Re: spanning-tree port-priority

just back and found those nice explanations .
Thanks to all of you .

2012/12/12 Joe Astorino <joeastorino1982_at_gmail.com>

> I happen to have created a video on this topic. Feel free to check it
> out. I think it may help you C.H.
>
>
> http://www.youtube.com/watch?v=utpFFXEEFGk&feature=share&list=PL49611626480E0595
>
> On Sun, Dec 9, 2012 at 3:55 PM, C.H. <netsolutions03_at_aol.com> wrote:
> > Lowest port #....
> >
> > On Sun, Dec 9, 2012 at 3:25 PM, marc abel <marcabel_at_gmail.com> wrote:
> >
> >> Ah but if you apply both priority and cost which one wins?
> >>
> >>
> >> On Sun, Dec 9, 2012 at 11:54 AM, marc edwards <renorider_at_gmail.com>
> wrote:
> >>
> >> > Speaking from the switch perspective, we make change on a switch
> >> > upstream that influences the election of the upstream interfaces on
> >> > current switch.
> >> >
> >> > Marc
> >> >
> >> > On Sun, Dec 9, 2012 at 9:51 AM, marc edwards <renorider_at_gmail.com>
> >> wrote:
> >> > > When we talk upstream/downstream, the way I envision is like river.
> >> > > the source of the stream is up. So root would be upstream.
> >> > >
> >> > > You are right that it is downstream interface from that definition.
> >> > >
> >> > > Marc
> >> > >
> >> > > On Sun, Dec 9, 2012 at 9:16 AM, dia.aliou_at_gmail.com <
> >> dia.aliou_at_gmail.com>
> >> > wrote:
> >> > >> Hi,
> >> > >>
> >> > >> The way I remember it easilu is: apply port priority on a port
> going
> >> > away of
> >> > >> the root bridge (downstream) and use port cost on the port going
> >> toward
> >> > the
> >> > >> root bridge.
> >> > >>
> >> > >> HTH
> >> > >>
> >> > >> Aliou
> >> > >>
> >> > >> On 9 Dec 2012 15:58, "marc edwards" <renorider_at_gmail.com> wrote:
> >> > >>
> >> > >> I forgot something and hope this doesn't confuse things.... port
> >> > >> priority has to be upstream of root (or blocked) port and is used
> to
> >> > >> influence the election of the root port on downstream device. HTH
> >> > >> clarify a little more.
> >> > >>
> >> > >> Regards,
> >> > >>
> >> > >> Marc
> >> > >>
> >> > >>
> >> > >> On Sun, Dec 9, 2012 at 6:18 AM, marc edwards <renorider_at_gmail.com>
> >> > wrote:
> >> > >>> It has to be applied on...
> >> >
> >> >
> >> > Blogs and organic groups at http://www.ccie.net
> >> >
> >> >
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> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >> --
> >> Marc Abel
> >> CCIE #35470
> >> (Routing and Switching)
> >>
> >>
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> >
> >
> > Blogs and organic groups at http://www.ccie.net
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> > _______________________________________________________________________
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>
> --
> Regards,
>
> Joe Astorino
> CCIE #24347
> http://astorinonetworks.com
>
> "He not busy being born is busy dying" - Dylan

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Received on Thu Dec 13 2012 - 12:23:27 ART