|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Network for Sale
In message <[email protected]>, "davids" writes: > >> And how does "delay" differ from RTT, except for the obvious constant >> factor? >> >> --Steve Bellovin, http://www.research.att.com/~smb > > The RTT is the sum of two delays. There is no simple way to separate >the two. In general, you don't even know what path the return packets are >taking. This same problem applies to trying to measure packet loss and using >the results to influence routing decisions. I understand that, of course, but since the return path is used for the ACKs that clock the transmissions, I suspect that it's a fair approximation. Paul's response to my posting was quite fair, in fact. --Steve Bellovin, http://www.research.att.com/~smb
|