Re: Nexus network Design - Switching LOOP

TRILL > SPB, if only because TRILL is ahead and is within an open community.

On Tue, Mar 13, 2012 at 2:28 PM, ALL From_NJ <all.from.nj_at_gmail.com> wrote:

> A nice thread and question, good stuff people; I love to learn from you
> all.
>
> As a side note, and you all probably already know but ... Shortest Path
> Bridging (SPB) is the IEEE replacement for STP. Things will get a lot
> easier when SPB is the default on all shipping switches. Given technology
> today, why should we ever have to worry about loops? A lot of this basic
> stuff should just work ...
>
> Some vendors (Cisco and Juni for example) have not fully embraced SPB and
> want to take customers down a proprietary / single vendor path (claim its
> based on standards though ...). From a sales perspective, I really can't
> blame them, they need to protect their install base ...
>
> For this forum, I would suggest to request SPB in all the products you
> deploy ... it solves these problems and also allows interop and multi
> vendors. NANOG had some good intro and videos on SPB if anyone wanted to
> learn more...
>
> HTH,
>
> Andrew Lissitz, CCIE 31840
>
>
>
> On Tue, Mar 13, 2012 at 9:20 AM, jack daniels <jckdaniels12_at_gmail.com
> >wrote:
>
> > Hi,
> >
> > but the ports will be transporting multple vlans.
> >
> > Regards
> >
> >
> > On Tue, Mar 13, 2012 at 6:47 PM, Radioactive Frog <pbhatkoti_at_gmail.com>
> > wrote:
> > > Totally agreed - no need of STP.
> > > VPC is thw way to go
> > > Have not touched Nexus for the last 9 months - is TRILL supported on
> the
> > > latest codes yet?
> > > on edge where you have 2k connected to 3750 - put that port in edge
> mode.
> > >
> > >
> > > On Tue, Mar 13, 2012 at 11:55 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar
> >
> > > wrote:
> > >>
> > >> Yes, so what ?
> > >> As I said, STP is a bad word. You don't have to have STP in your
> design!
> > >> -Carlos
> > >>
> > >> jack daniels @ 13/03/2012 09:49 -0300 dixit:
> > >>
> > >>> Hi Carlos,
> > >>>
> > >>> There is 2K in between which doesn't support STP.
> > >>>
> > >>> Regards
> > >>>
> > >>>
> > >>> On Tue, Mar 13, 2012 at 5:45 PM, Carlos G Mendioroz<tron_at_huapi.ba.ar
> >
> > >>> wrote:
> > >>>>
> > >>>> STP is a bad word in Nexus :)
> > >>>> So you should take a look at VPC!
> > >>>>
> > >>>> Short story: make the two N5Ks behave as one entity to the 3750,
> > >>>> and make a LAG (etherchannel) between them.
> > >>>>
> > >>>> -Carlos
> > >>>>
> > >>>>
> > >>>>
> >
> http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/configuration_guide_c07-543563.html
> > >>>>
> > >>>> jack daniels @ 13/03/2012 08:53 -0300 dixit:
> > >>>>>
> > >>>>>
> > >>>>> Hi Guys,
> > >>>>>
> > >>>>> I have a scenario for which I'm scratching my head since long -
> > please
> > >>>>> help
> > >>>>>
> > >>>>>
> > >>>>> Nexus 5K-1---------Nexus5K-2
> > >>>>> | |
> > >>>>> | |
> > >>>>> Nexus2K-1 Nexus2K-2
> > >>>>> | | Port eth 1/1
> > >>>>> | |
> > >>>>> Cisco 3750-----------------------
> > >>>>>
> > >>>>>
> > >>>>> In this scenario Switching LOOP is getting formed. Only way I'm
> able
> > >>>>> to get rid is shutdown Port eth1/1 on Nexus2K-2. Please help in
> this
> > >>>>> case.
> > >>>>>
> > >>>>> Thanks in anticipation in adavance.
> > >>>>>
> > >>>>> Regards
> > >>>>> Jack
> > >>>>>
> > >>>>>
> > >>>>> Blogs and organic groups at http://www.ccie.net
> > >>>>>
> > >>>>>
> > _______________________________________________________________________
> > >>>>> Subscription information may be found at:
> > >>>>> http://www.groupstudy.com/list/CCIELab.html
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>
> > >>>> --
> > >>>> Carlos G Mendioroz<tron_at_huapi.ba.ar> LW7 EQI Argentina
> > >>
> > >>
> > >> --
> > >> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>
> _______________________________________________________________________
> > >> Subscription information may be found at:
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> >
> >
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> >
> >
> >
> >
>
>
> --
> Andrew Lee Lissitz
> all.from.nj_at_gmail.com
>
>
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-- 
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