HP SuperStack 3 Load Balancer Appliance manual Click Server Assignments

Page 67

Assigning Servers to Service

67

Assigning Server to In addition to performing Network Address Translation, the Server Load Services (Advanced) Balancer is capable of translating the TCP or UDP port on which the

service is operating. The virtual service can be configured for a well known port, while the servers respond to an alternate port. For example, a Web service is set up on the standard TCP port 80 and translated to 8080. When a request is received from a client on port 80, the Server Load Balancer changes the port to 8080 before forwarding the packet on to one of the available servers. When the server reply is received by the Server Load Balancer, it changes the port number back to 80, then forwards the packet on to the client.

To change the port, complete the following steps:

1Click Server Assignments.

2Click on the cell next to Server A. A pop-up menu appears.

3Click Assign server to service (Advanced).... The Assign Server to Service window appears.

4Enter 8080 in the Server port field.

5Click OK.

Image 67

Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Setting UP for Management Technical Specifications and PIN-OUTS 3Com Knowledgebase Web Services About this Guide Icon Description ConventionsConvention Description Documentation Related DocumentationProduct RegistrationAbout this Guide Balancer 12 10/100 LAN Ports Feature Server Load Balancer Plus MemoryFeature Server Load Balancer Plus Algorithms Server Load BalancerBalancer Front View Detail Server Load1000BASE-SX Port Status LEDs Color Indicates Power/Self Test LEDPower LED 10/100BASE-T Port Status LEDsBalancer Rear View Detail Power SocketDisconnecting the power cord Advanced Redundant Power System outputType 3 Power Module, read the Safety Information section Documentation shipped with the power systemInstalling the Server Load Installing the Server Load Balancer Server Load Balancer if they have been fitted Rack-mountingTop of Each Other ChoosingCorrect Cables Placing Units OnPowered-up and ready for operation Power-upSequence On powering-up, the Power/Self Test LED lights yellow Problem Suggested SolutionSetting UP for Management Assigning an IP Methods Managing Server Load BalancerAddress SEC Setting UP for Management Interface Security Warning Window Web Interface pages appears To install the plug-in, complete the following stepsInterfacesteps Network Password window appearsAfter a management session Navigation Tree Using the Web InterfaceWeb interface is made up of three areas BannerSystem Summary Summary information is displayed in a two tablesDevice Summary Unit Hotspot Port HotspotsColor Action Control ButtonsLogical View Button Action Help View Specifying Setting up SnmpTrap Community String field is defaulted to public ManagementOperating Software UpgradingLoad Balancer Working with the WEB Interface Server Load Balancing Approximately double the performance of Server B ConfigurationBalancing ExampleConfiguring for Non-redundant Server Load Balancing Click Next. The Getting Started Password page appears Configuring Redundant Redundant Server Balancer 1 and is configured for the same serviceLoad Balancing Load Balancer for active-passive redundancy Configuring forActive-Passive RedundancyEnter 10.20.30.56 in the Device B IP Address field Load Balancer for active-active redundancy Active-ActiveClick Next. The Getting Started IP Settings page appears Enter 26 in the Virtual router ID B field SettingSettings Enter 25 in the Virtual router ID a fieldConfiguring Redundant Server Load Balancing Redirection Cache Redirection Configuration Example Non-redundant ConfigurationDefining a Cache SubnetClick Next Click Finish. Your cache subnet has been added Been created ServicesAdding a Cache Assigning Caches toEnter a descriptive name, such as Cache2, in the Name field StepsRound Robin Weighted Round RobinWeighted Least Supported Algorithms Description DestinationRetries field TimeoutThis sets the number of retries a health check is attempted Balancing Click Finish. Your server subnet has been added Click Next. The Server Subnet Define Subnet page appearsChanging Lan Port Roles Adding a Server Enter a descriptive name, such as Web, in the Name field Click Continue with Advanced SettingsHighlight Http and click the Next Showing Status To ServiceServer load balancing service Assigning ServersClick on the cell next to Server A. a pop-up menu appears Click Server AssignmentsEnter 8080 in the Server port field Click OK To add a user group, complete the following steps Adding a UserGroup This user groupClick Permissions To assign permissions, complete the following stepsResponse Supported Algorithms Description Round RobinQuickest Last Response Quickest AverageThis sets the number of retries in a health check period Filter Description Select the attack filters you wish to enable and click OKMitigation FiltersModifying Monitor Access Modifying Admin AccessSelect Security User Configuring for Load Balancing Safety Information Information Important SafetyImportant Safety Information Hub plus étroites ’information deSécurité Importante Personnel qualifié’information de Sécurité Importante Europe Wichtige Sicherheitsinformat ionenAchtung Faseroptikanschlüsse Optische Sicherheit Appendix a Safety Information PIN -OUTS SpecificationsBalancer and the Server Load Balancer Plus Pin to 9-pin Console Port CablePC-AT Serial Pin to RS232 25-pinOnline Technical Services3Com Username anonymous Europe, Middle East Africa Asia, Pacific RimNorth America Country Telephone Number Fax Number Appendix C Technical Support Numbers IndexSpecifications, system 83 summary view Summary view 32 World Wide Web WWW Index Superstack 3 Server Load Balancer 3C16120 Obtaining Warranty Service Warranties Exclusive Other Services Regulatory Notices

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