Figure 1 shows the logical topology of COSMOS cloud architecture overlayed on its optical topology (with aggregated link capacities indicated). All of the fully-user-controllable ToR (Ethernet) switches (managind both data networks) support both traditional and SDN programmability at L2/L3 (Ethernet/IP). The open-source open network operating system (ONOS) platform and most of the standard SDN controllers can be used for SDN and NFV experimentation.

Figure 1: Logical topology of COSMOS main domain

Ethernet Switches

Ethernet Cables

  • Used for 1G connectivity with a rack or data-room.
  • Various vendors: Dell, Monoprice, Belden, etc.
  • Standardized on cat6+ for futureproofing

Direct Attach Cables

Used to connect devices within a Rack, for cost efficiency

Purchased from Dell and FiberStore

Lengths up to 7 meters in use, but most common are 1,2,3,5 meters. Part Numbers:

10G Length
Vendor 1m 2m 3m 5m
25G Length
Vendor 1m 2m 3m 5m
40G Length
Vendor 1m 2m 3m 5m
100G Length
Vendor 1m 2m 3m 5m

Singlemode Optics

  • 10G-lr
  • 40G-lr4
  • 100g-lr

Multimode Optics

  • Not used in the NYC deployment.
  • 10G-SR is used in the COSMOS SB1 Deployment at Rutgers
Last modified 4 years ago Last modified on May 18, 2020, 2:22:50 PM

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