Re: MST / PVST

From: Zealist Hammad (zealist@gmail.com)
Date: Wed Dec 10 2008 - 04:42:33 ARST

I wonder if we have to add max-age-delay as well for MST as there is max-age
delay also involve in this,

                Spanning-tree mst max-age 6
                Spanning-tree mst forward-time 5

Regards
Zealist

On 12/9/08, Pavel Bykov <slidersv@gmail.com> wrote:
>
> Ali,
> It will work for MST and PVST with Jason'c config.
> If you have doubts, the best way is to lab it out.
>
> On Mon, Dec 8, 2008 at 7:32 AM, Ali El Moussaoui <mousawi.ali@gmail.com
> >wrote:
>
> > if thats true how u satisfy the question in the PVST case?
> >
> > On Sun, Dec 7, 2008 at 5:21 PM, gwood83@gmail.com <gwood83@gmail.com>
> > wrote:
> >
> > > Based upon the question which ultimately states a port has to wait
> > > 16seconds before moving into the forwarding state Jason is correct far
> as
> > > the configuration.
> > > -----Original Message-----
> > > Date: Sunday, December 07, 2008 4:56:57 pm
> > > To: "TCP IP4" <tcp.ip4@gmail.com>
> > > Cc: "Jason Madsen" <madsen.jason@gmail.com>, "Paul Adams" <
> > > ccie.paul@gmail.com>, "Cisco certification" <ccielab@groupstudy.com>
> > > From: "Ali El Moussaoui" <mousawi.ali@gmail.com>
> > > Subject: Re: MST / PVST
> > >
> > > I still do not agree...blocking to learning is not a forwarding delay
> > else
> > > you will have to consider the same for PVST then either solutoin will
> be
> > > correct but not both.
> > >
> > > On Sun, Dec 7, 2008 at 4:15 PM, TCP IP4 <tcp.ip4@gmail.com> wrote:
> > >
> > > > No, 2 state changes are needed for MST. Jason is right.
> > > >
> > > > blocking -> learning: one forward-delay
> > > > learning -> forwarding: two forward-delays
> > > >
> > > > Following is from a test switch with MST0 forward-delay set to 8 when
> > > port
> > > > is unshut:
> > > >
> > > > *Mar 2 06:16:42.483: MST[0]: Gi1/0/5 state change disabled ->
> blocking
> > > > *Mar 2 06:16:42.626: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/5,
> > > > changed state to up
> > > > *Mar 2 06:16:43.632: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> > > > GigabitEthernet1/0/5, changed state to up
> > > > *Mar 2 06:16:50.486: MST[0]: Gi1/0/5 state change blocking ->
> learning
> > > > *Mar 2 06:16:58.489: MST[0]: Gi1/0/5 state change learning ->
> > forwarding
> > > >
> > > >
> > > > On Sun, Dec 7, 2008 at 3:16 PM, Ali El Moussaoui <
> > mousawi.ali@gmail.com
> > > >wrote:
> >
> >
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> Pavel Bykov
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