Show Menu
Cheatography

VLAN, VTP, DTP, EtherCannel Cheat Sheet by

Configure VLAN

vlan <nu­mbe­r>
Creates a VLAN
name <na­me>
Sets name of a VLAN
switc­hport mode access vlan <nu­mbe­r>
Assigns interface to a VLAN
show vlan brief
Shows VLANs
switc­hport mode [access | trunk]
Sets Port to Access or Trunk

Conf­igure VTP

vtp domain <do­mai­n>
Set VTP domain
vtp password <pa­ssw­ord­>
Set VTP password
vtp mode [server | client | transp­arent]
Set VTP mode to Server, Client or Transp­arent
show vtp status
Shows status of VTP
VLAN Trunking Protocol distri­butes the VLANs added to the VTP Server to all Switches in the domain. Therefore you do not have to configure every VLAN on every Switch yourself.

Configure DTP

switc­hport mode access
Puts the interface into permanent nontru­nking mode
switc­hport mode trunk
Puts the interface into permanent trunking modePuts the interface
switc­hport mode dynamic auto
Makes the interface able to convert the link to a trunk link (becomes trunk if neighbor is set to trunk or desirable)
switc­hport mode dynamic desirable
Makes the interface actively attempt to convert the link to a trunk link (becomes trunk if neighbour is trunk, desirable or dynamic auto)
switc­hport nonego­tiate
Prevents the interface generating DTP frames
show dtp interface <in­ter­fac­e>
Shows DTP inform­ation for an interface
debug dtp states
Shows DTP actions
Dynamic Trunking Protocol helps to negotiate if an interface is a trunk or access interface.
 

DTP - Negotiated Interfaces Modes

EtherC­hannel

interface range F0/3 - F0/4
Configure multiple interfaces at once
chann­el-­group <nu­mbe­r> mode [auto | desira­ble]
Adds port to EtherC­hannel with mode auto or desirable
interface port-c­hannel <nu­mbe­r>
Configure the EtherC­hannel
switc­hport mode trunk
Sets the interface to Trunk
switc­hport trunk native vlan <nu­mbe­r>
Sets the native VLAN
show etherc­hannel summary
Shows inform­ation about EtherC­hannel
An EtherC­hannel summarizes a few physical cables to one logical cable and can therefore speed up the transfer of data. It is only available for Cisco Devices.

Link Aggreg­ation

interface range F0/0 - F0/1
Configure multiple interfaces at once
switc­hport mode trunk
Set interface to Trunk
switc­hport trunk native vlan <nu­mbe­r>
Set the native VLAN
chann­el-­group <nu­mbe­r> mode [active | passive]
Link Aggreg­ation is the same as EtherC­hannel but is device indepe­ndent.
           

Help Us Go Positive!

We offset our carbon usage with Ecologi. Click the link below to help us!

We offset our carbon footprint via Ecologi
 

Comments

No comments yet. Add yours below!

Add a Comment

Your Comment

Please enter your name.

    Please enter your email address

      Please enter your Comment.

          Related Cheat Sheets

          More Cheat Sheets by marcx28