What is a switch that can perform aggregation called

An aggregation switch is a network switch designed to consolidate traffic from multiple access switches or devices into a single high-bandwidth link, enhancing bandwidth, redundancy, and network efficiency.What is an Aggregation Switch?An aggregation switch, also called an aggregate switch, is a high-capacity network device that collects traffic from multiple access switches, wireless access points, servers, or other edge devices and forwards it to core switches or routers . It acts as a central point in the network, reducing bottlenecks and simplifying management while providing higher throughput and reliability .Key FeaturesLayer 2 and Layer 3 Operation: Aggregation switches can operate at Layer 2 (switching based on MAC addresses) or Layer 3 (routing based on IP addresses), depending on network topology and configuration .Link Aggregation: They support protocols like Link Aggregation Control Protocol (LACP) or static link aggregation, allowing multiple physical links to be combined into a single logical connection. This increases bandwidth and provides failover capabilities in case of link failure .High Port Density: Aggregation switches often have high port counts to connect multiple access switches and handle large volumes of traffic efficiently .Redundancy and Scalability: They provide network redundancy and enable scalable network expansion, making them suitable for enterprise backbones, data centers, and large campus networks .Deployment ScenariosAggregation switches are typically deployed between access switches and core switches, serving as an intermediate layer in hierarchical network designs. They are essential in high-traffic environments where multiple access switches need to be consolidated into fewer high-bandwidth uplinks . Common topologies include star or fat-tree designs, often used in data centers and large enterprise networks .Additional CapabilitiesTraffic Management: Aggregation switches can implement VLAN tagging, QoS policies, and access control lists (ACLs) to prioritize traffic and improve network performance .Loop Prevention: They often use Spanning Tree Protocol (STP) to prevent network loops and ensure efficient data paths .Flexibility: Modular designs allow for easy network reconfiguration and expansion without disrupting existing traffic . In summary, aggregation switches are specialized switches that perform traffic consolidation, link aggregation, and high-speed forwarding, making them a critical component in scalable, high-performance network architectures .