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VLAN, VTP, DTP, Etherchannel Cheat Sheet by


chann­el-­group 1 mode desirable
Sets a interface into desirable mode
chann­el-­group 1 mode auto
Set a interface into auto mode


switc­hport trunk native vlan <nu­mbe­r>
Sets the native VLAN
chann­el-­group <nu­mbe­r> mode [active | passive ]
Sets port as active or passive.

VLAN Config­uration

vlan <nu­mbe­r>
Creates VLAN with the given number
name <na­me>
Assign a name to the created vlan
switc­hport mode [ access | trunk]
Sets an interface to access or trunk mode
switc­hport access vlan <nu­mbe­r>
Adds a vlan onto an interface

First Config­uration


VTP Config­uration

vtp domain <do­mai­n>
Sets VTP domain
vtp password <pa­ssw­ord­>
Sets the password for the VTP
vtp mode [server | client | transp­arent]
Sets the device mode

Verifi­cation commands

show ip interface brief
Overview of all interfaces
show ip route
Show all routes
show vlan brief
Overview of all vlans and the ports in it
show interface trunk
Shows all trunks
tracert [ip]
Show if hops to an ip are correct
show vtp status
Verifi­cation for VTP
show etherc­hannel summary
Shows all etherc­annels
show interfaces trunk
Verify existing trunks


switc­hport mode dynamic desirable
Creates a dynamic trunk
switc­hport mode trunk
Creates a static trunk
switc­hport mode dynamic auto
Makes the interface able to convert the link to a trunk link
switc­hport nonego­tiate
Prevents the interface generating DTP frames

Second Config­uration

Third Config­uration



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