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Systems & Data Center · Foundational

Port Group

A template on a vSphere virtual switch that defines VLAN, security, teaming and traffic-shaping settings for connected VM NICs.

Definition

VMs connect to port groups rather than directly to switches. VLAN ID 4095 on a standard switch port group (or VLAN trunking on a VDS) passes tagged traffic to the guest.

Example

A port group named Web-VLAN20 tags all VM traffic with VLAN 20.

Exam tip

Security settings (promiscuous mode, MAC address changes, forged transmits) are set per port group.

Related terms