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  • Diagrams and Poster: NetScaler ADC - Troubleshooting High Availability Cheat Sheet


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      Summary: A high availability (HA) deployment of two NetScaler ADC appliances can provide uninterrupted operation in any transaction. One appliance configured as the primary node and the other as the secondary node. The primary node accepts connections and manages servers. The secondary node monitors the primary. If for any reason the primary node is unable to accept connections, the secondary node takes over.
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    Diagrams and Poster: NetScaler ADC - Troubleshooting High Availability Cheat Sheet

    Contributed By: Gene Whitaker

    Special Thanks To: Adrianna Pellitteri

    Overview

    A high availability (HA) deployment of two NetScaler ADC appliances can provide uninterrupted operation in any transaction. One appliance configured as the primary node and the other as the secondary node. The primary node accepts connections and manages servers. The secondary node monitors the primary. If for any reason the primary node is unable to accept connections, the secondary node takes over.

    By default, the NetScaler ADC sends heartbeats every 200 ms. A dead interval is sent every 3 sec. After three seconds, a peer node is marked DOWN if heartbeat messages are not received from the peer node.

    The NetScaler ADC high availability and sync cheat sheet provides you with the most commonly used resources to troubleshoot NetScaler ADC high availability and sync issues.

    Use the following link to download Troubleshooting NetScaler ADC High Availability Cheat Sheet .

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