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802 1s Definition: 802.1s is a standard for Multiple Spanning Tree Protocol (MSTP) in computer networking that allows multiple VLANs to be mapped to a single spanning tree instance, reducing the number of spanning tree instances needed in a network.
802.1s, also known as Multiple Spanning Tree Protocol (MSTP), is a standard defined by the Institute of Electrical and Electronics Engineers (IEEE) for network bridge protocols. It enables the creation of multiple spanning tree instances on a network, allowing for the partitioning of a single, physical LAN into multiple separate spanning tree topologies. This segmentation helps optimize network performance and enhance resiliency by providing a more efficient use of network resources and redundancy in case of link failures.