This chapter contains the following sections:
ACI Fabric Optimizes Modern Data Center Traffic Flows
Describes how the Cisco ACI architecture addresses traditional data center design limitations by supporting increased east-west traffic demands and utilizing a spine-leaf topology. This approach improves bandwidth efficiency and simplifies network management for modern, multi-tenant data center environments.
VXLAN in ACI
Explains how VXLAN is used in ACI to extend Layer 2 segments over Layer 3 infrastructure, enabling scalable, flexible, and policy-driven data center networks.
Layer 3 VNIDs facilitate transporting inter-subnet tenant traffic
Explains how Layer 3 VNIDs in the ACI fabric enable efficient routing and transport of inter-subnet tenant traffic by decoupling endpoint identity from location and leveraging VXLAN encapsulation.
Transmission of Spanning Tree Protocol BPDU
This topic explains how Spanning Tree Protocol (STP) Bridge Protocol Data Units (BPDUs) are transmitted and handled in Cisco ACI environments, including the effects of static port assignments, VLAN pools, and VXLAN encapsulation on BPDU flooding and network stability.