Dell Force10 TeraScale E Series - VLAN Stacking; Overview; Commands; Important Points to Remember

VLAN Stacking | 1455
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VLAN Stacking
Overview
With the VLAN-Stacking feature (also called Stackable VLANs and QinQ), available on all Dell
Force10 platforms (C-Series c, E-Series e, and S-Series s) that are supported by this version of
FTOS, you can “stack” VLANs into one tunnel and switch them through the network transparently.
VLAN Stacking is supported on E-Series ExaScale e
x
with FTOS 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 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 on the E-Series, see Chapter 52, Service Provider Bridging.
• Layer 3 protocols are not supported on a Stackable VLAN network.