Don't forget "Marcus of Queensbury" rules
T
----- Original Message -----
From: "Chuck Larrieu"
To:
Sent: Thursday, August 16, 2001 8:53 AM
Subject: RE: ccna question [7:15958]
> next generation test questions:
>
> when designing a network, CCNAs should pay particular attention to
>
> a) the 80/20 rule
> b) the 70/30 rule
> c) the 50/50 rule
> d) rule Britannia
>
> at what layer of the OSI model does the 70/30 rule operate?
>
> a) layer 1, because it relates to what bits are where on the wire
> b) layer 2, because the bits are organized into frames, which use mac
> addresses
> c) layer 3, because the 70/30 rule refers to network layer design
> d) layer 7, because a CCNA needs to apply his/her/its study to real world
> situations
>
> the 70/30 rule is
>
> a) the result of extensive study which revealed that the 80/20 rule was in
> error
> b) the absolute measure of good design
> c) the ratio of tab to tip when dining at a fine restaurant
> d) Moises Alou's eyesight metric
>
> hope I get my CCIE before I have to recertify for my CCNA! :->
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Priscilla Oppenheimer
> Sent: Tuesday, August 14, 2001 9:54 AM
> To: [EMAIL PROTECTED]
> Subject: RE: ccna question [7:15958]
>
>
> 70/30? Who made that one up!?! ;-)
>
> There's no exact number of course, but folk wisdom was always 80/20. 80%
of
> traffic stays local and 20% goes to a different part of the network. This
> really got blown out of the water in the last 4-5 years because of
> Intranets with corporate servers located centrally in server farms, a huge
> amount of traffic heading out the door to the Internet, VPN and
> remote-access traffic flowing back in the other way, a lot of AppleTalk
and
> Novell departmental servers being outlawed, etc. Some people have gone so
> far as to say the equation has switched. 20% is local now and 80% is
> non-local.
>
> You would have to check traffic flows and volume on your own network for a
> number you could really use. I have never seen 70/30. Is that really what
> Cisco expects you to learn now? And which do they say is local and which
is
> non-local?
>
> Priscilla
>
> At 12:42 AM 8/14/01, you wrote:
> >is that 80 local 20 non-local? with Cisco revising the number to 70 local
> >and 30 non-local?
> >
> >I refer to Priscilla Oppenheimer's Top Down Network Design ( don't argue
> >design without it :-> ) pp 20-21, the CID book written by Robert Padjen,
pp
> >26-27, and Howard Berkowitz's Designing routing and Switching
Architecture
> > wow! ), pages 35 and 575.
> >
> >Yes by all means learn the Cisco answer for the tests. Just remember that
> >Cisco tests in certain respects are not particularly reflective of the
real
> >world, as at least three eminent real world experts indicate.
> >
> >Chuck
> >
> >
> >
> >-----Original Message-----
> >From: Albert Y. Pak [mailto:[EMAIL PROTECTED]]
> >Sent: Monday, August 13, 2001 9:03 PM
> >To: Chuck Larrieu; [EMAIL PROTECTED]
> >Subject: RE: ccna question [7:15958]
> >
> >
> >The current theory is 80/20. However, to pass CCNA exam, the answer is
> >70/30. ;-)
> >HTH
> >Albert
> >
> >-----Original Message-----
> >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> >Chuck Larrieu
> >Sent: Monday, August 13, 2001 11:31 PM
> >To: [EMAIL PROTECTED]
> >Subject: RE: ccna question [7:15958]
> >
> >
> >much as I hate to pass this one, because every response will hit the
> >moderator's queue (x is a forbidden word), I thought this an honest
> >question and that you were entitled to an answer.
> >
> >80/20 or 70/30 what?
> >
> >are you referring to the old "80 percent of your LAN traffic should be
> >local, and 20 percent should be non-local" rule of good design?
> >
> >I haven't seen the recent Cisco study materials, but from other reading,
I
> >believe that current theory is that you can't go by this rule any longer.
> >Internet access, shared services, centralized server farms, intranets,
all
> >have kinda blown all this local traffic versus non-local traffic
> percentages
> >by the wayside.
> >
> >to transform a phrase of Brian Eno's - the one Scott McNealy probably
> stole.
> >I know I sure did - the world is now the LAN.
> >
> >Chuck
> >
> >Eno: the recording studio is my synthesizer ( circa 1980 )
> >McNealy: the network is the computer ( circa 1996 )
> >Me: the telco network is the central office ( circa 1990 )
> >
> >-----Original Message-----
> >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> >Manjunath Shivaramaiah
> >Sent: Monday, August 13, 2001 7:46 PM
> >To: [EMAIL PROTECTED]
> >Subject: ccna question [7:15958]
> >
> >
> >hi
> >i have a doubt regarding lan design in cisco....It is 80/20 or70/30
> ......in
> >x and 604-407 books it says it is 70/30...pl help me in this
> >regard...
> >I'm taking ccna exam shortly
> >
> >thanks
> >
> >manjunath.s
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
Message Posted at:
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