Cisco . Networks
CCNA basic switch configuration commands
On January 14, 2012 by TechTipsCisco basic configuration commands (CCNA)
Command | descriptions |
switch>? | The ? works here the same as in a router Used to get the list of all available commands |
switch>enable | User mode, same as a router |
switch# | Privileged mode |
switch#disable | Leaves privileged mode |
switch>exit | Leaves user mode |
switch#show version | Displays information about software and hardware. |
switch#show flash: | Displays information about flash memory (will work only for the 2900/2950 series). |
switch#show mac-address-table | Displays the current MAC address forwarding table. |
switch#show running-config | Displays the current configuration in DRAM. |
switch#show startup-config | Displays the current configuration in NVRAM. |
switch#show vlan | Displays the current VLAN configuration. |
switch#show interfaces | Displays the interface configuration and status of line: up/up, up/down, admin down. |
switch#show interface vlan1 | Displays setting of virtual interface VLAN 1, the default VLAN on the switch. |
To Reset Switch Configuration | |
Switch#delete flash:vlan.dat | Removes the VLAN database from flash memory. |
Delete filename [vlan.dat]? | Press Enter |
Delete flash:vlan.dat? [confirm] | Press Enter |
Switch#erase startup-config | Erases the file from NVRAM. |
Switch#reload | Restarts the switch. |
To Set Host Names | |
Switch#configure terminal | Moves to global configuration mode |
Switch(config)#hostname Switch1 | Creates a locally significant host name of the switch. This is the same command as the router. |
Switch1(config)# | |
To Set Passwords | |
Switch(config)#enable password vinita | Sets the enable password to vinita |
Switch(config)#enable secret nikki | Sets the encrypted secret password to nikki |
Switch(config)#line console 0 | Enters line console mode |
Switch(config-line)#login | Enables password checking |
Switch(config-line)#password vinita | Sets the password to vinita |
Switch(config-line)#exit | Exits line console mode |
Switch(config-line)#line vty 0 4 | Enters line vty mode for all five virtual ports |
Switch(config-line)#login | Enables password checking |
Switch(config-line)#password vinita | Sets the password to vinita |
Switch(config-line)#exit | Exits line vty mode |
Switch(config)# | |
To Set IP Addresses and Default Gateways | |
Switch(config)#interface vlan1 | Enters the virtual interface for VLAN 1, the default VLAN on the switch |
Switch(config-if)#ip address 192.168.0.10 255.255.255.0 | Sets the IP address and netmask to allow for remote access to the switch |
Switch(config-if)#exit | |
Switch(config)#ip default-gateway 192.168.0.5 | Allows IP information an exit past the local network |
To Set Interface Descriptions | |
Switch(config)#interface fastethernet 0/1 | Enters interface configuration mode |
Switch(config-if)#description Finance VLAN | Adds a description of the interface |
To Set Duplex Operation | |
Switch(config)#interface fastethernet 0/1 | Moves to interface configuration mode |
Switch(config-if)#duplex full | Forces full-duplex operation |
Switch(config-if)#duplex auto | Enables auto-duplex config |
Switch(config-if)#duplex half | Forces half-duplex operation |
To Set Operation Speed | |
Switch(config)#interface fastethernet 0/1 | |
Switch(config-if)#speed 10 | Forces 10-Mbps operation |
Switch(config-if)#speed 100 | Forces 100-Mbps operation |
Switch(config-if)#speed auto | Enables autospeed configuration |
MAC Address Table | |
switch#show mac address-table | Displays current MAC address forwarding table |
switch#clear mac address-table | Deletes all entries from current MAC address forwarding table |
switch#clear mac address-table dynamic | Deletes only dynamic entries from table |
- 3G
- Adobe Acrobat
- Apple
- Avaya
- Backup
- Backup
- BES Server
- Bitlocker
- Blackberry
- Cisco
- Control Guard
- ControlGuard
- Data Recovery
- Desktop
- Document Template
- Documents
- Email Template
- Enterprise Services
- Exchange
- Fixes
- FoxIT
- General
- Google+
- Guides
- Hardware
- Headset
- Helpdesk
- Home Assistant
- Home Automation
- IIS7
- Information
- Java
- KeyLogger
- Laptop
- Log Off
- Logon
- Mobile
- Mobile / 3G
- Multifunction Printers
- Networks
- Objectives and KPI's
- Operating Systems
- OSX
- Outlook 2007
- Outlook 2010
- PGP Encryption
- Phishing
- Port/Device Control
- Powershell
- Printers & Imaging
- Robocopy
- RSA Security Console
- Scripting
- Security
- Social Media
- Software
- Spiceworks
- Support Apps
- Teamviewer
- Teamviewer
- Troubleshooting
- Two-Step Verification
- Virtualization
- VoIP
- VPN
- Web and Internet
- Windows
- WordPress
- Workstation
- XAMPP – Apache
address automatic complete Avaya Backup basic Blackberry Blackberry Enterprise Server CCNA cisco commands config configuration Desktop Support email Email Signature Email Template Error Exchange Facebook Factory Defaults feature file Fix How to KPI Laptop Microsoft Office Outlook 2007 Microsoft Outlook Outlook Outlook 2007 Outlook 2010 password security Phishing Phishing Scams router S.M.A.R.T Security start Startup/Shutdown Template Tips troubleshooting windows Windows 7 Windows XP