Mapping Customer Vlans To Service-Provider Vlans - Cisco Catalyst 4500 series Administration Manual

Chapter 29 Configuring 802.1Q Tunneling, VLAN Mapping, and Layer 2 Protocol Tunneling

Mapping Customer VLANs to Service-Provider VLANs

Figure 29-5
of a service-provider network. You map the customer VLAN IDs to service-provider VLAN IDs for
packet travel across the service-provider backbone. The customer VLAN IDs are retrieved at the other
side of the service-provider backbone for use in the other customer site. Configure the same set of VLAN
mappings at a customer-connected port on each side of the service-provider network.
The examples following the configuration steps illustrate how to use one-to-one mapping, traditional
QinQ, or selective QinQ to map customer VLANs 1 to 5 to service-provider VLANs.
Figure 29-5
Host
Host
Configuring VLAN Mapping
•
•
•
Default VLAN Mapping Configuration
By default, no VLAN mapping is configured.
OL_28731-01
shows a topology where a customer uses the same VLANs in multiple sites on different sides
Mapping Customer VLANs
Customer A
VLANs 1-5
Customer
switches
Customer A
Trunk port
VLANs 1-5
Default VLAN Mapping Configuration, page 29-9
VLAN Mapping Configuration Guidelines, page 29-10
Configuring VLAN Mapping, page 29-11
VLAN mapping at
customer-connecting ports
Service provider
Switch A
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
Configuring VLAN Mapping
Customer A
VLANs 1-5
Switch B
Customer
switch
Trunk port
29-9