You are designing a network that will run EIGRP over a Metro Ethernet service that does not employ a link-loss technology. What will be the impact on convergence if there is a break in the end-to-end

Immediate adjacency loss requires the interface to go down, which does not happen when the failure is internal to the provider network and no link-loss signaling mechanism is in place.

When the end-to-end Layer 2 path breaks inside the service provider network, the CE router's physical port remains in an up/up state because the local switch connection is still intact. EIGRP hellos are silently discarded in the provider cloud, but the router sees no interface event to trigger immediate reconvergence. The neighbor is only declared dead after the hold timer - typically 15 seconds on LAN interfaces - expires without a received hello, causing a significant convergence delay.

The switch ports connecting the CE routers remain physically up because the break is inside the provider's network, not at the local CE-to-switch segment.

The local VLAN and switch ports stay active since only the internal provider path is disrupted, leaving the CE-facing switch ports unaffected and the interface state unchanged.