This case study will detail DART's migration from a Synchronous Optical Network (SONET) topology to a Multi-Protocol Label Switching - Transport Profile (MPLS-TP) network topology. The discussion will include the rationale behind the decision to migrate, the challenges encountered, cybersecurity concerns, and lessons learned.
1. Discuss why DART migrated from SONET to MPLS-TP
2. Explain challenges that were encountered
3. Identify cybersecurity concerns
4. Summarize lessons learned and the project outcome