A new VLAN segment has been added to the network. Only the existing connected interface may be used. What should the BIG-IP Administrator do to allow traffic to both the existing and the new VLAN?

LACP (Link Aggregation Control Protocol) aggregates multiple physical interfaces into a single logical bundle for increased bandwidth or redundancy, but does not enable multiple VLANs to share one interface.

A tagged VLAN on BIG-IP applies 802.1Q VLAN tags to Ethernet frames, inserting a VLAN identifier that allows the switch and BIG-IP to distinguish traffic belonging to each VLAN on the same physical link. This is the only mechanism that permits one existing interface to carry traffic for both the original VLAN and the newly added VLAN segment concurrently.

An untagged VLAN assigns the interface to exactly one VLAN without inserting a frame tag, which means only a single VLAN can be active on that interface at a time.

MSTP (Multiple Spanning Tree Protocol) is a loop-prevention protocol that maps VLANs to spanning tree instances, but it does not provide the frame-tagging mechanism needed to carry multiple VLANs over a single physical interface.