L3 Top of Rack (ToR) Layer
Switches at this layer connect the Cboe Futures and Options on Futures order gateways and market data feed servers. Hosts are connected to both a primary and secondary switch for redundancy using NIC teaming (Active/Passive). Uplinks between layers are all 4x25G port-channel using the vendor default hashing algorithm.
| DC Location | Quantity | Bandwidth | Make | Model | Switching Mode |
|---|---|---|---|---|---|
| NY5 | 8 | 2x10G Active/Passive Server Bonds | Arista | DCS-7050SX3-48YC8 | Cut-Through* |
*Switching mode is effectively store-and-forward one way due to speed change 10G to 25G.