On 28/01/2013 23:05, Benny Amorsen wrote:
> Does that actually help? Does a 3560 merge multiple VLANs into a single
> topology if they happen to use the same ports everywhere?

Different varieties of spanning tree do different things:

802.1d / 802.1w RSTP: single topology for all vlans
PVSTP / PV-RSTP: separate topology for each vlan
MST: separate topology for each group of vlans

Nick

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