Administrator Guide

• 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.
DellEMC#show run interface tengigabitEthernet 1/1/1/1
!
interface TenGigabitEthernet 1/1/1/1
no ip address
switchport
vlan-stack access
no shutdown
DellEMC#show run interface tengigabitEthernet 1/1/2/1
!
interface TenGigabitEthernet 1/1/2/1
no ip address
switchport
vlan-stack trunk
no shutdown
Enable VLAN-Stacking for a VLAN
To enable VLAN-Stacking for a VLAN, use the following command.
• Enable VLAN-Stacking for the VLAN.
INTERFACE VLAN mode
vlan-stack compatible
To display the status and members of a VLAN, use the show vlan command from EXEC Privilege mode. Members of a VLAN-Stacking-
enabled VLAN are marked with an M in column Q.
Configuring the Protocol Type Value for the Outer VLAN
Tag
The tag protocol identifier (TPID) field of the S-Tag is user-configurable.
To set the S-Tag TPID, use the following command.
• Select a value for the S-Tag TPID.
CONFIGURATION mode
vlan-stack protocol-type
Service Provider Bridging
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