1 Gi-LAN (SGi-LAN) includes service enablers, which reside in the carrier's network beyond the Gi (SGi) termination point. Typical examples: firewalls, DPI, video optimization, TCP optimization, HTTP header enrichment, NAT, load balancers, caching, etc. 6.5 Operations, Administration, and Management Consumer of the NSI and NF Management services (Management application) NSI information model RAN NSSI information model RAN NSSMF Core NSSMF TN NSSMF RAN NF information model RAN NFMF Core NFMF TN Manager RAN NF information model RAN NFs Core NFs TN elements Figure 6.5.5 An example of deployment scenario for management of a mobile network with slicing. its NG-RAN nodes shared between all NSSIs supported in the area. An NSSI may be shared by two or more NSIs or NSSIs. An NSI (NSSI) that is not shared is sometimes referred to as "dedicated." A slice consists of not only logical components, but also physical resources used by the NSSI. In the case of a shared NF (between NSSIs), the corresponding resources (physical or virtual) are split between the NSSIs. In particular for NG-RAN, it means a split of radio resources between the NSSIs; see example of "RRM policy" below. The NSSI information for transport networks also includes a set of links (connecting NFs) with their bandwidth and latency properties. In a typical scenario (see Figure 6.5.5, which illustrates an example of slicing manage- ment), an NSI is composed of one RAN NSSI and one core NSSI. This deployment scenario includes: Network Slice Management Functions (NSMFs), which provide for LCM of the NSIs; Network Slice Subnet Management Functions (NSSMFs), which provide for LCM of the NSSIs, such as RAN NSSI, CN NSSI, and TN NSSI; Network Function Management Functions (NFMFs), which expose the management ser- vices originally provided by the NFs. Figure 6.5.6 also shows the consumer of the NSI and NF management services, which can be any management application, such as, for example, SON. The consumer may connect to the NFs directly, which is necessary in the case 