How to Serve 60 Million Subscribers
summary
Design and implementation of a PCRF node (per 3GPP) to serve 60 million mobile subscribers. Covers building a real-time-capable decision engine that enforces subscriber QoS and rate limits based on tariff/options, location, network congestion, etc., with requirements for geo-redundancy, in-datacenter failover, horizontal scaling and handling ≥10k requests/sec per node.
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