Mike Mandulak wrote: > > Oops I forgot to cc my reply to the list again. but you're > right. > > Here's what I sent him... > Only one. However (there's always a however) the adapters can > be configured > to use ETR (early token release) which means that as soon as an > adapter > starts receiving a frame it can start transmitting its own data > out the TX > path while receiving the incoming frame. While that's not 2 > tokens, it is 2 > different frames on the wire at the same time.
That's not really what it means, not that it matters much these days. ;-) With no early token release, a sending station must see its own frame come back before it releases a free token that someone else can grab. With early token release (ETR), a sending station can release a token at the end of its transmission, regarless of whether it's starting to receive its own transmission yet. Someone else can grab the free token and turn it into a frame. Hence, there can be more than one frame, as you say, but still only one free token. It was all a bunch of marketing FUD really though. It would have to be a physically very large network for the ETR feature to make any difference. On typical networks, the sender was already getting back its own transmission as it finished its transmission anyway. So it released a free token at about the same time regardless if ETR was in use or not. But nobody cares any more about the actual behavior. You just have to learn the theory. ;-) _________________________ Priscilla Oppenheimer www.troubleshootingnetworks.com www.priscilla.com > > > ----- Original Message ----- > From: "Ken Chipps" > To: > Sent: Sunday, September 22, 2002 9:37 PM > Subject: Re: Token Ring fundamentals [7:53871] > > > > One, unless early token release is in effect. Assuming I am > remembering > > my old Token Ring stuff right. > > ""Tim Metz"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > While doing some token ring reading I realized that I have > no idea how > > many > > > tokens can be on the ring at one time. > > > > > > > > > > > > anyone??? stupid question?? > > > > > > > > > > > > Tim > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53882&t=53871 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
