| Ankur Upadhyaya | 4f0e3b0 | 2022-10-06 11:15:39 -0600 | [diff] [blame] | 1 | .. |
| 2 | SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org> |
| 3 | SPDX-License-Identifier: Apache-2.0 |
| 4 | |
| 5 | .. _design_amf: |
| 6 | |
| 7 | AMF Design Overview |
| 8 | =================== |
| Vijaya Tiruveedula | dc2efbc | 2022-10-11 19:18:52 +0530 | [diff] [blame] | 9 | To make AMF cloud native application enhanced the existing design of AMF. Introduced a new service |
| 10 | called SctpLb (SctpLoadbalancer) which receives ngap messages and distribute to Amf Instances. Also |
| 11 | added DB support to Store UE Context. On successful completion of each procedure UE Context |
| 12 | create/update/delete in MongoDB. AMF is tested with simulated gNB/UEs (gnbsim) for its stability. |
| Ankur Upadhyaya | 4f0e3b0 | 2022-10-06 11:15:39 -0600 | [diff] [blame] | 13 | |
| 14 | .. image:: ../_static/images/CN-AMF.png |
| 15 | :width: 500px |
| 16 | |
| 17 | SctpLb (SctpLoadbalancer) |
| 18 | ------------------------- |
| 19 | |
| 20 | * Accept and manage gnb or sctp connections |
| 21 | |
| 22 | * GRPC communication between SctpLb and Amf Service |
| 23 | |
| 24 | * Handles Amf Instance Down/Up Notifications |
| 25 | |
| 26 | * Backend NF manages AMF instances |
| 27 | |
| 28 | * Round-Robin Distribution of Sctp Messages over grpc channel to Backend NF |
| 29 | |
| Vijaya Tiruveedula | dc2efbc | 2022-10-11 19:18:52 +0530 | [diff] [blame] | 30 | * Redirect Support for forwarding Sctp Messages to a particular Amf Instance |