en/enable = Enter config mode
Gi = 1 Gb Twe = 10 Gb
Create VLAN
conf t
vlan VLANID = Create VLAN
name NAME = Name on VLAN
description DESCRIPTION = Description for VLAN
Delete VLAN
conf t
no vlan 600 = Remove VLAN 600
Reset port to default settings
conf t
default interface Gi1/0/xx
Set port in trunk mode and allow all VLAN
conf t
interface Gi1/0/xx
interface range Gi1/0/2
switchport mode trunk
Set port in trunk mode with native VLAN for untagged traffic + only allow certain VLAN through trunk
conf t
interface Gi1/0/xx OR interface range Gi1/0/2
switchport mode trunk
switchport trunk native vlan xxx
switchport trunk allowed vlan xx,xx-xx,xx
Set port in access mode (traffic is tagged when reaching the switch)
conf t
interface INTERFACE
switchport access vlan 3006
switchport mode access
Exclude IP address from been distributed by DHCP
conf t
ip dhcp excluded-address x.x.x.x
Configure a DHCP pool on a VLAN
conf t
ip dhcp pool vlan3006
network 10.3.6.0 255.255.255.0
default-router 10.3.6.1
dns-server 10.1.238.2 10.1.238.3
Show DHCP pool configuration
show ip dhcp pool xxx
Enable or disable one or more interfaces
conf t
interface Gi1/0/xx
interface range Gi1/0/2
shutdown/no shutdown
Show a list of all interfaces
show interface status
Show status on interface
show interface INTERFACE
e.g. show interface Gi1/0/25
Show MAC address for IP addresses
show ip arp
Show MAC address attached to a interface
show mac address-table interface xx1/0/xx
Lists all VLAN
show vlan
Visar current configuration on port
show run int INTERFACE
Show log
show log
Show current leased IP adresses
show ip dhcp binding
Show all interface that have a IP address attached
show ip interface brief
Active built-in DHCP server
service dhcp
Save current configuration
copy running-config startup-config
Show current configuration
show running-config
Show current configuration but include or exclude info
show run | inc/exc/sec XXX