Important Points To Remember - Dell S4820T Configuration Manual

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Figure 111. VLAN Stacking in a Service Provider Network

Important Points to Remember

Interfaces that are members of the Default VLAN and are configured as VLAN-Stack access or trunk

ports do not switch untagged traffic. To switch traffic, add these interfaces to a non-default VLAN-

Stack-enabled VLAN.

Dell Networking cautions against using the same MAC address on different customer VLANs, on the

same VLAN-Stack VLAN.

You cannot ping across the trunk port link if one or both of the systems is an S4820T.

This limitation becomes relevant if you enable the port as a multi-purpose port (carrying single-

tagged and double-tagged traffic).

Service Provider Bridging