José Aular | Configuración de enlaces troncales

Tabla de contenido

Tablas de información

Tabla de asignación de direcciones.

Dispositivo	Interfaz	Dirección	Máscara de subred	Puerto del switch	VLAN
PC1	NIC	172.17.10.21	255.255.255.0	SW2 F0/1	10
PC2	NIC	172.17.20.22	255.255.255.0	SW2 F0/2	20
PC3	NIC	172.17.30.23	255.255.255.0	SW2 F0/3	30
PC4	NIC	172.17.10.24	255.255.255.0	SW3 F0/1	10
PC5	NIC	172.17.20.25	255.255.255.0	SW3 F0/2	20
PC6	NIC	172.17.30.26	255.255.255.0	SW3 F0/3	30

Tabla de conexión de los dispositivos.

Desde el dispositivo	Interfaz	Hacia el dispositivo	Interfaz
SW1	G0/1	SW2	G0/1
SW1	G0/2	SW3	G0/1

SW1

Crear y nombrar las VLANs

SW1

SW1(config)# vlan 10
SW1(config-vlan)# name TI
SW1(config-vlan)# exit
SW1(config)# vlan 20
SW1(config-vlan)# name RRHH
SW1(config-vlan)# exit
SW1(config)# vlan 30
SW1(config-vlan)# name SOPORTE
SW1(config-vlan)# exit
SW1(config)# vlan 88
SW1(config-vlan)# name ADMINISTRACION
SW1(config-vlan)# exit
SW1(config)# vlan 99
SW1(config-vlan)# name NATIVA
SW1(config-vlan)# exit

Configurar puertos de enlace troncal

SW1

SW1(config)# interface range GigabitEthernet 0/1-2

Utilice el comando switchport mode trunk para establecer el puerto en modo de enlace troncal permanente y el comando switchport trunk native vlan {vlan-id} para cambiar la configuración de la VLAN nativa a otra opción que no sea VLAN 1.

SW1

SW1(config-if-range)# switchport mode trunk
SW1(config-if-range)# switchport trunk native vlan 99
SW1(config-if-range)# end

Verificar información

Utilice el comando show vlan brief para mostrar la lista de todas las VLANs configuradas.

SW1

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa0/1, Fa0/2, Fa0/3, Fa0/4
                                                Fa0/5, Fa0/6, Fa0/7, Fa0/8
                                                Fa0/9, Fa0/10, Fa0/11, Fa0/12
                                                Fa0/13, Fa0/14, Fa0/15, Fa0/16
                                                Fa0/17, Fa0/18, Fa0/19, Fa0/20
                                                Fa0/21, Fa0/22, Fa0/23, Fa0/24
10   TI                               active
20   RRHH                             active
30   SOPORTE                          active
88   ADMINISTRACION                   active
99   NATIVA                           active
1002 fddi-default                     active
1003 token-ring-default               active
1004 fddinet-default                  active
1005 trnet-default                    active

Utilice el comando show interface trunk para mostrar la configuración de los enlaces troncales.

SW1

Port        Mode         Encapsulation  Status        Native vlan
Gig0/1      on           802.1q         trunking      99
Gig0/2      on           802.1q         trunking      99
 
Port        Vlans allowed on trunk
Gig0/1      1-1005
Gig0/2      1-1005
 
Port        Vlans allowed and active in management domain
Gig0/1      1,10,20,30,88,99
Gig0/2      1,10,20,30,88,99
 
Port        Vlans in spanning tree forwarding state and not pruned
Gig0/1      1,10,20,30,88,99
Gig0/2      1,10,20,30,88,99

SW2 y SW3

Crear y nombrar las VLANs

SW2

SW2(config)# vlan 10
SW2(config-vlan)# name TI
SW2(config-vlan)# exit
SW2(config)# vlan 20
SW2(config-vlan)# name RRHH
SW2(config-vlan)# exit
SW2(config)# vlan 30
SW2(config-vlan)# name SOPORTE
SW2(config-vlan)# exit
SW2(config)# vlan 88
SW2(config-vlan)# name ADMINISTRACION
SW2(config-vlan)# exit
SW2(config)# vlan 99
SW2(config-vlan)# name NATIVA
SW2(config-vlan)# exit

Configurar puertos de enlace troncal

SW2

SW2(config)# interface GigabitEthernet 0/1

SW2

SW2(config-if)# switchport mode trunk
SW2(config-if)# switchport trunk native vlan 99
SW2(config-if)# exit

Configurar puertos de acceso

Interfaz F0/1.

SW2

SW2(config)# interface FastEthernet 0/1

SW2

SW2(config-if)# switchport mode access
SW2(config-if)# switchport access vlan 10
SW2(config-if)# exit

Interfaz F0/2.

SW2

SW2(config)# interface FastEthernet 0/2

SW2

SW2(config-if)# switchport mode access
SW2(config-if)# switchport access vlan 20
SW2(config-if)# exit

Interfaz F0/3.

SW2

SW2(config)# interface FastEthernet 0/3

SW2

SW2(config-if)# switchport mode access
SW2(config-if)# switchport access vlan 30
SW2(config-if)# end

Verificar información

Mostrar lista de todas las VLANs configuradas.

SW2

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa0/4, Fa0/5, Fa0/6, Fa0/7
                                                Fa0/8, Fa0/9, Fa0/10, Fa0/11
                                                Fa0/12, Fa0/13, Fa0/14, Fa0/15
                                                Fa0/16, Fa0/17, Fa0/18, Fa0/19
                                                Fa0/20, Fa0/21, Fa0/22, Fa0/23
                                                Fa0/24, Gig0/2
10   TI                               active    Fa0/1
20   RRHH                             active    Fa0/2
30   SOPORTE                          active    Fa0/3
88   ADMINISTRACION                   active
99   NATIVA                           active
1002 fddi-default                     active
1003 token-ring-default               active
1004 fddinet-default                  active
1005 trnet-default                    active

Mostrar configuración de los enlaces troncales.

SW2

Port        Mode         Encapsulation  Status        Native vlan
Gig0/1      on           802.1q         trunking      99
 
Port        Vlans allowed on trunk
Gig0/1      1-1005
 
Port        Vlans allowed and active in management domain
Gig0/1      1,10,20,30,88,99
 
Port        Vlans in spanning tree forwarding state and not pruned
Gig0/1      1,10,20,30,88,99

Referencias

Cisco Networking Academy