Deployment Guide

11 VxRail Networking Guide with Dell EMC S4148-ON Switches | version 1.0
2 Network topologies
A VxRail deployment can be deployed using a single-switch or with a dual-switch configuration. The single-
switch provides the lowest cost option but creates a single point of failure. Dell EMC recommends two
switches, as they provide redundancy for high availability. The following explains the difference between
single-switch and dual-switch topologies and shows upstream switches to highlight solution examples.
2.1.1 Single-switch topology
In the single-switch topology, all nodes connect to a single switch using their network ports. This topology has
the advantage of lower cost, but does not protect against a switch failure. Network redundancy establishes
only at the link level.
Example of a single-switch topology