From: Ali El Moussaoui (mousawi.ali@gmail.com)
Date: Sun Dec 07 2008 - 22:55:45 ARST
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:
>
>> MST has one forwarding delay so it should be "span mst forward 16".... any
>> comments?
>>
>>
>>
>> On Sun, Dec 7, 2008 at 1:27 PM, Jason Madsen <madsen.jason@gmail.com>
>> wrote:
>>
>> > With that wording I would assume we don't have to manipulate max-age
>> etc.
>> > and we should just be able to change the forward-time to 8 seconds.
>> >
>> > mst - spann mst forward 8
>> > pvst - spann vlan x forward 8
>> >
>> > Jason
>> >
>> > On Sun, Dec 7, 2008 at 2:21 PM, Paul Adams <ccie.paul@gmail.com> wrote:
>> >
>> > > Hi GS,
>> > >
>> > > Got a scenario, hope to get some input on it.
>> > >
>> > >
>> > > Sw3 is connected to Sw4, when the ports failed the other port will
>> wait
>> > for
>> > > 16 sec before the interface begins forwarding
>> > >
>> > > ( ports fa 0/3-4) SW3==================SW4 ( ports fa 0/3-4)
>> > >
>> > >
>> > > What configuration are required on SW3 in scenario of mode MST and
>> > scenario
>> > > of Mode PvST
>> > >
>> > >
>> > > Blogs and organic groups at http://www.ccie.net
>> > >
>> > >
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>>
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