OLT2406 User’s Guide
191
C
HAPTER
24
VLAN Stacking
This chapter shows you how to configure VLAN stacking on your OLT. See the chapter on VLANs for more
background information on Virtual LAN
See
for tutorials on how to use VLAN stacking on PON ports.
24.1 VLAN Stacking Overview
A service provider can use VLAN stacking to allow it to distinguish multiple customers VLANs, even those
with the same (customer-assigned) VLAN ID, within its network.
Use VLAN stacking to add an outer VLAN tag to the inner IEEE 802.1Q tagged frames that enter the
network. By tagging the tagged frames (“double-tagged” frames), the service provider can manage
up to 4,094 VLAN groups with each group containing up to 4,094 customer VLANs. This allows a service
provider to provide different service, based on specific VLANs, for many different customers.
A service provider’s customers may require a range of VLANs to handle multiple applications. A service
provider’s customers can assign their own inner VLAN tags on ports for these applications. The service
provider can assign an outer VLAN tag for each customer. Therefore, there is no VLAN tag overlap
among customers, so traffic from different customers is kept separate.
24.1.1 VLAN Stacking Example
In the following example figure, both
A
and
B
are Service Provider’s Network (SPN) customers with VPN
tunnels between their head offices and branch offices respectively. Both have an identical VLAN tag for
their VLAN group. The service provider can separate these two VLANs within its network by adding tag
37 to distinguish customer
A
and tag 48 to distinguish customer
B
at edge device
1
and then stripping
those tags at edge device
2
as the data frames leave the network.
Summary of Contents for OLT2406
Page 4: ...Document Conventions OLT2406 User s Guide 4 Desktop Laptop Switch IP Phone Smart T V...
Page 32: ...Table of Contents OLT2406 User s Guide 32 Index 758...
Page 33: ...33 PART I Introduction and Hardware Installation...
Page 63: ...63 PART II Web Configurator...
Page 179: ...Chapter 21 Classifier OLT2406 User s Guide 179 Figure 112 Classifier Example...
Page 182: ...Chapter 22 Policy Rule OLT2406 User s Guide 182 Figure 113 Advanced Application Policy Rule...
Page 186: ...Chapter 22 Policy Rule OLT2406 User s Guide 186 Figure 114 Policy Example...
Page 248: ...Chapter 28 Loop Guard OLT2406 User s Guide 248 Figure 151 Advanced Application Loop Guard...
Page 393: ...393 PART III CLI Commands...
Page 581: ...Chapter 78 VoIP OLT2406 User s Guide 581...
Page 725: ...725 PART IV Troubleshooting Specifications Appendices and Index...
