Le protocole stp pdf

Dans ce scenario, une liaison est ajoutee entre le pont racine et le pont a. Presentation et configuration du protocole spanning tree. Introduction to spanning tree protocol contemporary controls. The bridge id is made up of the mac address and priority. Reseaux systemes et securite khalid katkout 37,363 views. Le protocole ftp file transfer protocol comment ca marche. Dans ces derniers, les commutateurs mobiles msc, mobile switching center sinterfacent aux. Supposez quil y a deja une connexion indirecte entre le pont a et le pont racine via c d dans le diagramme.

Priority priorite, locale dans le bridge, imposee par l administrateur du reseau. Understanding and configuring spanning tree protocol stp. Le protocole spanning tree supinfo, ecole superieure d. Spanning tree protocol stp was developed before switches were created in order to deal with an issue that occurred with networks that were implementing network bridges. Switches running stp will build a map or topology of the entire switching network. Stp will identify if there are any loops, and then disable or block as many ports. Stream control transmission protocol protocole et services.

Stp switches exchange bridge protocol data units bpdus to build the topology database. Le standard stp est defini dans le document ieee 802. Recommandations pour le suivi therapeutique pharmacologique. Mise en place stp o nous allons dabord regarde quel switch est root. Pour ce faire, faites a faire sur chaque switch clique droit sur le switch onglet cli. Pdf spanningtree protocol stp has nowadays been implemented by most manufacturers in order to avoid loops in bridged networks. Stp will identify if there are any loops, and then disable or block. The basic function of stp is to prevent bridge loops and the broadcast radiation that results from them. Stp path cost automatically changes when a port speedduplex is changed troubleshoot commands command summary related information introduction spanning tree protocol stp is a layer 2 protocol that runs on bridges and switches. Rtp, rtcp, and rtsp internet protocols for realtime.

Apr 23, 2016 le protocole stp khalid katkout reseaux systemes et securite khalid katkout. Lab spanningtree et rapid spanningtree cisco cisco. The spanning tree protocol stp is a network protocol that builds a loopfree logical topology for ethernet networks. The mac address comes from the bridge vendor, but the priority. Presentation du protocole rapid spanning tree stp 802. To do this, it has the possibility to put the ports of a switch in one of these two states state stable. Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails. The spanningtree protocol prevents loops in a redundant network. Rtp, rtcp, and rtsp protocols 283 killer applications on the internet. Stp spanning tree protocol explained with examples. Dans lexemple suivant, on voit quon utilise le rstp mais les voisins en fa09 et fa010 utilise encore stp message p2p peer stp. To turn a mesh architecture into a loopless architecture, stp will have to disable certain links. This tutorial explains what the stp protocol is and how it removes loops from the network. Dec 26, 20 le protocole stp khalid katkout duration.

Spanningtree protocol assigns a root bridge, root ports for nonroot bridges, and designated port segments. The first protocol for spanningtree is the spanningtree protocol spanningtree protocol. Le switch dont le bridgeid est le plus petit remporte lelection du root bridge. Read how do all the operations happen and what are the chief components of the same. Second, when redundant loops are planned on a network, stp deals with remediation of network.

Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails as the name suggests, stp creates a spanning tree that. The main purpose of stp is to ensure that you do not create. Infrastructure devices such as wireless bridges and switches send and receive spanningtree frames, called bridge protocol data units bpdus, at regular. Bpdus are forwarded out all ports every two seconds, to a dedicated. There is a vivid debate among researchers about how to satisfy such multimedia requirements 5. First, it prevents problems caused by loops on a network. The purpose of the spanningtree is to obtain a lan architecture without boucle. In a converged network, ports are either in forwarding or blocking state. The dec proprietary version of stp became the basis for the ieee standard 802. Spanning tree protocol stp determines the least cost path from the root bridge to other nodes in the networks. Spanning tree protocol stp in packet tracer part 1 duration. Le protocole stp khalid katkout reseaux systemes et securite khalid katkout. Besides a mac address for each bridge, each port on each bridge must be identified.

The spanning tree protocol is a link management protocol that is designed to support redundant links while at the same time preventing switching loops in the network. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Abcs of spanning tree protocol contemporary controls. Spanning tree protocol stp is a layer 2 protocol that runs on bridges and switches. Presentation et configuration du protocole spanning tree stp. Understanding and configuring spanning tree protocol stp on. Spanning tree protocol explained step by step duration. Telecharger correction ccna 3 chapitre 2 v5 francais pdf. Dec 09, 2017 spanning tree protocol stp determines the least cost path from the root bridge to other nodes in the networks. Pdf tp packet tracer et routage cisco en pdf cours. To transform a mesh architecture into a loopless architecture, stp will have to disable certain links.