access leaf
An access leaf is a network switch at the edge of a data center fabric, connecting end devices such as servers and storage systems to the network and enabling scalable, high-performance access.
An access leaf switch provides the primary point of connectivity for end devices—servers, storage, and appliances—within modern data center environments. By aggregating traffic from these devices, access leafs enable efficient, scalable communication and support the dense, high-speed requirements of contemporary workloads.
Access leafs often support both Ethernet and Fibre Channel, offer VLAN segmentation, and incorporate security features such as port security and access control lists. Their design emphasizes high port density, low latency, and redundancy to ensure reliable access and seamless integration with the broader data center fabric.
Best practices include planning for modular expansion, implementing robust security controls, and monitoring for performance and availability.