On Mon, 11 Jul 2011, Doug Barton wrote:
On 07/11/2011 21:09, Charles Sprickman wrote:
I've had it hammered into my brain over the years that for servers it's
always best to set link speed and duplex manually at both ends to remove
any possible issues with link negotiation.
That hasn't been the right thing to do for at least 8 years or so,
probably 10 or more.
Yes, back in the 90's when all of this stuff was still new it was not
uncommon to have autonegotiation issues, but any even sort of modern
hardware (on either side of the link) will do better with auto than not.
Some of us still work at places where the hardware is 10 years old, you
know. :)
I do still see fixed setups in service provider handoffs - for example
this colo, Level3 and Hurricane. Also all our metro ethernet stuff
specifies a fixed configuration.
From what I can gather, this seems to be the standard practice in that
space, but then again you're supposed to be plugging into equipment that
wouldn't have the buffer issues that a $450 Dell switch would have.
The rule I recall is never do autoneg on one side and fixed on the other,
that more often than not will end up in a duplex mismatch.
Charles
hth,
Doug
--
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-- OK Go
Breadth of IT experience, and depth of knowledge in the DNS.
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