Switch latency reference
Arista 7150S Latency by Model
The Latency Lens catalog lists 350 ns (0.35 µs) for the Arista 7150S-24S(C) and 380 ns (0.38 µs) for the 7150S-64/52S(C). These are switch estimates from the linked Arista datasheet, not measurements of a particular installed network.
Arista 7150S latency comparison
| Model | Latency (ns) | Latency (µs) | Manufacturer source |
|---|---|---|---|
| 7150S-24S(C) | 350 | 0.35 | Arista 7150S datasheet |
| 7150S-64/52S(C) | 380 | 0.38 | Arista 7150S datasheet |
What does the 350–380 ns figure include?
It represents the catalog’s estimate for one pass through the switch. It does not include cable propagation, transceivers, a second device or the return path. The two values refer to different 7150S model entries; they are not a measured range for a single switch.
Use the Arista 7150S datasheet to check the specification and its test conditions for your configuration. Packet size, forwarding mode and queuing can affect observed latency. Measure the actual network when a design depends on a few hundred nanoseconds.
Compare other switches
See the switch latency comparison table for Arista, Cisco and Juniper models alongside Fortinet firewall estimates. To add switches, fiber and other components along a route, use the network latency calculator.