Reference Guide

VLAN Stacking | 937

VLAN Stacking

Overview

With the VLAN-Stacking feature (also called Stackable VLANs and QinQ), available on all Dell

Networking that are supported by this version of FTOS, you can “stack” VLANs into one tunnel and

switch them through the network transparently.

The symbols

s z under command headings indicate which Dell Networking — , S-Series,

or Z-Series, respectively — support the command.

Commands

The commands included are:

• dei enable

• dei honor

• dei mark

• member

• show interface dei-honor

• show interface dei-mark

• stack-unit stack-group

• vlan-stack access

• vlan-stack compatible

• vlan-stack dot1p-mapping

• vlan-stack protocol-type

• vlan-stack trunk

For information on basic VLAN commands, see Virtual LAN (VLAN) Commands in the chapter

Layer 2.

Important Points to Remember

• If Spanning Tree Protocol (STP) is not enabled across the Stackable VLAN network, STP BPDUs

from the customer’s networks are tunneled across the Stackable VLAN network.

• If STP is enabled across the Stackable VLAN network, STP BPDUs from the customer’s networks

are consumed and not tunneled across the Stackable VLAN network unless protocol tunneling is

enabled.

Note: For details on protocol tunneling, see Chapter 40, Service Provider Bridging.

S6000