| 摘要 |
A method includes tagging core routes of a core network service node associated with the core network service with an assigned core service specific route target, and distributing the core routes tagged with the assigned core service specific route target to one or more customers subscribing to the core network service associated with the core service node, whereby the customers are enabled to reach the core network service node via a core network service VPN. A network architecture includes an edge network having provider edge nodes configured to form a core network service VPN logically between subscribing customer network sites and a core service network, the core service network providing a core network service, the core service network including a core network service node, and a plurality of customer network sites having customer edge nodes attached to associated provider edge nodes of the edge network, wherein each customer edge node is configured to import routes tagged with a core service specific route target, and wherein the core network service node is configured to import routes tagged with a core service specific customer route target.
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