--- Chuck Larrieu <[EMAIL PROTECTED]> wrote:
> Besides which. Isn't 802.3Z gigabit? Not relevant to
> most switches or switch
> ports?
It is gigabit ethernet but there are annex that
specify this kind of flow control . I would say that
gigabit ethernet is *only* relevant for trunk ports on
switches and high speed routers .
>Certainly not to the question of a fast port
> sending data to a slow
> port.
Nope . Queuing is extremely difficult and congestion
on switches involves more than sending a few pause
packets to end stations.
>
> And re-reading, yeah I guess I was confused a bit by
> the summary, which I
> may have misinterpreted as autoconfig
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of Flem
> Sent: Thursday, January 11, 2001 9:56 PM
> To: Chuck Larrieu
> Cc: [EMAIL PROTECTED]
> Subject: RE: switch flow control
>
> One of us needs a pair of glasses ;-) I read ;
>
> minimal specification for asymetric flow control
>
> Has to do with flow control.
>
> If you say a device to pause , process the buffers
> and
> then release the pause is indeed a minimal form of
> flow control .
>
> I never played with set port flowcontrol so I
> getting
> impressed ....
>
> I loved the old style no buffer , drop packet .
> Things are really getting more complex is it not ?
>
>
> flem
>
> --- Chuck Larrieu <[EMAIL PROTECTED]> wrote:
> > Guys, this "pause" frame does not appear to have
> > anything whatsoever to do
> > with flow control of data transmission. Unless I
> am
> > blind as a bat I am
> > reading the link below to be referencing auto
> > negotiation of links between
> > NIC and switch or any device on a port and
> switch..
> >
> > Look, if a switch cannot output data as fast as it
> > comes in, and the buffers
> > fill, then packets get dropped. Same as with a
> > router. or a PC.
> >
> > Chuck
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]] On Behalf Of Flem
> > Sent: Thursday, January 11, 2001 9:17 PM
> > To: [EMAIL PROTECTED]
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: switch flow control
> >
> > Or ;
> >
>
http://grouper.ieee.org/groups/802/3/z/public/presentations/jan1997/HFpsbits
> > .pdf
> >
> > Written by a cisco guy ... you are rights cisco do
> > implement it.
> >
> > flem
> >
> >
> > --- Chris McCoy <[EMAIL PROTECTED]> wrote:
> > > This is true...sorry. I was reading a cisco
> > > document
> > > on the Cat 6000s where they explained flow
> control
> > > as
> > > being 802.3Z flow control. I screwed up...(see
> > >
> >
>
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sft_6_1/configgd
> > /ether.htm#xtocid170110)
> > > Come to think of it...it's called 802.1x
> > > (http://www.ieee802.org/1/pages/802.1x.html).
> > Cisco
> > > supports it with some exceptions (set port
> > > flowcontrol).
> > >
> > > Guhhhh....
> > >
> > > Chris M.
> > >
> > > --- Flem <[EMAIL PROTECTED]> wrote:
> > > > 802.1Z ? or 802.3z ?
> > > > This is gigabit stuff is it not ?
> > > >
> > > > Is cisco implementing 802.3z on his gigabit
> > > > switches ? Don't think so .
> > > > Switch will buffer , if no buffer , then drop
> > > > packet.
> > > >
> > > > Do you know what vendor implements pause
> frames
> > ?
> > > >
> > > >
> > > > flem
> > > >
> > > >
> > > > --- Chris McCoy <[EMAIL PROTECTED]> wrote:
> > > > >
> > > > > 802.1Z or 'pause frames'
> > > > >
> > > > > Chris M.
> > > > >
> > > > > --- Flem <[EMAIL PROTECTED]> wrote:
> > > > > > Between NIC and switch ?
> > > > > > What is the name of this handshaking ?
> > > > > >
> > > > > >
> > > > > > flem
> > > > > >
> > > > > > --- Circusnuts <[EMAIL PROTECTED]>
> wrote:
> > > > > > > I believe there is a handshake going on
> > with
> > > > the
> > > > > > > switch & NIC
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: "Rick H
>
>
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