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Commandes de base

Passer en mode privilégié 

Par défaut, on entre en privilège 1 qui donne accès à des commandes très basiques.

switch>show privilege
Current privilege level is 1
switch>

Passer en privilège maximum 15 :

switch>
switch>enable
switch#sh pri
Current privilege level is 15
switch#
Passer en mode de configuration et le quitter
switch#
switch#configure terminal
switch(config)#
switch(config)#exit
switch#
Sauvegarder la configuration
switch#copy running-config startup-config

La startup-config se trouve dans la nvram alors que la running-config se trouve dans la ram. En copiant la configuration de la running-config dans la startup-config, on écrit la conf dans la mémoire non volatile.

ou

switch#write memory
Afficher la configuration
switch#show running-config
Redémarrer le switch
switch#reload
Renommer le switch
switch#
switch#conf t
switch(config)#hostname Maquette
Maquette(config)#
Attribuer une adresse IP
switch#
switch#conf t
switch(config)#interface vlan1
switch(config-if)#ip address 192.168.1.100 255.255.255.0
switch(config-if)#exit
switch(config)#exit
switch#
Passerelle par défaut
switch(config)#ip default-gateway 192.168.1.1
Serveur DNS
switch(config)#ip name-server 192.168.1.1
Supprimer la configuration
switch#erase startup-config
Pour compléter automatiquement une commande, utiliser la touche TAB
switch(config)#inter
switch(config)#interface
switch(config)#interface gig
switch(config)#interface GigabitEthernet0/0
Désactiver le DNS lookup pour ne pas attendre lors d'une mauvaise commande
switch(config)#no ip domain-lookup
Supprimer une ligne ou un paramètre
switch(config)#no vlan
switch(config)#no ntp server 194.2.0.28
switch(config)#no ip address

Ajouter "no" devant la ligne pour l'effacer de la configuration 

Pour afficher l'aide, utiliser le ? après une commande
3750#?
Exec commands:
  access-enable    Create a temporary Access-List entry
  access-template  Create a temporary Access-List entry
  archive          manage archive files
  cd               Change current directory
  clear            Reset functions
  clock            Manage the system clock
  cns              CNS agents
  configure        Enter configuration mode
  connect          Open a terminal connection
  copy             Copy from one file to another
  debug            Debugging functions (see also 'undebug')
  delete           Delete a file
  dir              List files on a filesystem
  disable          Turn off privileged commands
  disconnect       Disconnect an existing network connection
  dot1x            IEEE 802.1X Exec Commands
  enable           Turn on privileged commands
  eou              EAPoUDP
  erase            Erase a filesystem
  ethernet         Ethernet parameters
  exit             Exit from the EXEC
 --More--
Afficher l'état des interfaces
3750#sh ip int brief
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  172.16.3.200    YES NVRAM  up                    up
FastEthernet1/0/1      unassigned      YES unset  up                    up
FastEthernet1/0/2      unassigned      YES unset  down                  down
FastEthernet1/0/3      unassigned      YES unset  down                  down
FastEthernet1/0/4      unassigned      YES unset  down                  down
FastEthernet1/0/5      unassigned      YES unset  down                  down
FastEthernet1/0/6      unassigned      YES unset  down                  down
FastEthernet1/0/7      unassigned      YES unset  down                  down
FastEthernet1/0/8      unassigned      YES unset  down                  down
FastEthernet1/0/9      unassigned      YES unset  down                  down
FastEthernet1/0/10     unassigned      YES unset  down                  down
FastEthernet1/0/11     unassigned      YES unset  down                  down
FastEthernet1/0/12     unassigned      YES unset  down                  down
FastEthernet1/0/13     unassigned      YES unset  down                  down
FastEthernet1/0/14     unassigned      YES unset  down                  down
FastEthernet1/0/15     unassigned      YES unset  down                  down
FastEthernet1/0/16     unassigned      YES unset  down                  down
FastEthernet1/0/17     unassigned      YES unset  down                  down
FastEthernet1/0/18     unassigned      YES unset  down                  down
FastEthernet1/0/19     unassigned      YES unset  down                  down
FastEthernet1/0/20     unassigned      YES unset  down                  down
FastEthernet1/0/21     unassigned      YES unset  down                  down
FastEthernet1/0/22     unassigned      YES unset  down                  down
FastEthernet1/0/23     unassigned      YES unset  up                    up
FastEthernet1/0/24     unassigned      YES unset  up                    up
GigabitEthernet1/0/1   unassigned      YES unset  down                  down
GigabitEthernet1/0/2   unassigned      YES unset  down                  down
GigabitEthernet1/1/1   unassigned      YES unset  down                  down
GigabitEthernet1/1/2   unassigned      YES unset  down                  down
3750#
Inventaire
Switch#show inventory
NAME: "1", DESCR: "ME-C3750-24TE"
PID: ME-C3750-24TE-M   , VID: V07, SN: FDO1521Y24L

NAME: "GigabitEthernet1/1/1", DESCR: "1000BaseSX SFP"
PID:                     , VID:     , SN: OP10G53E1584

NAME: "GigabitEthernet1/1/2", DESCR: "1000BaseSX SFP"
PID:                     , VID:     , SN: H11S478

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