Dear All, I am working on a project in which I would like to get the Packet Delivery Ratio (packets delivered / packets transmitted) statistic. I am working on this project on my laptop with iwlwifi installed (Centrino Advanced-N 6200). Using the iw command I can obtain the tx_retries and tx_failed statistics. However, I am puzzled by the output. According to the documentation, - tx_failed is the "number of failed transmissions (retries exceeded, no ACK)". - tx_retries is the "cumulative retry counts". Since the default number of retries seems to be 7, I would expect tx_retries to be at least 7 times tx_failed. However, on my computer tx_retries is about 20 times **less** tx_failed. This doesn't make sense to me. Shouldn't the tx_failed counter increment only after a certain number of retries? And therefore be less than tx_retries? Regards, Daniel Sim -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
