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    Configuring Interfaces for Layer 2 Circuits Overview

    A Layer 2 circuit or pseudowire is a point-to-point Layer 2 connection transported by means of MPLS or another tunneling technology on the service provider’s network. Layer 2 circuits are also called pseudowires. A Layer 2 circuit is similar to a circuit cross-connect (CCC), except that multiple Layer 2 circuits can be transported over a single label-switched path (LSP) tunnel between two provider edge (PE) routers. In contrast, each CCC requires a dedicated LSP.

    The Junos OS implementation of Layer 2 circuits supports only the remote form of a Layer 2 circuit; that is, a connection from a local customer edge (CE) router to a remote CE router.

    Modified: 2017-09-13