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Certified - CompTIA Network + Audio Course

Episode 24: Modern WAN Technologies — MPLS and mGRE

20 Jul 2025

Description

This episode introduces two important WAN technologies: Multiprotocol Label Switching (MPLS) and multipoint Generic Routing Encapsulation (mGRE). MPLS uses labels to make forwarding decisions more efficient than traditional IP routing, enabling predictable performance and support for quality of service. mGRE allows multiple endpoints to connect dynamically through a single GRE tunnel configuration, simplifying scalability in environments such as VPN deployments. Both are key topics on the exam because they reflect current practices in WAN design.Real-world applications are explained, such as how MPLS supports traffic engineering in enterprise networks and how mGRE facilitates dynamic, secure connectivity across branch offices. You’ll also learn about troubleshooting considerations, such as latency in MPLS paths or configuration mismatches in GRE tunnels. The exam often tests your ability to distinguish these technologies from legacy WAN methods, so the episode reinforces definitions, benefits, and operational use cases. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your certification path.

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