MPLS technology introduces the concept of connection-oriented label switching on the connectionless IP network, and integrates IP technology and ATM label switching technology.

Question

Options

• ATrue
• BFalse

• A
  81% (22)
• B
  19% (5)

Explanation

A is correct because MPLS (Multiprotocol Label Switching) does exactly what the statement describes: it grafts connection-oriented, label-based forwarding - borrowed from ATM's virtual circuit model - onto the underlying connectionless IP infrastructure. Routers (called Label Switching Routers) assign short fixed-length labels to packets at ingress, and forwarding decisions along the path are made purely by swapping labels, not by inspecting IP headers hop-by-hop.

B is incorrect because every part of the statement is accurate - MPLS genuinely bridges the ATM label-switching paradigm and IP's packet-based, connectionless model; there is nothing false in the claim.

Memory tip: Think of MPLS as giving IP packets a "VIP wristband" - the label is stamped once at the door (ingress router), and every bouncer (LSR) inside just reads the wristband without checking your full ID (IP header), mimicking how ATM virtual circuits work inside a classically connectionless IP network.

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