Question: 1. What problems does the failure of an SDN controller cause? Describe a solution to overcome these problems. 2. A network link attached to a

1. What problems does the failure of an SDN controller cause? Describe a solution to overcome these problems.

2. A network link attached to a router fails, therefore, no traffic can be forwarded through it. Which of the following mechanisms would help the router itself as well as other routers in thenetwork become aware of this link failure: a routing protocol or anSDN controller? Please explain.

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