Hello! > Is there any way for a user-level application to determine the > current rtt value for one of its own tcp connections? I can't > seem to find an ioctl or similar to achieve this. Seems like > it isn't possible, or does anyone have an idea if (how) to > gain that info? No. Though in 2.4 you can get current RTO from /proc/net/tcp. Indeed, it is not good. Alexey - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/