Broadcasts don't cross VLAN boundaries. If you have devices and split them into VLANs of devices each, broadcasts only reach hosts instead of . This reduces CPU load on endpoints and frees bandwidth. Networks with too many hosts in one broadcast domain suffer from broadcast storms where traffic multiplies until the network crawls.
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$ curl repovive.com/roadmaps/network-design/switching-and-vlans/vlan-performance-benefits
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