Edge-based per-flow qos admission control in a data network

A boundary routing apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code for one or more programs,
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following,
• receive a request for resource reservation for a flow through the boundary router onto a downstream link, and
• determine to forward the request toward an upstream router without performing admission control for the downstream link.

A method comprising:

• receiving a resource reservation message requesting resources for a flow destined for a downstream link;
• determining that the message is received at a proper edge router to forward the flow over the downlink;
• and
• performing admission control for the downstream link and an upstream link associated with the flow based on the determination.

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code for one or more programs,
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following,
• receive a resource reservation message requesting resources for a flow destined for a downstream link,
• determine that the message is received at a proper edge router to forward the flow over the downlink, and
• perform admission control for the downstream link and an upstream link associated with the flow based on the determination.