>Keep in mind too that MTU size is just a MAX. Packets can be as small as
>40 bytes (basically the header data and 1 byte of REAL data).
>I was always told that lowering MTU would improve interactive connections
>like Telnet but I dont think it does.
Well, if you're TELNETting & (say) FTPing at the same time, the smaller
MTU can help the TELNET session(s), since the TELNET packets thus have a
higher probability of being able to "sneak in" between the FTP packets.
Of course, if connectivity to the FTP site is such that the line has a
significant amount of idle time, the lower MTU doesn't buy you
anything.
(Web-browsing a page with lots of graphics might easily substitute for
"FTPing" in the above example. Basically, the issue is that there is,
as far as I know, no way to provide "quality of service" for certain
types of traffic; traffic is merely queued, packet-by-packet, first
come, first served.)
david
-- David H. Wolfskill david@dhw.vip.best.com As a computing professional, I believe it would be unethical for me to advise, recommend, or support the use (save possibly for personal amusement) of any product that is or depends on any Microsoft product. - To unsubscribe, email 'majordomo@livingston.com' with 'unsubscribe portmaster-users' in the body of the message. Searchable list archive: <URL:http://www.livingston.com/Tech/archive/>