Pass 300-630 Exam Guide

To enable SSH communication between Web_EPG (Web Endpoint Group) and App_EPG (Application Endpoint Group), it’s necessary to apply a configuration that allows bidirectional communication while not restricting ports based on their directionality. By enabling “Apply Both Directions” and disabling “Reverse Filter Ports,” this ensures that the filter allows SSH packets to flow from Web_EPG to App_EPG and vice versa without any restrictions based on the port’s direction, which is essential for establishing an SSH session. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

Cisco ACI handles MSTP TCN frames by flushing local endpoints in the affected EPG to prevent stale entries. For MST BPDUs to traverse the ACI fabric, a dedicated EPG for the native VLAN with static bindings is required for MSTP-enabled external switches. References := (Implementing Cisco Application Centric Infrastructure Official Cert Guide)

Configuring the Attachable Entity Profile (AEP) on a physical domain is necessary to ensure server ports can migrate to a different leaf switch in the event of a catastrophic failure. This configuration associates server ports with specific leaf switches and allows for seamless migration of connections without relying on Link Aggregation Control Protocol (LACP), which the server NICs do not support. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

When Server A is connected to the Cisco ACI fabric using teamed interfaces with one active and one standby interface, enabling ARP flooding ensures that the ACI fabric can learn about the new active interface after a failover. This allows for seamless communication continuity even when the standby interface becomes active and starts sending traffic with its built-in MAC address.