RE: [ethmac] Hai...

["Illan Glasner" <iglasner@zumanetworks.com>]

4-Apr-01

   Hi,

        The MAC as far as I can see don't need to worry about bad media
and it is a waste of logic and increase in bugs to add logic that is not
needed.

meaning if the media is bad and therefore you can't trasmite unless it
is due to excessive colliision I would thing to do nothing is better.

as this extra logic for flashing etc don't realy "cure the media" and so
it doesn't help.

just my 2c

have a nice day

   Illan


-----Original Message-----
From: Igor Mohor (uni-mb) [mailto:igor.mohor@uni-mb.si]
Sent: Thursday, April 05, 2001 3:57 AM
To: ethmac@opencores.org
Subject: RE: [ethmac] Hai...


A transfer is suppose to be finished in a predifined period of time.
While
one station is transmitting, all the others are waiting. The maximum
transfer
time is 2 x 1518 bytes. When the carrier sense is not deasserted within
that
period of time, the defer counter reaches the excessive defferal value
and a packet can be aborted or the MAC can wait forever for the carrier.

Regards,
	Igor

> -----Original Message-----
> From: owner-ethmac@opencores.org [mailto:owner-ethmac@opencores.org]On
> Behalf Of suresh.dorepally@st.com
> Sent: 4. april 2001 11:53
> To: ethmac@opencores.org
> Subject: [ethmac] Hai...
>
>
> Hai everybody,
> Can i please know ...what is the use of defer counter in Ethernet
> Transmit block..
> Can't i manage things without Defer counter...
> what is significance os excessive deferral signal of Defer counter...
> Advanced Thanks for your help
> Best regards
> Suresh
>