Computer Science > Summary > Cours sur le paramétrage d'un switch CISCO (All)

Cours sur le paramétrage d'un switch CISCO

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I. SOURCES DE CONFIGURATION : Les commutateurs CISCO peuvent être configurés, simultanément et/ou indépendamment, à partir de plusieurs sources. On peut classer ces différentes sources en deu... x catégories : les sources locales et les sources distantes. A. Sources locales : · Le port "Console" : il s'agit d'un port série qui sera relié par un câble série (en général de quelques décimètres), soit à un Terminal Asynchrone, soit à un micro-ordinateur utilisant un émulateur de Terminal Asynchrone comme Hyper Terminal de Microsoft, T-Term Pro, etc. La configuration par défaut est 9600 bits/s, 8 bits/caractère, 1 bit de départ, 1 bit d'arrêt, pas de bit de parité, pas de contrôle de flux. Le port console est indispensable si le commutateur n'a pas de protocole IP configuré. B. Sources distantes : Dès que le protocole IP a été configuré sur le commutateur, il est possible de le configurer à distance à partir d'une station de réseau local. La communication utilise alors l'une des interfaces de réseau du commutateur. · Les terminaux virtuels (VTY) : au moyen d'un émulateur de Terminal Asynchrone comme un client Telnet par exemple. · Les serveurs TFTP : qui permettront de télécharger un fichier de configuration sur le commutateur. · Les stations d'administration de réseau : au moyen d'une station SNMP comme CiscoWorks ou HP Open View. II. MODES DE CONFIGURATION : En dehors de l'utilisation d'un serveur TFTP pour télécharger une configuration existante, les principales sources de configuration des commutateurs sont soit un terminal asynchrone (ou un émulateur) par le port console, soit un client Telnet sur un PC, par l'une des interfaces LAN ou WAN. Les commutateurs CISCO peuvent utiliser plusieurs modes différents parmi lesquels : · Mode EXEC : mode permettant d'accéder à un interpréteur de commandes appelé EXEC. Le mode EXEC dispose de deux niveaux d'accès : · Mode EXEC utilisateur : ne permet qu'un examen limité de la configuration du commutateur. L'invite est "Switch>". · Mode EXEC privilégié : obtenu en tapant la commande "enable" à partir du mode EXEC utilisateur. Il permet l'examen total et la configuration du commutateur, ainsi que l'accès à des mécanismes de tests et de dépannage. L'invite est "Switch#". Pour quitter le mode EXEC privilégié, taper "exit", "end" ou "CTRL+Z". · Mode de configuration globale : obtenu en tapant la commande "configure" à partir du mode EXEC privilégié. L'invite est "Switch(config)#". Ce mode donne accès à des commandes qui concernent l'ensemble du commutateur comme par exemple la commande "hostname" qui affecte un nom au commutateur. Ce nom sera repris par la plupart des invites des différents modes. · Mode de configuration d'interface : …. · Mode de configuration de protocole : … III. PRINCIPALES OPERATIONS : [Show More]

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