Re: MST / PVST

From: Jason Madsen (madsen.jason@gmail.com)
Date: Mon Dec 08 2008 - 12:28:25 ARST

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same way I discussed in my first reply:

spann vlan xxxx forward 8

On Sun, Dec 7, 2008 at 11:32 PM, 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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