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Tips on configuring the high availability feature for Load Balancer

Troubleshooting


Problem

With the high availability function for Load Balancer, packet distribution takeovers occur if the primary partner fails or is shut down. When the backup partner assumes packet forwarding function, the cluster addresses (and return addresses if used) are moved to the new active Load Balancer. To maintain existing connections after a high availability takeover, connection and affinity replication can be configured. There are numerous timing and configuration considerations that can affect this takeover operation.

Symptom

The tips listed in this technote help alleviate problems that arise from high availability configuration problems such as:
  • Connections dropped after takeover
  • Partner machines are unable to synchronize
  • Requests erroneously directed to the backup partner machine

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Document Information

Modified date:
03 March 2025

UID

swg21211427