Hi All, I implemented power management for my network driver. As a part of my stress test I did the power up and down using the Power management interface in Linux while at the same time ping traffic was flowing. But I saw that after some time ping traffic from the PC to DUT stopped flowing although power was up. But ping from DUT to PC was still happening. To confirm its not a software issue what I did is I did the same test with ifconfig eth0 up and ifconfig eth0 down on DUT instead of power down and it ran properly. Now the driver path for both power down and ifconfig eth0 down is almost same except in power down I am turning off the PHY power. So is this problem because the ifconfig eth0 down gracefully turns off the network interface after notifying to top network layers like ICMP and other TCP and UDP layers while power down path is not doing the same. Thanks in advance. Thanks, Hardik - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html