Manageability tools for lossless networks

摘要

Manageability tools are provided for allowing an administrator to have better control over switches in a lossless network of switches. These tools provide the ability to detect slow drain and congestion bottlenecks, detect stuck virtual channels and loss of credits, while hold times on edge ASICs to be different from hold times encore ASICs, and mitigate severe latency bottlenecks.

主权项

1. A network switch, comprising:
a port configured to transmit data; a processor, coupled to the port; and software, executed by the processor, comprising:
logic to detect that a virtual channel associated with the port is stuck, comprising
logic to determine that there are zero transmission credits for the stuck virtual channel at the end of an observation period or that more than a predetermined number of transmission credit zero events has occurred during the observation period; andlogic to report the stuck virtual channel.