bce packet loss

[Charles Sprickman]

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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