| 12 | |
| 13 | === User facing network architecture === |
| 14 | [[Image(COSMOS_logical_net.png, 900px, align=right)]] |
| 15 | |
| 16 | All radio devices and servers are connected to the control and data logical networks, described above. |
| 17 | The data network is further connected to the optical underlay. By making requests to the appropriate service, users can configure logical connections to use a particular path across both ethernet switches and and the underlying optical fabric. |
| 18 | |
| 19 | ==== Locality within the network ==== |
| 20 | While all devices within the network may be connected, there are bandwidth and latency considerations. |
| 21 | For convenience, devices within the same physical location / topology have matching suffixes. |
| 22 | For example, sdr1-s1-lg1 and sdr2-s1-lg1 share the same next hop switches for their data planes, as do srv1-lg1 and srv2-lg1. |
| 23 | |
| 24 | Explanation of suffixes is at [wiki:naming names of things] |
| 25 | |