Commands for managing of Cisco 2960G/S and 2924XL switches

Add user

config terminal
username <USERNAME> privilege 15 password <PASSWORD>
enable secret <PASSWORD>
!
line vty 0 15
login local
exit
exit
copy running-config startup-config

Ports and VLANs status

show interface
show interface status
show interface summary
show vlan

Add port to VLAN

configure terminal
interface FastEthernet 0/1
switchport access vlan 15
exit
copy running-config startup-config

Add IP to a VLAN interface

configure terminal
interface vlan <VLAN-ID>
ip address 10.42.42.<XX> 255.255.255.0
exit
copy running-config startup-config

Restore a port that has been err-disabled

First, check which port has been err-disabled:

show interface status
show interface Gi0/10

Then enable it again:

enable
configure terminal
interface Gi0/10
shutdown
end
write
enable
configure terminal
interface Gi0/10
no shutdown
end
write