From: David Raney (daraneygs@gmail.com)
Date: Sun Mar 29 2009 - 10:56:39 ART
From the DocCD, How a switch or port becomes the root switch or root port
(if priority is the same it uses the lowest MAC address):
http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_sec/configuration/guide/swstp.html#wp1169930
MST uses RSTP for convergence, also from the DocCD:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_sec/configuration/guide/swmstp.html#wp1033176
HTH
On Sun, Mar 29, 2009 at 9:03 AM, Jason Alex <amr.ccie@gmail.com> wrote:
> Dear All,
> The task says
>
>
> Configure all four switches to use the form of STP where STP options such
> as
> UplinkFast and BackboneFast are no longer required. In addition:
>
> - STP parameters for VLANs 1,10,20,30,40,100,200, and 300 should be
> dictated
> by SW1. SW2
>
> should be the secondary root. SW2, SW3, and SW4 should not be root bridge
> for any VLANs.
>
> - The primary and secondary priorities should be at their default values.
>
>
>
> So what is the mode we are going to choose , is it rapid-pvst or mst ?
>
> also what is the meaning of STP paramerters should be dictated by sw1 , is
> it mean that sw1 should be the root ?
>
> also how to make sw1 is the root without modifying the priority ? as i know
> the command "spanning-tree vlan X root primary" modified the priority
>
>
>
> Please Advice
>
>
> Blogs and organic groups at http://www.ccie.net
>
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