Common operational misconceptions
Kenneth M. Chipps Ph.D.
chipps at chipps.com
Thu Feb 16 06:00:04 UTC 2012
"ISIS is used in organizations other than ISPs" Any examples you can share
of some other than ISPs?
-----Original Message-----
From: Joel jaeggli [mailto:joelja at bogus.com]
Sent: Wednesday, February 15, 2012 11:58 PM
To: Kenneth M. Chipps Ph.D.
Cc: nanog at nanog.org
Subject: Re: Common operational misconceptions
On 2/15/12 21:04 , Kenneth M. Chipps Ph.D. wrote:
> How widespread would you say the use of IS-IS is?
>
> Even more as to which routing protocols are used, not just in ISPs,
> what percent would you give to the various ones. In other words X
> percent of organizations use OSPS, Y percent use EIGRP, and so on.
Using EIGRP implies your routed IGP dependent infrastructure is a
monoculture. That's probably infeasible without compromise even if you are
largely a Cisco shop.
ISIS is used in organizations other than ISPs.
> -----Original Message-----
> From: Antti Ristimäki [mailto:antti.ristimaki at gmx.com]
> Sent: Wednesday, February 15, 2012 10:47 PM
> To: John Kristoff
> Cc: nanog at nanog.org
> Subject: Re: Common operational misconceptions
>
> "IS-IS is a legacy protocol that nobody uses"
>
>
> 15.02.2012 22:47, John Kristoff kirjoitti:
>> Hi friends,
>>
>> As some of you may know, I occasionally teach networking to college
>> students and I frequently encounter misconceptions about some aspect
>> of networking that can take a fair amount of effort to correct.
>>
>> For instance, a topic that has come up on this list before is how the
>> inappropriate use of classful terminology is rampant among students,
>> books and often other teachers. Furthermore, the terminology isn't
>> even always used correctly in the original context of classful
addressing.
>>
>> I have a handful of common misconceptions that I'd put on a top 10
>> list, but I'd like to solicit from this community what it considers
>> to be the most annoying and common operational misconceptions future
>> operators often come at you with.
>>
>> I'd prefer replies off-list and can summarize back to the list if
>> there is interest.
>>
>> John
>>
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