| Overview |
| ---------------- |
| |
| Aether is an open source 5G edge cloud connectivity service that |
| supports enterprise deployments of Private 5G. Aether's architecture |
| is described in a companion book; this guide references sections of |
| that book to fill in details about Aether's design. |
| |
| .. _reading_private5g: |
| .. admonition:: Further Reading |
| |
| L. Peterson, O. Sunay, and B. Davie. `Private 5G: A Systems |
| Approach <https://5g.systemsapproach.org>`__. 2023. |
| |
| Source code for all the individual components that comprise Aether |
| (e.g., AMP, SD-Core, SD-RAN, SD-Fabric) can be downloaded, and |
| deployment artifacts built from that source code (e.g., Docker Images, |
| Helm Charts, Fleet Bundles, Terraform Templates, Ansible Playbooks) |
| can be used to bring up a running instance of Aether on local |
| hardware. (See the *Source Directory* section of this guide for |
| information about where to find the relevant repositories.) |
| |
| A multi-site deployment of Aether has been running since 2020 in |
| support of the *Pronto Project*, but that deployment depends on an ops |
| team with significant insider knowledge about Aether's engineering |
| details. It is difficult for others to reproduce that know-how and |
| bring up their own Aether clusters. Aether is also available as two |
| self-contained software packages that were originally designed to |
| support developers working on individual components. These packages |
| are straightforward to install and run, even in a VM on your laptop, |
| so they also provide an easy way to get started: |
| |
| * `Aether-in-a-Box (AiaB) |
| <https://docs.aetherproject.org/master/developer/aiab.html>`__: |
| Includes SD-Core and the online aspects of AMP (Service |
| Orchestrator and the Monitoring Subsystem). AiaB can be configured |
| to work with either an emulated RAN or physical small cell radios |
| (both 4G and 5G). |
| |
| * `SDRAN-in-a-Box (RiaB) |
| <https://docs.sd-ran.org/master/sdran-in-a-box/README.html>`__: |
| Includes the ONOS-based nRT-RIC, the O-RAN defined E2SM-KPI and |
| E2SM-RC Service Models, and example xApps. RiaB can be configured to |
| work with either an emulated RAN (5G) or with OAI's open source RAN stack |
| running on USRP devices (4G). |
| |
| Note that these two packages do not include SD-Fabric, which depends |
| on programmable switching hardware. Readers interested in learning |
| more about that capability (including a P4-based UPF) should see the |
| Hands-on Programming appendix of our companion SDN book. |
| |
| .. _reading_pronto: |
| .. admonition:: Further Reading |
| |
| `Pronto Project: Building Secure Networks Through Verifiable |
| Closed-Loop Control <https://prontoproject.org/>`__. |
| |
| `Hands-on Programming (Appendix). Software-Defined Networks: A |
| Systems Approach |
| <https://sdn.systemsapproach.org/exercises.html>`__. November 2021. |
| |
| As a tool targeted at developers, AiaB and RiaB support a streamlined |
| modify-build-test loop, but a significant gap remains between these |
| self-contained versions of Aether and an operational 5G-enabled edge |
| cloud deployed into a particular target environment. `Aether OnRamp |
| <https://github.com/opennetworkinglab/aether-onramp>`__ is a |
| re-packaging of Aether to address that gap. It provides an incremental |
| path for users to: |
| |
| * Learn about all the moving parts in Aether. |
| * Customize Aether for different target environments. |
| * Deploy and operate Aether with live traffic. |
| |
| Aether OnRamp begins with a *Quick Start* deployment similar to AiaB, |
| but then goes on to prescribe a sequence of steps a user can follow to |
| deploy increasingly complex configurations. This culminates in an |
| operational Aether cluster capable of running 24/7 and supporting live |
| 5G workloads. |
| |
| Note that OnRamp includes support for bringing up a 4G version of |
| Aether connected to one or more physical eNBs, but we postpone a |
| discussion of that capability until the final section. Everything up |
| to that point assumes 5G. |
| |
| Aether OnRamp is still a work in progress, but anyone |
| interested in participating in that effort is encouraged to join the |
| discussion on Slack in the `ONF Community Workspace |
| <https://onf-community.slack.com/>`__. A roadmap for the work that |
| needs to be done can be found in the `Aether OnRamp Wiki |
| <https://github.com/opennetworkinglab/aether-onramp/wiki>`__. |
| |