Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 1015

• This limitation becomes relevant if you enable the port as a multi-purpose port (carrying single-tagged and double-tagged traffic). • When the LP ports are present in RPM 10 and 11, VLAN stacking is supported. • VLAN stacking is supported on C9010 ports but not on peGigE ports. Configure VLAN Stacking Configuring VLAN-Stacking is a three-step process. 1 Creating Access and Trunk Ports 2 Assign access and trunk ports to a VLAN (Creating Access and Trunk Ports). 3 Enabling VLAN-Stacking for a VLAN. Related Configuration Tasks • Configuring the Protocol Type Value for the Outer VLAN Tag • Configuring Options for Trunk Ports • Debugging VLAN Stacking • VLAN Stacking in Multi-Vendor Networks Creating Access and Trunk Ports To create access and trunk ports, use the following commands. • Access port - a port on the service provider edge that directly connects to the customer. An access port may belong to only one service provider VLAN. • Trunk port - a port on a service provider bridge that connects to another service provider bridge and is a member of multiple service provider VLANs. Physical ports and port-channels can be access or trunk ports. 1 Assign the role of access port to a Layer 2 port on a provider bridge that is connected to a customer. INTERFACE mode vlan-stack access 2 Assign the role of trunk port to a Layer 2 port on a provider bridge that is connected to another provider bridge. INTERFACE mode vlan-stack trunk 3 Assign all access ports and trunk ports to service provider VLANs. INTERFACE VLAN mode member Example of Displaying the VLAN-Stack Configuration for a Switchport To display the VLAN-Stacking configuration for a switchport, use the show config command from INTERFACE mode. Service Provider Bridging 1015