[37394] in North American Network Operators' Group
Re: 10 gige experience
daemon@ATHENA.MIT.EDU (Greg Maxwell)
Thu May 10 11:21:13 2001
Date: Thu, 10 May 2001 11:12:21 -0400 (EDT)
From: Greg Maxwell <gmaxwell@martin.fl.us>
To: John Fraizer <nanog@Overkill.EnterZone.Net>
Cc: Vinay Bannai <bannai@pacbell.net>, Mike Leber <mleber@he.net>,
nanog@merit.edu
In-Reply-To: <Pine.LNX.4.21.0105101108590.5347-100000@Overkill.EnterZone.Net>
Message-ID: <Pine.GSO.3.96.1010510111035.8845F-100000@da1server>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, 10 May 2001, John Fraizer wrote:
> > Anyone know any good articles on 10GB ethernet? I am specifically
> > intrested if they have removed some of the legacy requirements that hamper
> > gigabit ethernet (such as a default MTU of 1500, half-duplex, etc.)
>
> Half-duplex? The last time I checked, my GigE equipment didn't default to
> half-duplex.
No I wouldn't expect it to, nor did I state anything about defaulting to
half. There is no purpose for half-duplex in GIGE, even the few GIGE hubs
I've seen are buffered and user congestion control to allow full duplex
operation. The possibility of half-duplex mode just adds unneeded cruft
and additional failure modes.
