Dell 3548 manual Vlan Supported Features, Spanning Tree Protocol Features

VLAN Supported Features

VLAN Support

VLANs are collections of switching ports that comprise a single broadcast domain. Packets are classified as belonging to a VLAN based on either the VLAN tag or based on a combination of the ingress port and packet contents. Packets sharing common attributes can be grouped in the same VLAN.

For more information, see "Configuring VLANs."

Port Based Virtual LANs (VLANs)

Port-based VLANs classify incoming packets to VLANs based on their ingress port.

For more information, see "Defining VLAN Ports Settings."

Full 802.1Q VLAN Tagging Compliance

IEEE 802.1Q defines an architecture for virtual bridged LANs, the services provided in VLANs, and the protocols and algorithms involved in the provision of these services.

GVRP Support

GARP VLAN Registration Protocol (GVRP) provides IEEE 802.1Q-compliant VLAN pruning and dynamic VLAN creation on 802.1Q trunk ports. When GVRP is enabled, the device registers and propagates VLAN membership on all ports that are part of the active underlying "Spanning Tree Protocol Features" on page 21 topology.

For more information, see "Configuring GVRP Parameters."

Private VLAN Edge

Ports can be assigned to Private VLAN Edge (PVE) groups. A port defined as PVE is protected by an uplink, so that it is isolated from other ports within the same VLAN. The uplink must be a GE port.

For more information on Private VLANs, see "Configuring Ports" on page 297.

Spanning Tree Protocol Features

Spanning Tree Protocol (STP)

802.1d Spanning tree is a standard Layer 2 switch requirement that allows bridges to automatically prevent and resolve L2 forwarding loops. Switches exchange configuration messages using specifically formatted frames and selectively enable and disable forwarding on ports.

For more information, see "Configuring the Spanning Tree Protocol."

Introduction

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