Administrator Guide

● 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
To display the VLAN-Stacking configuration for a switchport, use the show config command from INTERFACE mode.
Dell#show run interface te 2/0
!
interface TenGigabitEthernet 2/0
no ip address
switchport
vlan-stack access
no shutdown
Dell#show run interface te 2/12
!
interface TenGigabitEthernet 2/12
no ip address
switchport
vlan-stack trunk
no shutdown
Service Provider Bridging
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