Re: [OT]Creating a unidirectional link failure scenario

Well the pros of auto are;
1. This initial thread would not hve opened if there was auto auto in both
side. Auto picks up UDLD. When one strand was pulled GSR would also hve
shown interface status down.
2. Hard coding wouldn't pick up on the link quality. What if u set port to
be 1 gb full and suddenly there're EMI or electronics noise. You will see a
lit of retransmission. Certain apps will stop working.

The list goes on....

Still old gear do bot support auto auto type scenario. Most new gear hve
support for auto.

3. I can open the link.

On Sunday, April 8, 2012, Carlos G Mendioroz wrote:

> Well, I'm on that side (i.e. I like infrastructure links to be fixed in
> whatever speed / duplex they have to be) but this is obviously kind of
> a late thing, given that there is litle "infrastructure" running at these
> speeds nowadays...
>
> But if that was the case, what are the pros to auto ?
>
> (That pdf link was dead to me BTW)
> -Carlos
>
> Ryan West @ 07/04/2012 11:28 -0300 dixit:
>
>> Hard coding is a sure way to cause extra work troubleshooting in the
>> future.
>>
>> Sent from handheld
>>
>> On Apr 7, 2012, at 7:38 AM, "Radioactive Frog"<pbhatkoti_at_gmail.com>
>> wrote:
>>
>> Sundeep - Try duplex and speed setting to "AUTO" on both side.
>>> Most algorithms on newer device/code are written to detect UDLD. In fact
>>> I
>>> was in CiscoLive this year and folks recommend to turn AUTO setting for
>>> fiber port.
>>>
>>> "Auto" does do some magic (compared to hard coding). I still see a lot of
>>> old administrator telling me to do manual. Why would one do it manual if
>>> sees no runt, fcs erros and late collisions?
>>>
>>> Thats, beside the point but;
>>>
>>> You may have to read this nice paper written ( a bit old but still
>>> helpful,
>>> written way back in 2004).
>>> Most people think - Coding duplex and speed manually is the "ANSWER" to
>>> everything.
>>> That is not entirely true :)
>>>
>>> http://www.sun.com/blueprints/**0704/817-7526.pdf<http://www.sun.com/blueprints/0704/817-7526.pdf>
>>>
>>> HTH
>>> frog
>>>
>>> On Fri, Apr 6, 2012 at 12:37 AM, sundeep sadhwani<
>>> sundeep.sadhwani_at_gmail.com> wrote:
>>>
>>> I am probably thinkin of goin with bfd.
>>>> On Apr 5, 2012 10:33 PM, "Narbik Kocharians"<narbikk_at_gmail.com> wrote:
>>>>
>>>>
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> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina

Blogs and organic groups at http://www.ccie.net
Received on Sun Apr 08 2012 - 11:57:33 ART