Default Vlan Mapping Configuration; Mapping Customer Vlans To Service-Provider Vlans - Cisco Catalyst 3750 Software Configuration Manual

Configuring VLAN Mapping
This section includes this configuration information:
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Default VLAN Mapping Configuration

By default, no VLAN mapping is configured.

Mapping Customer VLANs to Service-Provider VLANs

Figure 13-4
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 an ES on each side of the service-provider network. See the example following the
configuration steps.
Figure 13-4 Example of VLAN Mapping
Host
Host
Catalyst 3750 Metro Switch Software Configuration Guide
13-8
Default VLAN Mapping Configuration, page 13-8
Mapping Customer VLANs to Service-Provider VLANs, page 13-8
Mapping Customer 802.1Q Traffic with VLAN IDs, page 13-9
shows a topology where a customer uses the same VLANs in multiple sites at different sides
Customer A
VLANs 1-5
Customer
switches
Customer A
Access, ISL,
VLANs 1-5
or 802.1Q trunk
Chapter 13 Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling
Service provider
Catalyst 3750 Catalyst 3750
Metro switch A Metro switch A
Catalyst
6500
VLAN mapping at
enhanced services ports
Customer A
VLANs 1-5
Catalyst 3750 Catalyst 3750
Metro switch B Metro switch B
Customer
switch
Access, ISL,
or 802.1Q trunk
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