Advanced Traffic Management Guide K/KA/KB.15.15

Figure 7 Untagged VLAN operation
Tagged packet forwarding If a port is a tagged member of the same VLAN as an
inbound, tagged packet received on that port, then the
switch forwards the packet to an outbound port on that
VLAN.
To enable the forwarding of tagged packets, any VLAN to
which the port belongs as a tagged member must have the
same VID as that carried by the inbound, tagged packets
generated on that VLAN.
50 Static Virtual LANs