Unit 1: Network Infrastructure
This will allow you to demonstrate your networking skills, knowledge, and abilities, with a focus on enterprise-level switching, routing, and multicast components that support cross-platform (inter)operability and integration with the most recent software-defined technologies.
EIGRP Graceful Shutdown feature is designed to improve EIGRP network convergence and it uses Goodbye message to communicate this information to the neighbors. Using Graceful Shutdown in EIGRP feature, a Goodbye Message is broadcasted when an EIGRP routing process is shut down, to inform adjacent peers about the impending topology change. This feature allows supporting EIGRP peers to synchronize and recalculate neighbor relationships more efficiently than would occur if the peers discovered the topology change after the hold timer expired.
In EIGRP, goodbye messages are sent in hello packets. After eliminating every peer on an interface, the Goodbye Message is displayed with every K-Parameter value set to 255. As demonstrated below, let’s use a lab simulation to help us understand this idea.
Scenario1 : EIGRP Graceful Shutdown
In the event that R1 is required to undergo maintenance, R2 would be unable to respond immediately since it would need to wait for its hold timer to expire. Messages transmitted at this period would not arrive.
