Tunneling Technologies: VPLS

VPLS is a layer 2 service that allows two geographically separate LANs to be interconnected as a single bridged domain over an MPLS network.

VPLS over GRE allows VPLS across an IP network.

VPLS instances must be configred on each PE router.

Laye 2 VPNs are not a focus of the CCIE so there is limited documentation surrounding this technology in the study guide.

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