Switch Commands - Summary Sheet

Cisco Switch Commands Cheat Sheet (CLI) Cisco switches can be used as plug-and-play devices out of the box but they also offer an enormous amount of features. Although the main purpose of the switch is to provide inter-connectivity in Layer 2 for the connected devices of the network, there are myriad features and functionalities that can be configured on Cisco Switches. In the following Cisco Switch Commands Cheat Sheet, I have tried to include the most important and frequently-used CLI commands that Cisco professionals encounter in real world networks. I know that the list is not exhaustive but I believe that the most useful commands are included. The following commands will work on most Cisco switch models such as 4500, 3850, 3650, 2960, 3560 etc. Setting Host Names TestSwitch#config t2 [Entering into Global Configuration Mode] TestSwitch(config)#hostname MySwitch2 [Enter the hostname of the switch] MySwitch(config)# Setting login credentials: MySwitch(config)#username2admin password2csico12342 [create username and password for logging in to the switch] MySwitch(config)#enable secret2test [Sets encrypted secret password using MD5 algorithm. This is the enable password that you will be asked to enter when trying to enter into “enable” mode] MySwitch(config)#service password-encryption2 [Encrypt all the passwords using MD5] Console Access: MySwitch(config)#line con 02 [Enter into line console mode] MySwitch(config-line)#password2test3 22 [Set password on console] MySwitch(config-line)#login2 [Enable password checking on console] SSH/Telnet Access to the switch: MySwitch(config)#line vty 0 42 [Enters line vty mode for all five virtual ports] MySwitch(config-line)#transport input ssh2 [Enable SSH] MySwitch(config-line)#transport input telnet2 [Enable telnet] Report this ad MySwitch(configiline)#password test32 [Set password] Setting IP Address (To allow remote access to the switch): MySwitch(config)#interface vlan12 [Enters vlan1, the native vlan] MySwitch(config-if)#ip address 192.168.1.2 255.255.255.0 [Set IP address for management] MySwitch(config-if)#exit MySwitch(config)#ip default-gateway 192.168.1.12 [Exit path for the switch – gateway IP] Interface description MySwitch(config)#interface g0/1 MySwitch(config-if)#description2TO SERVER Duplex and Speed Settings MySwitch(config)#interface g0/1 MySwitch(config-if)#speed 102 [Force 10Mbps Speed] MySwitch(config-if)#speed 1002 [Force 100Mbps Speed] MySwitch(config-if)#speed auto [Enable auto speed configuration] MySwitch(config-if)#duplex auto2 [Enable auto duplex configuration on switch port] MySwitch(config-if)#duplex full2 [Enable full duplex configuration on switch port] MySwitch(config-if)#duplex half2 [Enable half duplex configuration on switch port] Setting Web-based interface for configuration (GUI): MySwitch(config)#ip http server2 [Enable HTTP server] MySwitch(config)#ip http port 802 Save current configuration MySwitch(config)#2copy running-config startup-config 2 Verification Commands: TestSwitch#show version [Displays software and hardware information] TestSwitch#show running-config [Displays currently running configuration in DRAM] TestSwitch#show start2 [Displays configuration in NVRAM which will be loaded after reboot] TestSwitch#show flash:2 [Displays Flash memory information] TestSwitch#show boot2 [Displays boot path and image] TestSwitch#show clock2 [Displays the system clock] TestSwitch#show interfaces2 [Displays all interfaces configuration and status of line] TestSwitch#show interface status2 [Displays interface status, vlan, Duplex, Speed and type] TestSwitch#show cdp neighbors2 [Displays information of connected devices] TestSwitch#show cdp neighbors detail2 [Displays detailed information of connected devices] TestSwitch#show mac address-table2 [Displays current MAC address forwarding table and which MAC is learned on each switch port] Resetting the Switch TestSwitch#erase startup-config2 [Delete start-up file from NVRAM] TestSwitch#reload [Reboot the Switch]