| 摘要 |
A digital subscriber link (DSL) network providing an interconnection to a virtual private network using multi-protocol label switching (MPLS) includes a DSL source, an L2TP access concentrator (LAC) to aggregate DSL source traffic, a broadband remote access server (B-RAS) to aggregate DSL Internet traffic as well as to function as a LAC for MPLS-destined sessions, an L2TP network server (LNS) to aggregate and authenticate Internet-bound DSL traffic and to switch sessions designated for MPLS-enabled locations, and an MPLS-enabled LNS to terminate the sessions and transmit the sessions to MPLS VPN customers.
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