Session-aware load balancerOur Net-Net Session-aware Load Balancer (SLB) enables linear, non-disruptive SBC capacity scaling to two million subscribers from a single SIP IP address. It supports the delivery of any SIP service or application—voice, video, presence, messaging and multimedia; over any access network, including the Internet. The Net-Net SLB is deployed with our Net-Net Session Director SBCs to create a Net-Net Cluster. The Net-Net Cluster is comprised of two-or-more Net-Net SBCs front-ended by the Net-Net SLB for SIP signaling. The Net-Net SLB is a high-performance layer 5-7 aware load balancer optimized for Acme Packet Clustering. It provides dynamic, adaptive load balancing of subscribers based on SBC availability and health score; and subscriber capacity, load and session state. Like all Net-Net solutions, the Net-Net SLB features carrier-class high-availability to ensure no loss of active sessions in the event of single system failures. Deployed as 1:1 active-standby units, the SLBs checkpoint configuration and cluster state. The Net-Net Cluster scales subscriber capacity without requiring architectural forklifts or network disruptions. Since all elements of the cluster are SIP subscriber and session-aware, it provides a superior solution in terms of scalability, dynamic adaptive load balancing, redundancy and management compared to traditional layer 3/layer 5 web load balancers and SIP redirect servers. 
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