When mapping VLANs onto the new hierarchical network design, keep these parameters in mind.
■ Examine the subnetting scheme that has been applied to the network and associate a VLAN to each subnet.
■ Configure routing between VLANs at the distribution layer using multilayer switches.
■ Make end-user VLANs and subnets local to a specific switch block.
■ Ideally, limit a VLAN to one access switch or switch stack. However, it may be necessary to extend a VLAN across multiple access switches within a switch block to support a capability such as wireless mobility.
© 2006 Cisco Systems, Inc. Defining VLANs 2-13
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