ProSafe 7000 Managed Switch Software Administration Manual, Release 8.0.3
21-1
Double VLANs
v1.0, June 2010
Chapter
21
Double VLANs
This section describes how to configure the Double VLAN (DVLAN) feature on the switch. A DVLAN is a
way to pass traffic of customers who have multiple VLANs from one customer domain to another customer
domain. Custom VLAN IDs are preserved and a provider service VLAN ID is added to the traffic so that the
traffic can pass the metro core in a simple and cost-effective manner.
Double VLANs:
•
Pass customer traffic from one customer domain to another through the metro core
•
Select customer ports and a service provider port
In the following example, the two switches have the same configuration.
Internet
Port 1/0/48
Port 1/0/48
Layer 2 Switch
Layer 2 Switch
Port 1/0/24
Port 1/0/24
Customer
Domain
Customer
Domain
Figure
21-1