Arista 7130S Connect Series

The Arista 7130S Connect Series occupies the Layer 1 tier of the switching stack, where the primary engineering constraint is not throughput in the traditional sense but latency in the sub-microsecond range specifically nanoseconds. These switches forward data between ports in 4 nanoseconds with complete signal recovery, meaning the electrical signal is regenerated at each port rather than simply amplified or passed through. Signal regeneration removes accumulated noise and jitter that would otherwise degrade link quality over multi-hop paths, allowing the 7130S to be inserted into trading infrastructure where signal integrity across many hops is as important as raw forwarding speed. Three hardware configurations 16, 48, and 96 SFP+ ports address different deployment scales from compact co-location installations to larger fabric deployments.

Because the 7130S operates at Layer 1, there is no packet buffering, no queue management, and no store-and-forward processing traffic is forwarded as a continuous bitstream between source and destination ports. This eliminates the variable latency introduced by buffer occupancy that affects Layer 2 and Layer 3 switches when congestion causes packets to wait in output queues. The packet-aware management layer adds capabilities beyond simple optical patching: packet replication allows a single input stream to be mirrored to multiple destinations simultaneously for monitoring and analytics, while signal quality monitoring with eye diagram visualisation allows operators to detect degrading optical links before they drop catching a fibre connector that is beginning to fail as attenuated signal levels rather than as a link-down event that disrupts trading operations.