What is MPLS and how does it work?

by | Jan 3, 2020 | CCNA, CCNP, CompTIA, Data Security, Exclusive Articles, Network Security, VPN

MPLS Label Switched Path

When a network packet travels from one router to another, each router looks at the network layer header that contains a source IP address and a destination IP address and takes routing decisions based on that. Each router analyzes the packet header and chooses the next hop based on some routing algorithm. Multiprotocol Label Switching (MPLS) is a routing technique that assigns a label to each packet and the routing decision of the packet is taken as per the label instead of using a standard routing algorithm that takes the decision based on the network layer header. MPLS also supports multiple protocols, such as Internet Protocol (IP), Asynchronous Transport Mode (ATM), etc. MPLS is often used to improve scalability, performance, and bandwidth utilization.

How does MPLS work? In this article, we would discuss that in detail.

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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