Catalyst Cheatsheet

• Display information about the ports, including those in private VLANs show interface switchport
• Display summary information for all VLANs show vlan
• Display summary information for all private VLANs show vlan private-vlan
• Display mac addresses show mac address-table or show mac-address-table
• show interface vlan vlan-id [ brief | private-vlan mapping ]
• show vlan id vlan-id example: show vlan id 120
• show interface status err-disabled or show interfaces status err-disabled
• show port security show port-security
• clear errdisable intrfacde gigabitethernet 0/2 vlan
• clear errdisable intrfacde gigabitethernet 0/2 vlan 103
• set port enable
• errdisable recovery cause
• sh int g1/0/1
• shut no shut

  conf t
  int g1/0/1
  shut
  no shut