Implementing Cisco Service Provider Advanced Routing Solutions (SPRI) — Question 72

A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer’s core network. After getting the configuration ready for NSR. on which router should the operator implement NSR changes?

Answer options

• A. on the CE router
• B. on the ASBR router
• C. on the ABR router
• D. on the PE router

Correct answer: D

Explanation

The NSR feature is designed to minimize downtime and ensure continuous packet forwarding, which is crucial for Provider Edge (PE) routers that connect to customer networks. The other options, such as CE, ASBR, and ABR routers, do not directly manage service continuity in the same way, making them less appropriate for NSR implementation.