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jsw at inconcepts

Feb 15, 2012, 4:10 PM


Views: 2145
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Re: Common operational misconceptions [In reply to]

On Wed, Feb 15, 2012 at 3:47 PM, John Kristoff <jtk [at] cymru> wrote:
> I have a handful of common misconceptions that I'd put on a top 10 list,

By your classful addressing example, it sounds like these students are
what most nanog posters would consider to be entry-level.

RFC1918 is misused a lot by entry-level folks, most seem not to know
about 172.16.0.0/12

I think students should be able to learn how "traceroute" actually
works, which I have found, is a lot easier to teach as a conceptual
lesson than by just telling them "maybe the problem is in the return
path" without giving them any understanding of how or why.

MTU, Path MTU Detection, and MSS

NxGE isn't a serial 4Gbps link, and why this is so important

On the other hand, more than half of the CCIEs I have worked with are
clueless about all of the above. :-/
--
Jeff S Wheeler <jsw [at] inconcepts>
Sr Network Operator  /  Innovative Network Concepts

Subject User Time
Common operational misconceptions jtk at cymru Feb 15, 2012, 12:47 PM
    Re: Common operational misconceptions bhmccie at gmail Feb 15, 2012, 12:57 PM
    RE: Common operational misconceptions chipps at chipps Feb 15, 2012, 1:10 PM
        Re: Common operational misconceptions mark at pcinw Feb 15, 2012, 1:26 PM
    Re: Common operational misconceptions dwhite at olp Feb 15, 2012, 1:52 PM
        Re: Common operational misconceptions bhmccie at gmail Feb 15, 2012, 2:09 PM
            Re: Common operational misconceptions jbates at brightok Feb 15, 2012, 5:20 PM
    Re: Common operational misconceptions tias at netnod Feb 15, 2012, 1:59 PM
        Re: Common operational misconceptions lists at quux Feb 17, 2012, 9:37 AM
            Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 9:41 AM
    Re: Common operational misconceptions bicknell at ufp Feb 15, 2012, 2:06 PM
        Re: Common operational misconceptions dougb at dougbarton Feb 15, 2012, 2:14 PM
            Re: Common operational misconceptions marka at isc Feb 15, 2012, 5:32 PM
    Re: Common operational misconceptions cra at WPI Feb 15, 2012, 2:36 PM
        Re: Common operational misconceptions cabo at tzi Feb 15, 2012, 2:49 PM
            Re: Common operational misconceptions mike.lyon at gmail Feb 15, 2012, 2:53 PM
            Re: Common operational misconceptions phil at cluestick Feb 15, 2012, 6:27 PM
        Re: Common operational misconceptions tkapela at gmail Feb 15, 2012, 2:51 PM
    Re: Common operational misconceptions rsk at gsp Feb 15, 2012, 2:52 PM
        Re: Common operational misconceptions chris at ctcampbell Feb 16, 2012, 2:26 AM
    Re: Common operational misconceptions cra at WPI Feb 15, 2012, 3:02 PM
        Re: Common operational misconceptions jeff-kell at utc Feb 15, 2012, 3:18 PM
    Re: Common operational misconceptions algold at lncc Feb 15, 2012, 3:23 PM
    Re: Common operational misconceptions jsw at inconcepts Feb 15, 2012, 4:10 PM
    Re: Common operational misconceptions ler762 at gmail Feb 15, 2012, 4:17 PM
    Re: Common operational misconceptions mohta at necom830 Feb 15, 2012, 4:19 PM
        RE: Common operational misconceptions nathan at atlasnetworks Feb 15, 2012, 4:55 PM
        Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 6:25 PM
    Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 4:23 PM
        Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 4:31 PM
    Re: Common operational misconceptions michael at rancid Feb 15, 2012, 4:46 PM
        Re: Common operational misconceptions jeroen at mompl Feb 18, 2012, 1:22 AM
        Re: Common operational misconceptions mukom.tamon at gmail Mar 3, 2012, 12:33 AM
    Re: Common operational misconceptions dlc at lampinc Feb 15, 2012, 5:13 PM
    Re: Common operational misconceptions meirea at charterschoolit Feb 15, 2012, 6:07 PM
    Re: Common operational misconceptions shortdudey123 at gmail Feb 15, 2012, 6:12 PM
    Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 6:16 PM
        Re: Common operational misconceptions marka at isc Feb 15, 2012, 7:12 PM
            Re: Common operational misconceptions mohta at necom830 Feb 15, 2012, 7:24 PM
                Re: Common operational misconceptions w3yni1 at gmail Feb 15, 2012, 7:26 PM
                Re: Common operational misconceptions marka at isc Feb 15, 2012, 8:27 PM
                    Re: Common operational misconceptions mohta at necom830 Feb 15, 2012, 10:11 PM
            Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 8:43 PM
            Re: Common operational misconceptions sthaug at nethelp Feb 16, 2012, 4:01 AM
                Re: Common operational misconceptions marka at isc Feb 16, 2012, 5:51 AM
                    Re: Common operational misconceptions jeroen at unfix Feb 16, 2012, 6:01 AM
                        Re: Common operational misconceptions marka at isc Feb 16, 2012, 6:50 AM
            Re: Common operational misconceptions regnauld at nsrc Feb 16, 2012, 5:44 AM
                Re: Common operational misconceptions marka at isc Feb 16, 2012, 6:28 AM
                    Re: Common operational misconceptions regnauld at nsrc Feb 16, 2012, 8:53 AM
                        Re: Common operational misconceptions marka at isc Feb 16, 2012, 12:22 PM
                        Re: Common operational misconceptions daniel at fx Feb 16, 2012, 1:23 PM
        Re: Common operational misconceptions owen at delong Feb 15, 2012, 11:45 PM
            Re: Common operational misconceptions prt at prt Feb 16, 2012, 12:21 AM
    Re: Common operational misconceptions antti.ristimaki at gmx Feb 15, 2012, 8:47 PM
        RE: Common operational misconceptions chipps at chipps Feb 15, 2012, 9:04 PM
            Re: Common operational misconceptions joelja at bogus Feb 15, 2012, 9:57 PM
                RE: Common operational misconceptions chipps at chipps Feb 15, 2012, 10:00 PM
                    Re: Common operational misconceptions aftab.siddiqui at gmail Feb 15, 2012, 10:20 PM
                    Re: Common operational misconceptions shuque at upenn Feb 16, 2012, 6:08 AM
                        Re: Common operational misconceptions owen at delong Feb 16, 2012, 11:25 AM
        Re: Common operational misconceptions mwlucas at blackhelicopters Feb 16, 2012, 4:03 AM
    Re: Common operational misconceptions owen at delong Feb 15, 2012, 11:34 PM
        Re: Common operational misconceptions michael at rancid Feb 16, 2012, 2:41 PM
            Re: Common operational misconceptions cabo at tzi Feb 16, 2012, 10:39 PM
    Re: Common operational misconceptions leigh.porter at ukbroadband Feb 16, 2012, 12:32 AM
    Re: Common operational misconceptions tim at pelican Feb 16, 2012, 1:58 AM
    Re: Common operational misconceptions lykinsbd at gmail Feb 16, 2012, 4:11 AM
    Re: Common operational misconceptions jared at puck Feb 16, 2012, 4:31 AM
    Re: Common operational misconceptions davidianwalker at gmail Feb 16, 2012, 5:01 AM
    Re: Common operational misconceptions owen at delong Feb 16, 2012, 5:03 AM
        Re: Common operational misconceptions rps at maine Feb 16, 2012, 5:17 AM
        Re: Common operational misconceptions jared at puck Feb 16, 2012, 5:25 AM
    Re: Common operational misconceptions jtk at cymru Feb 16, 2012, 5:12 AM
    Re: Common operational misconceptions jeff-kell at utc Feb 16, 2012, 5:27 AM
        Re: Common operational misconceptions cra at WPI Feb 16, 2012, 6:01 AM
    Re: Common operational misconceptions regnauld at nsrc Feb 16, 2012, 5:36 AM
    Re: Common operational misconceptions jeff-kell at utc Feb 16, 2012, 5:57 AM
    Re: Common operational misconceptions ttauber at 1-4-5 Feb 16, 2012, 7:51 AM
    Re: Common operational misconceptions jbates at brightok Feb 16, 2012, 9:08 AM
        Re: Common operational misconceptions cabo at tzi Feb 16, 2012, 10:30 PM
            Re: Common operational misconceptions paul at paulgraydon Feb 16, 2012, 10:50 PM
                Re: Common operational misconceptions cabo at tzi Feb 16, 2012, 11:05 PM
                    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 6:29 AM
                        Re: Common operational misconceptions jared at puck Feb 17, 2012, 7:36 AM
                        Re: Common operational misconceptions jtk at cymru Feb 17, 2012, 8:04 AM
                            Re: Common operational misconceptions jbates at brightok Feb 17, 2012, 8:09 AM
                    Re: Common operational misconceptions jbates at brightok Feb 17, 2012, 7:14 AM
                Re: Common operational misconceptions bicknell at ufp Feb 17, 2012, 6:29 AM
                    RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 6:51 AM
                    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 6:52 AM
                        RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 7:01 AM
                        RE: Common operational misconceptions meirea at charterschoolit Feb 17, 2012, 7:12 AM
                        Re: Common operational misconceptions gary.buhrmaster at gmail Feb 17, 2012, 9:00 AM
                        Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:35 AM
                            Re: Common operational misconceptions james.cutler at consultant Feb 17, 2012, 12:45 PM
                        Re: Common operational misconceptions rps at maine Feb 17, 2012, 11:42 AM
                    RE: Common operational misconceptions meirea at charterschoolit Feb 17, 2012, 6:57 AM
                    Re: Common operational misconceptions paul at paulgraydon Feb 17, 2012, 10:32 AM
                        RE: Common operational misconceptions chipps at chipps Feb 17, 2012, 10:43 AM
                            Re: Common operational misconceptions paul at paulgraydon Feb 17, 2012, 11:56 PM
                                Re: Common operational misconceptions tvhawaii at shaka Feb 18, 2012, 12:55 AM
                                    Re: Common operational misconceptions paul at paulgraydon Feb 18, 2012, 10:55 AM
                                        RE: Common operational misconceptions gbonser at seven Feb 18, 2012, 12:36 PM
                                        Re: Common operational misconceptions tvhawaii at shaka Feb 18, 2012, 1:15 PM
            Re: Common operational misconceptions lowen at pari Feb 17, 2012, 11:45 AM
    Re: Common operational misconceptions michael at rancid Feb 16, 2012, 11:10 AM
        Re: Common operational misconceptions streiner at cluebyfour Feb 18, 2012, 12:41 PM
    RE: Common operational misconceptions dholmes at mwdh2o Feb 16, 2012, 11:41 AM
    Re: Common operational misconceptions andreas at livejournalinc Feb 16, 2012, 12:27 PM
    Re: Common operational misconceptions web at typo Feb 16, 2012, 12:35 PM
        Re: Common operational misconceptions streiner at cluebyfour Feb 16, 2012, 1:02 PM
        Re: Common operational misconceptions ttauber at 1-4-5 Feb 16, 2012, 1:40 PM
    Re: Common operational misconceptions keegan.holley at sungard Feb 16, 2012, 1:18 PM
    Re: Common operational misconceptions marka at isc Feb 16, 2012, 2:40 PM
    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 5:11 PM
        Re: Common operational misconceptions josh.hoppes at gmail Feb 16, 2012, 5:16 PM
        Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 16, 2012, 5:43 PM
            Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 6:07 PM
                Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 16, 2012, 8:58 PM
                    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 10:24 PM
                        Re: Common operational misconceptions owen at delong Feb 16, 2012, 10:41 PM
                            Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 11:03 PM
        Re: Common operational misconceptions owen at delong Feb 16, 2012, 8:48 PM
            RE: Common operational misconceptions gbonser at seven Feb 16, 2012, 9:42 PM
            Re: Common operational misconceptions thegameiam at yahoo Feb 17, 2012, 7:20 AM
    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 5:37 PM
    Re: Common operational misconceptions rms2176 at columbia Feb 16, 2012, 6:35 PM
    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 10:54 PM
        RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 8:10 AM
    Re: Common operational misconceptions sclark at netwolves Feb 17, 2012, 7:18 AM
        Re: Common operational misconceptions jbates at brightok Feb 17, 2012, 7:48 AM
            Re: Common operational misconceptions mike.lyon at gmail Feb 17, 2012, 8:46 AM
                Re: Common operational misconceptions mikea at mikea Feb 17, 2012, 9:00 AM
                    Re: Common operational misconceptions jra at baylink Feb 17, 2012, 10:26 AM
        Re: Common operational misconceptions khelms at ispalliance Feb 17, 2012, 8:23 AM
            RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 10:28 AM
        Re: Common operational misconceptions josmon at rigozsaurus Feb 17, 2012, 9:33 AM
            Re: Common operational misconceptions jjones at danrj Feb 17, 2012, 9:47 AM
    Re: Common operational misconceptions jra at baylink Feb 17, 2012, 7:33 AM
    Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 7:44 AM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 7:46 AM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 7:51 AM
        RE: Common operational misconceptions meirea at charterschoolit Feb 17, 2012, 8:13 AM
        Re: Common operational misconceptions marcelplug at gmail Feb 17, 2012, 9:01 AM
        Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:49 AM
            Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 17, 2012, 11:04 AM
                Re: Common operational misconceptions bonomi at mail Feb 17, 2012, 11:18 AM
                    Re: Common operational misconceptions gary.buhrmaster at gmail Feb 17, 2012, 11:29 AM
                Re: Common operational misconceptions tperrine at scea Feb 17, 2012, 11:19 AM
                    Re: Common operational misconceptions randy at psg Feb 17, 2012, 11:44 AM
                Re: Common operational misconceptions owen at delong Feb 17, 2012, 5:52 PM
                    Re: Common operational misconceptions mysidia at gmail Feb 17, 2012, 9:09 PM
            Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 11:16 AM
                Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 11:24 AM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 7:51 AM
        Re: Common operational misconceptions w3yni1 at gmail Feb 17, 2012, 7:56 AM
    Re: Common operational misconceptions eugen at leitl Feb 17, 2012, 8:36 AM
        Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 9:16 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 9:31 AM
    Re: Common operational misconceptions lists at quux Feb 17, 2012, 9:35 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 9:36 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 9:51 AM
    Re: Common operational misconceptions jeff-kell at utc Feb 17, 2012, 9:55 AM
        RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 10:06 AM
    Re: Common operational misconceptions jared at puck Feb 17, 2012, 10:04 AM
    Re: Common operational misconceptions bicknell at ufp Feb 17, 2012, 10:25 AM
        Re: Common operational misconceptions lists at quux Feb 17, 2012, 10:35 AM
    Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:45 AM
    Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:59 AM
        Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 11:17 AM
        Re: Common operational misconceptions lists at quux Feb 17, 2012, 11:21 AM
            RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 11:26 AM
            Re: Common operational misconceptions jlewis at lewis Feb 26, 2012, 4:34 PM
    Re: Common operational misconceptions surfer at mauigateway Feb 17, 2012, 11:18 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 11:35 AM
    Re: Common operational misconceptions owen at delong Feb 17, 2012, 11:42 AM
    Re: Common operational misconceptions todd at borked Feb 17, 2012, 11:46 AM
    RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 11:47 AM
    Re: Common operational misconceptions gary.buhrmaster at gmail Feb 17, 2012, 12:25 PM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 12:26 PM
        Re: Common operational misconceptions rps at maine Feb 17, 2012, 12:40 PM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 12:48 PM
    Re: Common operational misconceptions rms2176 at columbia Feb 17, 2012, 5:36 PM
    Re: Common operational misconceptions techie at w6yx Feb 17, 2012, 11:19 PM
        Re: Common operational misconceptions mysidia at gmail Feb 20, 2012, 6:07 PM
    Re: Common operational misconceptions mohta at necom830 Feb 18, 2012, 3:31 AM
        Re: Common operational misconceptions owen at delong Feb 19, 2012, 4:24 PM
            Re: Common operational misconceptions jgreco at ns Feb 19, 2012, 5:07 PM
                Re: Common operational misconceptions marka at isc Feb 19, 2012, 5:21 PM
                    Re: Common operational misconceptions owen at delong Feb 20, 2012, 2:04 AM
            Re: Common operational misconceptions mysidia at gmail Feb 19, 2012, 5:09 PM
            Re: Common operational misconceptions mohta at necom830 Feb 19, 2012, 6:17 PM
                Re: Common operational misconceptions aj at jonesy Feb 19, 2012, 8:09 PM
                    Re: Common operational misconceptions mysidia at gmail Feb 19, 2012, 8:40 PM
            Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 20, 2012, 5:33 AM
    Re: Common operational misconceptions alvarezp at alvarezp Feb 19, 2012, 5:33 PM
    Re: Common operational misconceptions kauer at biplane Feb 19, 2012, 6:06 PM
    Re: Common operational misconceptions mohta at necom830 Feb 19, 2012, 10:42 PM
        Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 20, 2012, 6:42 AM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 8:47 AM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 2:53 PM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 3:27 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 4:16 PM
        Re: Common operational misconceptions smb at cs Feb 20, 2012, 5:40 PM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 6:11 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 6:42 PM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 7:08 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 7:27 PM
        Re: Common operational misconceptions smb at cs Feb 20, 2012, 7:44 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 7:37 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 8:01 PM
    Re: Common operational misconceptions lowen at pari Feb 21, 2012, 4:24 AM
        Re: Common operational misconceptions bonomi at mail Feb 21, 2012, 4:46 AM
    Re: Common operational misconceptions nanog at vanwesten Feb 21, 2012, 6:32 AM
    Re: Common operational misconceptions jra at baylink Feb 21, 2012, 6:56 AM
    Re: Common operational misconceptions michael at rancid Mar 3, 2012, 10:55 AM

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