Vlan Stacking; Overview; Important Points To Remember - Dell Force10 MXL Blade Reference Manual

VLAN Stacking

Overview

With the virtual local area network (VLAN)-stacking feature (also called stackable VLANs and QinQ),
you can "stack" VLANs into one tunnel and switch them through the network transparently.
The VLAN stacking commands described in this chapter are:
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For information about basic VLAN commands, refer to
2 chapter.

Important Points to Remember

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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
If the spanning tree protocol (STP) is not enabled across the stackable VLAN network, STP bridge
protocol data units (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 you enable the tunneling
protocol.
Layer 3 protocols are not supported on a stackable VLAN network.
Assigning an IP address to a stackable VLAN is supported when all the members are only
stackable VLAN trunk ports. IP addresses on a stackable VLAN-enabled VLAN is not supported
if the VLAN contains stackable VLAN access ports. This facility is provided for the simple
network management protocol (SNMP) over a stackable VLAN-enabled VLAN containing only
stackable VLAN trunk interfaces. Layer 3 routing protocols on such a VLAN are not supported.
Virtual LAN (VLAN) Commands
37
in the Layer
VLAN Stacking | 655