APIC-EM is software defined networking way to automate the network deployments, Configurations & providing the traffic control optimization at the same time. Controller is the centralized management where we mention what end result we expect and controller does the rest of the work. APIC-EM is neither the control nor the data plane of the devices (Switches, Routers etc). is more of management of the end devices that collects the topology Information, Visibility of the entire network and can be used to manage the hardware, push configurations to the devices and automates the enterprise Infrastructure. Figure 9. APIC-EM NETWORK NETWORK PATH TRACE INTEVENTORY APPLICATION NORTH BOUND REST APIs INVENTORY POLICY MANAGER PROGRAMMER APIC-EM SERVICES TOPOLOGY NETWORK PLAG IWAN SERVICES SERVICES & PLAY GRAPEVINE ELASTIC SERVICES INFRASTRUCTURE (ESI) CISCO APIC EM (SDN CNTROLLER) - ENTERPRISE Downloaded: 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 SDN Practical Orientation APIC-EM has its APIs exposed as northbound APIs - Application programming Interface to get the controller controlled by the Cisco or third party software / applications and Its south bound Application programming Interfaces that controls the devices managed by the APIC-EM such as ISR Routers, ASR, Nexus 7K, Nexus 5k, Wireless Access Points etc. Deployments, Implementations, Configurations & most of the production frequent operational tasks is automated, efficient & programmable and time to perform the activities has been reduced from days to hours to minutes. Controller not only automates our Infrastructure but it also gives the complete visibility into our network. Operational Challenges Human Errors. Provisioning & de-provisioning. Manual Configurations on devices. Lack of Network Visibility. Verification of the configurations takes a lot of time. Rapid Reconfigurations of the device for frequent changes in the network. Isolation of operational Issues. Les Granular Control over the network. Keep the consistent configuratio