An administrator needs to connect a new device to a switched network. The interconnect must be both redundant and combined bandwidth than a single link Which low-level protocol will help facilitate th

Link Aggregation Control Protocol (LACP), standardized in IEEE 802.3ad, negotiates and manages link aggregation groups (LAGs) between two network devices. It combines multiple physical links into a single logical interface, delivering fault tolerance - if one member link fails the others continue forwarding - and aggregate bandwidth that exceeds what any single link can provide.

'Link Allocation and Configuration Protocol' is a fabricated name with no corresponding networking standard or RFC.

LLDP (Link Layer Discovery Protocol) is a vendor-neutral Layer 2 neighbor-discovery protocol used for topology mapping, not for bundling links or increasing bandwidth.

LDP (Label Distribution Protocol) distributes MPLS label-to-FEC bindings in MPLS networks and is entirely unrelated to link aggregation or bandwidth combining.