![]() The main difference between the previous topology is the spine level, where there are more independent switches that are more scalable. The leaf-spine topology is a special case of a two-layer model, designed to build fast, predictable, scalable and efficient data center network infrastructure. ![]() SMBs usually use a simplified two-layer model and for the core layer use a stacked or modular solution. Usually the first option may be a little more costly, because you need specific stacking modules or you are losing some switch ports or you have to buy modular switches.īut the second option may be more complex from a design perspective, bring possible issues (especially in troubleshooting) and be less efficient. Using multiple STP (802.1s), one for each different VLAN, could make the infrastructure more utilized, but can be also more complex.ĭepending on your switches and your needs, you can choose one option or another. Also some switches may be not normally used. Some links will be down and in a standby fashion. This means that the network fabric is not totally used.
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