Resources, Services and APIs

Everything that Experimenters can interact with is referred to as a Resource

To run an experiment, you will configure the resources that you need.

This includes:

• Compute
  • capable of having disk images loaded and saved
  • users can log into them with ssh after provisioning
• Software Defined Radios
  • FPGA images loaded with UHD
  • Radio paramaters controlled with UHD or other API
• RF Frontends
  • api to control switches, filters, and gain
• Network switches
  • connectivity defined with API
• Optical Devices
  • space switch, roadms, and other devices controlled with optical config service

Note, some resources will fall into more than one of the above categories, such as a compute machine with integrated SDR, like the USRP 2974

RF Control

A number of services is availabe for experimenters to manage various aspects of domains and resources. These include:

• RF Switch management service: service for management of RF switches in various sandbox nodes.
• Node RF control service: management of the RF front-end in large and medium outdoor nodes.
• XY Table service: controls the movable XY & angle platorms in Sandbox 1.

SDR Control

• USRP 2974 Driver Installation and Access
• USRP N310 Configuration and Access
• Node Serial Console

Compute Control

• Disk Images
• OS Latency Tuning

Network Control

Optical Control

Resources

REFERENCE: J. Yu, C. Gutterman, A. Minakhmetov, M. Sherman, T. Chen, S. Zhu, G. Zussman, I. Seskar, and D. Kilper, “Dual use SDN controller for management and experimentation in a field deployed testbed,” in Proc. OSA OFC’20, T3J.3, 2020.

CONTACT: Jiakai Yu

More details in the attached slides.

SDN controller architecture

SDN controller core functionalities:

Transmission setup

COSMOS optical topology overview:

One of the default COSMOS Transmission setups is the ring network:

User JSON format request examples

Add a light-path through multiple ROADMs with RWA

{"Request_Class": "addPathConnection", “direction": "bi-direction", "source_node_ip": "1.1.1.1", "source_node_port": "1", "destination_node_ip": "1.1.1.2", "destination_node_port": "1", "connection_name": "cosmos", "connection_id": “1", "channel_id": "50"}

Monitor WSS connection information of a ROADM

{"Request_Class": "MonitorWSS", "node_ip": "1.1.1.1"}

Configure a single ROADM WSS connection

{"Request_Class": "ConfigWSS", "node_ip": "1.1.1.1", "name": "cosmos", "module_id": "2", "connection_id": "1", ’ "input_port": "5101", "output_port": "5203", "start_freq": "194600.00", "end_freq": "194650.00", "attenuation": "4.0", "status": "in-service", "block": "false"}

Set up cross-connections in Calient S320

{"Request_Class": "SetupCRS", "crs": ["5.7.6>5.8.5","5.7.7>5.8.6"]}

Page Map

• • USRP-2974 (Krypton) driver install and usage
  • Description
  • Installation / Starting of PCIe driver
  • Trouble shooting
• • Latency tuning guidelines
  • Monitoring tools
  • Results
• • N310 configuration and access
• • Node Serial Console
  • Example
  • Exit the Serial Console
• • Service: mmWave Array Management
• • RF Control
  • Usage
  • Get the current configuration
  • Turn off power amplifiers
  • Configure the TX chain
• • Service: RF Switch
  • Usage
  • Get the current configuration
  • Configure the RF switch
• • Service: XY Table
  • Usage
  • Get the Current Status & Positions
  • Move XY Table Platform
  • Stop the Current Movement