You can disable health checks for a server group Page Showing Traffic Statistics Monitoring the Switch1Statistics Display Commands Displays packet-level counters for 2Configuration Display Commands Showing Configuration DetailsConfiguration Displays SummitPx128 # show server details Status DisplaysColumn Description Show health Information5Management and Troubleshooting Commands Managing and Troubleshooting OperationCommandDescription Esrp IndexHttp GET AUX Page Index of Commands