From: Raghav Bhargava (raghavbhargava12@gmail.com)
Date: Thu Jan 15 2009 - 01:53:23 ARST
ok got it..thanks all...
On Wed, Jan 14, 2009 at 7:50 PM, Jason Madsen <madsen.jason@gmail.com> wrote:
> exactly like Jonathan stated. it depends on which switch is the root for
> the particular vlan(s). if you're only using the 2 switches, then pick one
> as root, set your port-priority on that device or use cost on the other.
> either use port-priority "upstream" or use cost "downstream".
>
> Jason
>
> On Wed, Jan 14, 2009 at 8:45 PM, Raghav Bhargava
> <raghavbhargava12@gmail.com> wrote:
>>
>> well here's the topology:-
>>
>> SW1 <---> SW2
>>
>> the trunks are on port 19,20 and we are using dot1q with MST. Vlans
>> 1,2,3 are configured on both of them.
>> Now I want interface 19 to carry vlans 1,2 and interface 20 to carry vlan
>> 3.
>>
>> So my question is again do i need to configure the spanning-tree mst 1
>> port-priority on both the switches or just one will work.
>>
>> thanks
>> /raghav
>>
>> On Wed, Jan 14, 2009 at 7:42 PM, Jonathan Greenwood II
>> <gwood83@gmail.com> wrote:
>> > It depends on which switch is the (root) for the particular instance in
>> > question and what are you trying to manipulate far as which ports are
>> > forwarding and blocking. I would spend sometime reviewing STP because
>> > the
>> > concept doesn't change whether your using STP/MSTP/RSTP on modifying
>> > port-priority or cost.
>> >
>> > HTH
>> >
>> > Jonathan
>> >
>> > On Wed, Jan 14, 2009 at 7:28 PM, Jason Madsen <madsen.jason@gmail.com>
>> > wrote:
>> >>
>> >> configure spanning-tree (MST or any other...) on the "upstream" device.
>> >>
>> >> Jason
>> >>
>> >> On Wed, Jan 14, 2009 at 7:39 PM, Raghav Bhargava
>> >> <raghavbhargava12@gmail.com
>> >> > wrote:
>> >>
>> >> > Hi Experts,
>> >> >
>> >> > When configuring port priority for specific instances in MST between
>> >> > 2
>> >> > Switches which have a dot1q trunk between them .
>> >> > Do we need to configure the command spanning-tree mst 1 port-priority
>> >> > x on both the switches or just 1 will work??
>> >> >
>> >> > --
>> >> > Warm Regards
>> >> > Raghav
>> >> >
>> >> >
>> >> > Blogs and organic groups at http://www.ccie.net
>> >> >
>> >> >
>> >> > _______________________________________________________________________
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>> >>
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>> >> _______________________________________________________________________
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>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>>
>>
>>
>> --
>> Warm Regards
>> Raghav
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>>
>>
>>
>>
>>
>
>
-- Warm Regards RaghavBlogs and organic groups at http://www.ccie.net
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