| 摘要 |
<p>A method is provided of accessing a service network via a Layer 2 transport. The Layer 2 transport includes a customer facing and a core-facing device coupled to the service network. The method includes the steps of providing multi-protocol label switching (MPLS) label switched path between the customer-facing device and the core-facing device and establishing a Layer 2 tunneling protocol (L2TP) tunnel over the label switched path to transport traffic between the entity and the service network. The core-facing device includes module for an L2TP Network Server (LNS) functions that provides label swapping between the L2TP tunnel and an MPLS tunnel to the service network. The customer-facing device includes module for an L2TP Access Concentrator (LAC) function.</p> |
