Key requirements include: high backplane bandwidth (supporting wire-speed forwarding across all downlink ports), 10G uplink ports (connecting to the core layer), Link Aggregation (LACP) support, advanced routing capabilities (OSPF/BGP), and high-reliability design (dual power. Key requirements include: high backplane bandwidth (supporting wire-speed forwarding across all downlink ports), 10G uplink ports (connecting to the core layer), Link Aggregation (LACP) support, advanced routing capabilities (OSPF/BGP), and high-reliability design (dual power. An aggregation switch is a network device that consolidates traffic from multiple access switches, wireless access points, or other edge devices and forwards it to core switches or routers. By bundling multiple network connections into a single high-bandwidth link, aggregation switches help. This chapter covers the design recommendations for a data center design deployment consisting of a Cisco Nexus® 7000 Series Switch at the aggregation layer and a Cisco Nexus 5000 Series Switch at the access layer. The content of this chapter focuses on the aggregation layer design with the Cisco. In fiber optic environments, access layer switches need to meet the following core requirements: adequate port density (typically 24-48 ports), PoE power delivery capability (for PoE switches), fiber uplink ports (1G or 10G), VLAN segmentation support, and basic QoS. For Fiber-to-the-Desktop (FTTD). This document provides campus networks typical configuration examples and feature typical configuration examples. It facilitates the connectivity because it would rapidly become impractical to.