Based on the HA topology image below, which two statements describe the end-state when power...

Comprehensive and Detailed Explanation

This scenario depicts a High Availability (HA) topology utilizing the ION 1200-S model's Fail-to-Wire (bypass) capabilities to share WAN links between two devices without needing external switches for every WAN connection.

1. WAN Link Availability (Statement A):

The diagram illustrates a "daisy-chain" cabling method supported by the ION 1200-S bypass pairs.

ISP A (Green): Connects directly to the "Standby" (Left) unit first. Since the Standby unit remains powered on, it maintains direct access to ISP A.

LTE/5G (Blue): Connects to the "Active" (Right) unit first. The connection then loops through a bypass pair on the Active unit to the Standby unit. When power is removed from the "Active" unit, the fail-to-wire relays on its Ethernet ports close physically. This creates a passive electrical bridge that connects the LTE modem directly to the Standby unit. The Standby unit (now becoming Active) will detect the link state change and successfully utilize the LTE connection. Therefore, both WAN links remain usable.

2. LAN Failover Mechanism (Statement C):

Prisma SD-WAN ION devices typically use a VRRP-like mechanism for LAN redundancy.

When the "Active" node fails (loses power), the "Standby" node stops receiving keepalives and promotes itself to the Active state.

To ensure downstream switches and clients immediately send traffic to the new Active unit, it must update their ARP tables. It does this by broadcasting a Gratuitous ARP (GARP) packet for the Virtual IP (VIP) address of the Switch Virtual Interfaces (SVIs). This action informs the network that the MAC address associated with the Gateway I1P is now reachable via the port connected to the new Active ION.234