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
|
