OPTIMAL LATENCY IN DISTRIBUTED EGRESS SCHEDULED SYSTEM
卷宗概要
发明人
Francois Labonte
IPC 分类
CPC 分类
A networking device controls transmission to an egress port with a virtual output queue using credits received from an egress scheduler. Credits may be requested at various rates based on the size of the virtual output queue. To optimize latency and prevent unused credits, the thresholds for changing the requested credit rates is determined based on the credit rate and the round-trip time from the virtual input queue to the egress scheduler. This ensures that when incoming data to the virtual output queue ends, the scheduler does not issue credits faster than the virtual output queue can signal changes to the effective credit rates.
原文（中文）
A networking device controls transmission to an egress port with a virtual output queue using credits received from an egress scheduler. Credits may be requested at various rates based on the size of the virtual output queue. To optimize latency and prevent unused credits, the thresholds for changing the requested credit rates is determined based on the credit rate and the round-trip time from the virtual input queue to the egress scheduler. This ensures that when incoming data to the virtual output queue ends, the scheduler does not issue credits faster than the virtual output queue can signal changes to the effective credit rates.