Bob Suchowierski on Tue, 27 Apr 1999 20:27:40 -0400 (EDT)

[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]

Re: major collision, nobody hurt

"David L. Martin" wrote:

> This is all by memory so take this with a grain of salt:
> E1 is a ethernet card installed on a network,
> EX is any other ethernet card installed on the network.
> E1 needs to TX a packet,
> E1 waits until is doesn't see any tranfic on the line,
> E1 starts a timer with a random timeout,
> When E1's timer runs out it checks to see if anyone is
> transmitting, if not E1 transmits this packet,
> While transmitting it "listens" to its own packet being transmitted.

List master:  forgive the off topic post PLEASE {:

This is for Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
transmission.  There are other types of network transmission schemes such as
token ring (IBM) in which there should NEVER be a collision because there is a
"token" that is passed from device to device and only device that can transmit
is the one with the token.  If any one is REALLY interested in the different
topologies and such I point you to which is from a class that
is taught at temple university.  Note that these pages may disappear at any
time since the class that the notes are from was taught almost a year ago...

fn:Bob Suchowierski