|
PureBytes Links
Trading Reference Links
|
Tom wrote:
> If you go to ww.internettraffic.com, you will get a
> traffic report for some big routers around the world.
> During the day, it is not unusual to get above 10% packet
> loss. That is where the data will be disappearing.
I'm not an Internet expert, but a few things seem obvious. First, I'm
aware that files are transmitted as a set of discrete "packets" and that
each packet is transmitted independently. That means that the separate
packets which make up one file may follow different pathways from the
transmitting system to the receiving system and may, therefore, not
arrive in the same order as that in which they were sent. Therefore,
the TC/I protocols MUST include a process for rearranging the packets
into the proper order, and this implies that individual packets must
include a sequence number of some sort.
Because I never see a garbled file or web page, which would be the case
if packets were irretrievably lost, the TCP/IP must also be able to
recognize when the packet set is incomplete and to request
retransmission of any missing packets.
In the case of the SignalOnLine gaps I reported (in data from another
subscriber), it turns out they were due to frequent hangups of his
software (MetaStock) necessitating his shutting the program down and
restarting it.
SOOOO, I'm still looking for a SigOnLine subscriber with clean data that
I can look at and evaluate for completeness and timeliness.
Regards,
Carroll S.
|