difference between Repeater,hub,bridge, switch,router, gateway

(snip)

There are different rules for different ethernet media, but I believe 5 is right for 10baseT. In the usual 10baseT case it is determined by loss of inter-packet gap, and not by round trip time limits for collision detect. Even with six 150m cables you will still be below the time limit.

Five is convenient as it allows for a central repeater connected to repeaters, each connected to more repeaters.

-- glen mo

-- glen

hmmm - I undersood that repeaters were permitted to, and did, eat the preamble during clock synchronisation and that this was a constraint to the number of repeaters.

I have the idea that later repeaters synchronised more quickly and ate fewer bits but that the standard was not changed.

Not at all sure tho' and to be honest no longer care:)

Seems like a homework question.

bod43 wrote: (snip, I wrote)

Well, there are the model 1 rules and the model 2 rules. The model 2 rules are more exact and more complicated.

Yes, by now if you are still using multiple repeaters, you should at least have one switch which allows for a really large number of repeaters.

-- glen