Re: CEF disabling in the LAB devices

I think Darby made a good point. I don't see the problem with disabling
route-cache on an interface to troubleshoot. You are going to put it back,
right? But we all know how easy it is to start troubleshooting and then get
distracted by something else...

Bryan Bartik
CCIE #23707, CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com

On Tue, May 5, 2009 at 8:05 AM, Scott M Vermillion <
scott_ccie_list_at_it-ag.com> wrote:

> LOL! MPLS was the first thing I thought of when I read the original post
> but I hadn't gotten to the v4.0 thread in my inbox as of the time of writing
> the below response.
>
> In all seriousness, my point was more general and had more to do with not
> encumbering ourselves with a bunch of non-rules and so forth, thereby adding
> to the already high level of stress. But you are absolutely correct Andre
> that forgetting to re-enable CEF starting from 18 October could be
> absolutely deadly to your chances of passing the lab (if it wasn't already),
> at least by the grading scripts (you'd need a very understanding and
> forgiving proctor to bail you out at that point!)...
>
>
>
> On May 5, 2009, at 7:21 , Dufour, Andre wrote:
>
> I might want to also add that turning off CEF might lessen your chances of
>> passing as MPLS has been included in the upcoming version of the lab.... :)
>>
>>
>>
>> Andre
>>
>>
>>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
>> Scott M Vermillion
>> Sent: Tuesday, May 05, 2009 9:11 AM
>> To: Thameem Maranveetil Parambath
>> Cc: Peter Kurdziel; Anantha Subramanian Natarajan; Cisco certification;
>> nobody_at_groupstudy.com
>> Subject: Re: CEF disabling in the LAB devices
>>
>> While I wouldn't personally recommend this just because of potential
>> stability issues (and the risk that you might *introduce* a need for the
>> very troubleshooting you're trying to expedite), just as a general matter of
>> discussion don't forget all that something as easily disabled as CEF can
>> just as easily be re-enabled before punching out for the day (assuming
>> you're not in a blind panic and prone to forgetting!). My own personal view
>> is that some people get WAY too wound up about some of this stuff. I recall
>> prior to my own lab I discussed here my general practice of shutting down
>> all switchports using 'int range' and then enabling them individually as
>> tasks called for their use. You would have thought I committed heresy from
>> some of the responses I got. I was all but assured I would fail the lab on
>> this count alone. I was also assured I would be instantly failed and barred
>> from the lab for saving the initial configs to flash at the start of the
>> day. Well, I can assur!
>> e you that shutting all the ports didn't hurt me any. As for saving to
>> flash, I was made sufficiently paranoid about that not to do it but I've
>> since heard from many, many people who did just so (I read about it in their
>> pass announcements to the list, so what does that tell you?).
>>
>> The lab is stressful enough without overburdening ourselves with non-
>> rules and hearsay. On the other hand, this is most definitely *not* a time
>> for free-styling. The goal should be to earn the number (or the nth IE)
>> when the scripts go walking through our stuff. I wouldn't do anything that
>> would lessen that likelihood and this might be one such case. But on the
>> other hand, the lab is not a china shop and that's worth bearing in mind
>> too, IMHO...
>>
>>
>> On May 4, 2009, at 10:13 , Thameem Maranveetil Parambath wrote:
>>
>> I wont touch anything in the initial config unless there is a
>>> troubleshooting section,
>>>
>>> I believe you will miss points if you remove anything from intial
>>> config.
>>>
>>> Warm Regards,
>>>
>>>
>>>
>>>
>>> Peter Kurdziel <usaccie_at_gmail.com>
>>> Sent by: nobody_at_groupstudy.com
>>> 05/05/2009 07:38 AM
>>> Please respond to
>>> Peter Kurdziel <usaccie_at_gmail.com>
>>>
>>>
>>> To
>>> Anantha Subramanian Natarajan <anantha.natarajan_at_gravitant.com> cc
>>> Cisco certification <ccielab_at_groupstudy.com> Subject
>>> Re: CEF disabling in the LAB devices
>>>
>>>
>>>
>>>
>>>
>>>
>>> I don't know but I personally would not do anything that was not
>>> specifically stated in the lab tasks.
>>>
>>>
>>> On Mon, May 4, 2009 at 11:10 PM, Anantha Subramanian Natarajan <
>>> anantha.natarajan_at_gravitant.com> wrote:
>>>
>>> Hi All,
>>>>
>>>> Assuming disabling CEF would help to run debugs on the LAB
>>>> devices..Is
>>>>
>>> it
>>>
>>>> advisable to disable CEF in the LAB premenanetly and also is there
>>>> any feature required in the LAB would depend on CEF enabling.Kindly
>>>> let me
>>>>
>>> know
>>>
>>>>
>>>> Thanks
>>>>
>>>> Regards
>>>> Anantha Subramanian Natarajan
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
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>>>>
>>>
>>> --
>>> Regards,
>>> Peter Kurdziel
>>>
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