Route decision method, content delivery apparatus, and content delivery network interconnection system

摘要

Embodiments of the present invention relate to a route decision method, a content delivery apparatus, and a content delivery network interconnection system. A route decision method includes: receiving a notification message sent by a downstream CDN; determining a current service aggregate according to the notification message; and according to the current service aggregate and a total service quantity thresholdtotal quantity of services, performing route decision on a to-be-forwarded user request, where the total service quantity thresholdtotal quantity of services is an upper limit, set by the downstream CDN, of services capable of being provided by the downstream CDN for an upstream CDN. The embodiments of the present invention improve the accuracy of an upstream CDN in selecting a downstream CDN for a to-be-forwarded user request, and thereby improve the route decision efficiency.

主权项

1. A route decision method, comprising:
receiving a notification message sent by a downstream content delivery network (CDN), wherein the notification message is used to determine a current service aggregate of services provided by the downstream CDN for an upstream CDN interconnected with the downstream CDN; determining the current service aggregate according to the notification message; collecting, by the upstream CDN, statistics on the current service aggregate including current total quantity of concurrent requests and current total amount of concurrent traffic; and performing route decision on a to-be-forwarded user request according to the current service aggregate, the collected statistics, and a total service quantity thresholdtotal quantity of services, wherein the total service quantity thresholdtotal quantity of services is an upper limit, set by the downstream CDN, of services capable of being provided by the downstream CDN for the upstream CDN.