An LCC is composed of multiple LCRs (Local Compute Racks), and each LCR contains cabinets, switches and other basic equipment as well as various resource nodes. Each LCR involves multiple LCNs (Local Compute Racks), which is the smallest set of resources delivered by each public cloud product in LCC. You can freely match LCNs to achieve flexible support for IaaS computing/storage public cloud products such as BCC, BBC, CDS, etc.