[c-nsp] ip device tracking on IOS-XE

[Pavel Skovajsa]

In case it helps: TAC engineer advised us that a global command "no nmsp
enable" disables the IPDT on all the Cisco switches.

-pavel

On Tue, Aug 9, 2016 at 6:50 PM, Sebastian Beutel <
sebastian.beutel at rus.uni-stuttgart.de> wrote:

> Hi Antoine,
>
> On Tue, Aug 09, 2016 at 09:24:55AM +0200, Antoine Monnier wrote:
> > try this under every interface:
> >  nmsp attachment suppress
> > (yeah I know... does not seem related in anyway to IP device tracking but
> > it does turn it off for us)
> >
> Even after reading the sparse documentation i can't figure out what this
> does. May i aks where did you get the suggestion to this?
>
> >
> > or better, upgrade do a more recent release? it seems 3.6.2aE has it
> > disabled by default (Cat 3850)
> >
> On the particular switch i had 03.07.03E running. Because 03.06.05E is
> currently the suggested release i rolled back to this version and what
> happend? A "no ip device tracking" i global config mode seems to succeed
> but actually does nothing at all: A "sho ip device tracking" makes clear,
> that it's still running.
>
> Best,
>    Sebastian.
>
> > On Mon, Aug 8, 2016 at 7:28 PM, Sebastian Beutel <
> > sebastian.beutel at rus.uni-stuttgart.de> wrote:
> >
> > > Dear list,
> > >
> > >     we ran into trouble with the ip device tracking feature that seems
> to
> > > be
> > > enabled by default on devices running ios-xe. There's allready a
> trouble
> > > shooting guide:
> > >
> > > http://www.cisco.com/c/en/us/support/docs/ios-nx-os-
> software/8021x/116529-
> > > problemsolution-product-00.html
> > >
> > > As ip device tracking is disabled by default on most of our devices
> anyway
> > > (those running ios) my first idea was to just disable it globaly. But
> even
> > > though command line completion and online help knows about "no ip
> device
> > > tracking <cr>" and a global line "ip device tracking" shows up in sho
> run
> > > all, i get an error message saying: "IP device tracking is disabled at
> the
> > > interface level by removing the relevant configs".
> > >
> > > Next thing is, that no "relevant config" appears in "sho run all" on an
> > > interface level. There are only globaly lines. And if i try to do a
> > > "no ip device tracking" on a single interface i get the exact same
> error
> > >  message.
> > >
> > > But it get's wilder: If i use one of the suggestions of the above link
> and
> > > type a "ip device tracking probe delay 10" on just a single interface,
> the
> > > command goes through without an error. The result is, that again no
> > > corresponding configuration shows up on the interface but the global
> line
> > > is
> > > now changed and a "show ip device tracking all" reveals:
> > >
> > > Global IP Device Tracking Probe Delay Interval = 10
> > >
> > > Any ideas how that makes sense? How to disable device tracking
> globaly? For
> > > what use device tracking could be beneficial anyway?
> > >
> > > Best,
> > >    Sebastian.
> > > _______________________________________________
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> > >
>
> --
> Dipl.-Ing. Sebastian Beutel                              tel:
> +49-711-685-64538
> Rechenzentrum Universitaet Stuttgart        http://www.rus.uni-stuttgart.
> de/nks
> Netze und Kommunikationssysteme              Allmandring 30A, D-70550
> Stuttgart
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