Layer 2 VPN service advertisement from access nodes to a core network

摘要

A method, system and computer readable medium for advertising and interoperating Layer 2 VPN services from an access node to a core network. The method can include executing, using one or more processors, a routing protocol on an access node to establish adjacency with a core network node in an access mode. The method can also include mapping, using the one or more processors, an access network Layer 2 service identifier to a core network service identifier. The method can further include advertising, using the one or more processors, a mapping for the L2VPN service to the core network node. The method can also include sending, using the one or more processors, network traffic from the access node to the core network node without core network encapsulation.

主权项

1. A method for interoperating a Layer 2 Virtual Private Network (L2VPN) service by an access node to a core network node in a core network, the method comprising:
executing by the access node using one or more processors, a routing protocol on the access node to establish adjacency with the core network node in an access mode; mapping by the access node using the one or more processors, an access network Layer 2 service identifier to a core network service identifier, wherein the mapping includes a mapping of a Virtual Local Area Network (VLAN) to a Service Instance Identifier (ISID); advertising by the access node using the one or more processors, the mapping for the L2VPN service to the core network node by sending an Intermediate System to Intermediate System, Shortest Path Bridging, Type Length Values (ISIS-SPB TLV) message to the core network node; and sending by the access node using the one or more processors, network traffic from the access node to the core network node without encapsulation.