![]() To avoid the problems associated with redundant links in a switched LAN, STP is implemented on switches to monitor the network topology. : 388 If redundant links are used to connect switches, then switching loops need to be avoided. ![]() : 386 However, this connection configuration creates a switching loop resulting in broadcast radiations and MAC table instability. The need for the Spanning Tree Protocol (STP) arose because switches in local area networks (LANs) are often interconnected using redundant links to improve resilience should one connection fail. Switches with Spanning Tree Protocol implementation in a local area network (LAN) Link aggregation protocols such as LACP will bond two or more links to provide fault tolerance while simultaneously increasing overall link capacity. While STP is still in use today, in most modern networks its primary use is as a loop-protection mechanism rather than a fault tolerance mechanism. STP was originally standardized as IEEE 802.1D but the functionality of spanning tree (802.1D), rapid spanning tree (802.1w), and multiple spanning tree (802.1s) has since been incorporated into IEEE 802.1Q-2014. RSTP was designed to be backwards-compatible with standard STP. RSTP provides significantly faster recovery in response to network changes or failures, introducing new convergence behaviors and bridge port roles to do this. In 2001, the IEEE introduced Rapid Spanning Tree Protocol ( RSTP) as 802.1w. ![]() STP is based on an algorithm that was invented by Radia Perlman while she was working for Digital Equipment Corporation. Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails.Īs the name suggests, STP creates a spanning tree that characterizes the relationship of nodes within a network of connected layer-2 bridges, and disables those links that are not part of the spanning tree, leaving a single active path between any two network nodes. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. The Spanning Tree Protocol ( STP) is a network protocol that builds a loop-free logical topology for Ethernet networks.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |