Techniques are described herein for hierarchal Bidirectional Forwarding Detection (BFD) to scale liveliness detection. Scalability of BFD sessions to Master and Standby nodes is a concern in current implementations. A fast detection mechanism such as BFD is required to support fast detection of liveliness of cluster nodes.
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Singh, Tapraj and Lo, Jeffrey, "FASTER CLUSTER CONVERGENCE AND LIVELINESS DETECTION THROUGH HIERARCHAL BIDIRECTIONAL FORWARDING DETECTION", Technical Disclosure Commons, (November 11, 2019)