[c-nsp] does duplex mismatch affect UDP throughput?

[Scott Granados]

AT&T Metro E services are generally hard set and personally, I generally go 
this route as well.  I find a lot of problems with autonegotiation between 
vendors.  Company J handles this pretty well on their switching and almost 
always negotiations set up correctly and company C generally in my 
experience gets it wrong and likes to fall in to half duplex even though the 
far end is negotiated to full.  Never had any issues though after hard 
setting both sides so it just became a matter of habbit.  Maybe its 
something I should revisit.


-----Original Message----- 
From: Mark Tinka
Sent: Tuesday, August 02, 2011 6:45 AM
To: cisco-nsp at puck.nether.net
Cc: Gert Doering
Subject: Re: [c-nsp] does duplex mismatch affect UDP throughput?

On Sunday, July 31, 2011 02:47:38 PM Gert Doering wrote:

> If you order a cross-city ethernet link from a telco,
> they usually force duplex/speed settings on their gear
> and turn off autonegotiation.

Funny, we tend to do the opposite these days :-).

I can understand closed networks and enterprise/corporate
networks still going the "hard-coding" route, but it'd be
interesting to learn if a vast majority of service providers
are still doing the same these days (yes, it's still common
to find hard-coding in service provider environments as well
these days, but I just wonder whether the number is falling,
rising or stagnant).

I suspect thoughts on this are bound to be academic :-).

Mark.