The use of multiple vendor technologies and an exponential rise in network elements creates new challenges in gaining end-to-end visibility of performance and availability for 4G LTEⁱ and IMS networks and services. In this whiteboard video, SevOne's Senior Systems Engineer, Matt Goldberg, explains 4G LTE and IMS and the KPIs you should monitor across all of the components in the data path including: eNodeBⁱ, PGW, SGW, MMEⁱ, PCRFⁱ, CSCF, HSS, and IMS.