[AusNOG] A question for carriers on autoneg

[Mark ZZZ Smith]

----- Original Message -----
> From: Tim Warnock <timoid at timoid.org>
> To: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net>
> Cc: 
> Sent: Sunday, 11 May 2014 9:04 PM
> Subject: Re: [AusNOG] A question for carriers on autoneg
> 
>>  I'm curious as to the thinking around auto negotiation being on or off 
> for
>>  service handoff from list participants and their reasoning around the 
> choice.
>> 
>>  Humble regards,
>> 
>>  Chris
> 
> Way back in the day(tm) some very popular Cisco devices were incapable of 
> auto-negotiation.
> 
> Other reasons I've seen were that a lot of older carrier switches were 
> incapable of policing ingress and egress and so the easiest way was to change 
> the port speed.
> 
> As a side note It's worth noting you can disable auto negotiation on a 
> 1000Base-LX (or similar gig fibre based service) - it might not be part of the 
> IEEE but if you've dealt with NBNCo as an example you'll know it's a 
> requirement of theirs in order to get a link up.
> 

"Shame, shame, shame." says Derryn Hinch!



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