provides 5G network functions as well as interworking with legacy 3G, 4G, Fixed/Wi-Fi functions. To provide a secure interconnection between 5G networks, can offer a Security Edge Protection Proxy or SEPP. The SEPP ensures end-to-end confidentiality and integrity between the source and destination network for all 5G interconnect roaming messages.
The Next Generation Core (NGC) of the 5G Service Based Architecture is build on HTTP/2 signaling. In such a design it is mandatory to offer services, connectivity and security when it is required. One single signaling bus will be used for all signaling services, meaning that message prioritization, throttling, overload protection and routing should be done by one entity.
The Security Edge Protection Proxy (SEPP) is the network element in the 5G Next Generation Core that will be handling all of those functions. In an ideal world, this entity should be an add-on to the existing DRA and/or STP which runs virtualized in your datacenter.
Preparing for convergence
Convergence requires products that work across different domains, networks, technologies, vendors and services. These products should support interworking and gradual migration/transition to 5G. This applies to investments in new 5G network functions as well as legacy product replacements (e.g. STP, DRA).
is the vendor of choice for next generation signaling products and network applications, designed to support service providers targeting convergence across legacy and next generation networks. This creates the landscape by which the new 5G network will thrive without becoming another technology silo.
Security Edge Protection Proxy
The SEPP is in a unique position to help operators understand and resolve challenges.
HTTP/2 traffic management in the SBA
Network function degradation and failures
Interoperability EPS/5GS & Diameter/HTTP
Control of congestion and overload
Limit outage during upgrades and maintenance