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RE: 16-bit 625Mbaud XGMII


Jaime,

I have to disagree with your point below that XGMII should be the only
specified interface.  I think that it would be extremely short-sighted of
the P802.3ae Task Force to develop one standardize interface that seriously
impedes and may even prevent certain implementations.  XGMII provides a
format for information flowing to and from the Reconciliation Sublayer and
PCS, but XGMII is seriously limited in the distance it can transmit over
FR-4 PCB traces.  XAUI provides a method for increasing the distance and
lowering the pin count; both of which are extremely desirable in
switch/router implementations and LOM (LAN-on-Motherboard) implementations.

Thanks,
Brad

	-----Original Message-----
	From:	Jaime Kardontchik [SMTP:kardontchik.jaime@ulinear.com]
	Sent:	Monday, March 20, 2000 5:33 PM
	To:	Curt Berg
	Cc:	stds-802-3-hssg@ieee.org
	Subject:	Re: 16-bit 625Mbaud XGMII


	<Other text deleted.>

	The only specified interface should be the XGMII.

	Jaime

	Jaime E. Kardontchik
	Micro Linear
	San Jose, CA 95131