5G Core: From Monoliths to Cloud Native / From Diameter & GTP to HTTP2 & JSON

[alternatively 3 full days OR 5 x 1/2 day course, Euro 3,450.- (net) per participant]

Training Course Description

This course addresses the needs of technical engineering staff who require a detailed understanding of the 5G core network, built inside Kubernetes (K8s) cluster using containers and cloud-native networking to host micro-services.
This course has been designed to meet the requirements of both: engineering experts to design and test such micro-services inside K8s and operations staff to operate and maintain a container-based 5G core network.
The course starts out with a wrap-up of general 5G-topics like a short overview of NSA vs SA, the future of RAN and QoS in 5G.
The whole next chapter is dedicated to the detailed definition of the various new network functions inside the 5G core, e.g. AMF, SMF, UPF, NRF, SEPP, to name a few.
In that respect, it is our target to make the students understand how these network functions are physically realized as micro-services inside a cloud-based environment.
Of course, we also explain in detail the HTTP/2- and JSON-based communication among these network functions in a service based architecture (SBA).
In the following chapter we highlight the differences between HW-virtualization and VM’s on one hand and OS-virtualization and containers on the other hand.
Focus in this chapter is on hands-on and life creation and setup of images and containers and their use for different purposes (e.g. Apache web server).
Chapter 4 is dedicated to container orchestration through Kubernetes and the various specifics of Kubernetes.
That relates in particular to the thorough analysis of the Kubernetes cluster architecture, namely the worker node(s), pods and the master node.
Another focus is on the operation of micro-services inside a Kubernetes cluster, namely load balancing, IP-addressing and networking among pods and containers.
Much effort is again spent on practical exercises with real-life use of a running Kubernetes cluster in our network.
The following two chapters 5 and 6 are dedicated to the new 5G signaling procedures with focus on core network.
Most important: These two chapters are complementing each other with chapter 5 depicting the theory part according to the standard and chapter 6 providing the peer hands-on logfiles.
This provides students with real-life exposure to the meaning of parameters and messages in 5G.
Chapter 6 is also referred to frequently earlier in the course to emphasize the interaction among micro-services in the 5GC.

Some of your questions that will be answered

How are network elements and network functions broken down into micro-services?
Why does the 5GC require the use of HTTP/2 and JSON for the communication among the micro-services / network functions?
What is HTTP/3 and does it currently play any role in the context of 5G?
What is the meaning of PRINS and OAUTH2.0 and how does it enable secure communication among 5G core networks in case of roaming?
Which network function in the 5GC is responsible for which tasks?
How is the 5GC physically realized in a Kubernetes environment?
Which constraints apply for the size of Kubernetes cluster in terms of No of pods, nodes etc.?
Why does 3GPP endorse new authentication options like EAP-TLS?
How does a UE register to the 5GC and which network functions are involved?
How does a UE obtain its IP-address(es) from the network and which network functions are involved?
How does Inter-RAT mobility work between LTE and NR, esp. with N26-interface deployed?
What are the differences and specifics of HW- and OS-virtualization? What are the differences and specifics of containers and virtual machines?
How precisely does mobile edge computing work and which requirements does it impose on the 5GC?
What happens if the UE needs to register to a specific network slice?
Why does 3GPP introduce the 5G-AKA authentication procedure and what are differences compared to EPS-AKA?
How can we trace the signaling among different containers in a cloud?
How does Kubernetes achieve load balancing among different pods?

Pre-Requisites

The students need to have basic understanding of 5G but good understanding of the EPC.
Practical experience with LINUX CLI is beneficial as we perform quite a few life exercises.

Training Course Target

The students will gain thorough understanding of the 5GC network functions and how they are realized as micro-services.
Through our deep dive into container and Kubernetes practice the students can put their hands in the mud and gain practical experience with cloud-native operation.
Finally, the students will understand the signaling flows when UE, NR-RAN and 5GC interact with each other in various different scenarios.

Training Course Duration

alternatively 3 full days OR 5 x 1/2 day course

v1.000

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