What is the primary purpose of a vSphere Distributed Switch (vDS)?

What is the primary purpose of a vSphere Distributed Switch (vDS)?

• A. Centralized management for storage
• B. Network traffic management across hosts
• C. Clustering of ESXi hosts
• D. Provisioning of VMs

Answer: (B)

The main idea is that a vSphere Distributed Switch provides centralized, consistent network management across multiple ESXi hosts. It lets you define distributed port groups and apply common networking policies (like NIC teaming, failover order, security, and traffic shaping) once, and have those settings automatically apply to all hosts in the cluster. This makes network behavior uniform for virtual machines no matter which host they reside on, simplifies administration, and reduces misconfigurations when VMs move between hosts. This isn’t about storage management, which would involve storage protocols and storage provisioning, nor about clustering hosts together for resources or high availability, and it isn’t about creating VMs. The focus here is on how traffic is carried and controlled across the network across multiple hosts.

The main idea is that a vSphere Distributed Switch provides centralized, consistent network management across multiple ESXi hosts. It lets you define distributed port groups and apply common networking policies (like NIC teaming, failover order, security, and traffic shaping) once, and have those settings automatically apply to all hosts in the cluster. This makes network behavior uniform for virtual machines no matter which host they reside on, simplifies administration, and reduces misconfigurations when VMs move between hosts.

This isn’t about storage management, which would involve storage protocols and storage provisioning, nor about clustering hosts together for resources or high availability, and it isn’t about creating VMs. The focus here is on how traffic is carried and controlled across the network across multiple hosts.