SCHEDULING STRATEGY FOR PACKET SWITCHED TRAFFIC

摘要

The invention provides a leaky-bucket method for delivering packets from a first node (A) to a second node (B) in a packet switched network, comprising the steps of: receiving at the first node (A) of at least one transmission comprising buffered packets, and at least one transmission comprising real-time packets; transmitting the received packets to the second node (B) and increase a bucket counter for the bucket, which bucket has a leak rate that is equal to or larger than the byte transmitting ratio of the real-time packets. The method is particularly characterize in that: the bucket size for the buffered packets is set to a first size; the bucket size for real-time packets is set to a second size that is larger than the first bucket size; real-time packets are transmitted to the second node (B) upon arrival at the first node (A), provided that a bucket counter indicates that the second bucket size is not overflowed; buffered packets are transmitted to the second node (B) when the bucket counter indicates that it has leaked enough to receive a buffered packet without overflowing said first bucket size. The invention is also providing an improved node arranged to perform the improved method for a leaky-bucket.