Juniper Networks 200 Series manual Establishing AN HA Connection Between Devices

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Chapter 3 Configuring the Device

ESTABLISHING AN HA CONNECTION BETWEEN DEVICES

To assure continuous traffic flow in the event of system failure, you can cable and configure two NetScreen devices in a redundant cluster. The devices propagate all network, configuration and session information to each other. Should one device fail, the other takes over the traffic processing.

Note: For the NetScreen-204, the default HA interface is ethernet4. For the NetScreen-208, the default HA interface is ethernet8. (Each is bound to the HA security zone.)

The following diagram shows a typical HA setup for NetScreen-208 devices.

Internet

Router

Router

Layer-3 Switch 1

Layer-3 Switch 2

Device 1

To ethernet3

To ethernet3 Device 2

	To ethernet2	To ethernet2	To ethernet8
To ethernet1	DMZ		To ethernet1

DMZ LAN

Switch 3

Switch 4

LAN

20	User’s Guide

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Contents NETSCREEN-200 Series Copyright Notice Contents IX-I Preface Guide OrganizationCommand Line Interface CLI Conventions Juniper Networks Netscreen PublicationsOverview1 NETSCREEN-200 Systems NetScreen-204 DeviceNetScreen-208 Device System Status LED Display Front PanelAsset Recovery Pinhole AlarmConsole and Modem Ports Compact Flash Card SlotRear Panel Power SuppliesEthernet Interfaces Power Fuse Overview User’s Guide Installing the Device Performing EQUIPMENT-RACK Installation Equipment Rack Installation GuidelinesGeneral Installation Guidelines Mid-Mount Connecting the PowerFront Mount Wiring a DC Power Supply Connecting the NETSCREEN-200 Device to Other Devices Installing the Device User’s Guide Configuring the Device Operational Modes Transparent ModeRoute Mode NETSCREEN-200 Series Device Interfaces Ethernet1 through ethernet8Connecting the Device AS a Single Security Gateway Connectivity ExamplesPerforming Device Connection Establishing AN HA Connection Between Devices DeviceDevice Performing Initial Connection and Configuration Establishing a Terminal Emulator ConnectionChanging Your Admin Name and Password Setting Port and Interface IP AddressesSetting the IP Address of the Management Interface Starting a Console Session Using Telnet Configuring the Device for Telnet and Webui SessionsStarting a Console Session Using Dialup Establishing a GUI Management SessionNetScreen WebUI application window appears Using CLI Commands to Reset the Device Asset RecoveryUsing the Asset Recovery Pinhole to Reset the Device Configuring the Device User’s Guide Specifications NETSCREEN-200 Attributes Electrical SpecificationSafety Certifications EnvironmentalIndex IX-II