Deployment Guide

VLAN Stacking | 1491

VLAN Stacking

Overview

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

Networking platforms (C-Series c, E-Series e, and S-Series s) that are supported by this version

of Dell Networking OS, you can “stack” VLANs into one tunnel and switch them through the network

transparently.

VLAN Stacking is supported on E-Series ExaScale

with Dell Networking OS 8.2.1.0. and later.

Commands

The commands included are:

• dei enable

• dei honor

• dei mark

• member

• show interface dei-honor

• show interface dei-mark

• 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

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 on the E-Series, see Chapter 52, Service Provider Bridging.

• Layer 3 protocols are not supported on a Stackable VLAN network.