Design, Implementation, and Performance of A Load Balancer for SIP Server Clusters

Design, Implementation, and Performance of A Load Balancer for SIP Server Clusters Abstract: This load balancer improves both throughput and response time versus a single node, while exposing a single interface to external clients. The algorithm achieves Transaction Least-Work-Left (TLWL), achieves its performance by integrating several features: knowledge of the SIP protocol; dynamic estimates of […]


Router Support for Fine-Grained Latency Measurements

Router Support for Fine-Grained Latency Measurements Abstract: Datacenter network applications, including automated trading and high-performance computing, have stringent end-to-end latency requirements where even microsecond variations may be intolerable. The resulting fine-grained measurement demands cannot be met effectively by existing technologies, such as SNMP, NetFlow, or active probing. Instrumenting routers with a hash-based primitive that we […]