Hi Fred,
Yes, that's the common topology; However, 802.3x is often used only
unidirectional and with very limited effect, but not bidirectional. At least
that's the default settings... (I wonder, if both ends of a link are RX,
would flow control ever get triggered?)
I know a number of deployments, where globally enabling full flowcontrol (as
opposed to RX / TX only) lead to fewer packet drops, but also to sometimes
massively reduces network bandwidth.
This is what I meant when I said you don't want to deploy flow control in a
multi-tier network topology because of the congestion tree forming.
Best regards,
Richard
----- Original Message -----
From: "Fred Baker" <[email protected]>
To: "Richard Scheffenegger" <[email protected]>
Cc: "Jonathan Morton" <[email protected]>; <[email protected]>
Sent: Monday, May 16, 2011 11:49 AM
Subject: Re: [Bloat] Jumbo frames and LAN buffers (was: RE: Burst Loss)
On May 16, 2011, at 9:51 AM, Richard Scheffenegger wrote:
Second, you wouldn't want to deploy basic 802.3x to any network consisting
of more than a single switch.
actually, it's pretty common practice. Three layers, even. People build
backbones, and then ring them with workgroup switches, and then put small
switches on their desks.=
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