ACT31 5.5.3

Actividad 5.5.3:

Resolución de problemas del protocolo spanning tree

NOTA PARA EL USUARIO: Esta actividad es una variación del laboratorio 5.5.3. Es posible que Packet Tracer no admita todas las tareas que se especifican en el laboratorio práctico. Esta actividad no se debe considerar equivalente para completar el laboratorio práctico. Packet Tracer no es un sustituto de la experiencia del laboratorio práctico con un equipo real.

Tabla de direccionamiento

Dispositivo Interfaz Dirección IP Máscara de subred Gateway predeterminado

S1 VLAN 99 172.17.99.11 255.255.255.0 N/A

S2 VLAN 99 172.17.99.12 255.255.255.0 N/A

S3 VLAN 99 172.17.99.13 255.255.255.0 N/A

PC1 NIC 172.17.10.21 255.255.255.0 172.17.10.1

PC2 NIC 172.17.20.22 255.255.255.0 172.17.20.1

PC3 NIC 172.17.30.23 255.255.255.0 172.17.30.1

Asignación de puertos - S2

Puertos Asignación Red

Fa0/1 - 0/5 802.1q Trunks (Native VLAN 99) 172.17.99.0 /24

Fa0/6 - 0/10 VLAN 30 - Guest (Default) 172.17.30.0 /24

Fa0/11 - 0/17 VLAN 10 - Faculty/Staff 172.17.10.0 /24

Fa0/18 - 0/24 VLAN 20 - Students 172.17.20.0 /24

Objetivos de aprendizaje

Identificar el estado inicial de todos los enlaces troncales

Corregir el origen del problema

Documentar la configuración del switch

Situación

Usted es responsable de la operación de la LAN conmutada redundante que se muestra en el diagrama de la topología. Usted y sus usuarios han estado observando el aumento en la latencia durante los momentos de uso pico y su análisis apunta a una congestión de los enlaces troncales. Reconoce que de los seis enlaces troncales configurados, únicamente dos envían paquetes en la configuración predeterminada actualmente en ejecución del STP. La solución a este problema requiere un uso más efectivo de los enlaces troncales disponibles.

Esta actividad finaliza cuando todos los enlaces troncales conectados por cable trasladen tráfico y los tres switches participen en el equilibrio de carga por VLAN para las tres VLAN del usuario.

S1#show spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0030.F20D.D6B1
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0050.0F68.146E
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/4 Desg FWD 19 128.4 P2p

VLAN0010
Spanning tree enabled protocol ieee
Root ID Priority 4106
Address 0050.0F68.146E
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 4106 (priority 4096 sys-id-ext 10)
Address 0050.0F68.146E
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/4 Desg FWD 19 128.4 P2p

VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 4116
Address 00E0.F7AE.7258
Cost 19
Port 3(FastEthernet0/3)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 16404 (priority 16384 sys-id-ext 20)
Address 0050.0F68.146E
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/3 Root FWD 19 128.3 P2p
Fa0/4 Altn BLK 19 128.4 P2p

VLAN0030
Spanning tree enabled protocol ieee
Root ID Priority 4126
Address 0030.F20D.D6B1
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32798 (priority 32768 sys-id-ext 30)
Address 0050.0F68.146E
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Altn BLK 19 128.3 P2p
Fa0/4 Altn BLK 19 128.4 P2p

VLAN0099
Spanning tree enabled protocol ieee
Root ID Priority 32867
Address 0030.F20D.D6B1
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32867 (priority 32768 sys-id-ext 99)
Address 0050.0F68.146E
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p

Fa0/4 Desg FWD 19 128.4 P2p

S2#show spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0030.F20D.D6B1
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 00E0.F7AE.7258
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Altn BLK 19 128.3 P2p
Fa0/4 Altn BLK 19 128.4 P2p

VLAN0010
Spanning tree enabled protocol ieee
Root ID Priority 4106
Address 0050.0F68.146E
Cost 19
Port 3(FastEthernet0/3)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32778 (priority 32768 sys-id-ext 10)
Address 00E0.F7AE.7258
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Altn BLK 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Root FWD 19 128.3 P2p
Fa0/4 Altn BLK 19 128.4 P2p
Fa0/11 Desg FWD 19 128.11 P2p

VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 4116
Address 00E0.F7AE.7258
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 4116 (priority 4096 sys-id-ext 20)
Address 00E0.F7AE.7258
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/4 Desg FWD 19 128.4 P2p
Fa0/18 Desg FWD 19 128.18 P2p

VLAN0030
Spanning tree enabled protocol ieee
Root ID Priority 4126
Address 0030.F20D.D6B1
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 16414 (priority 16384 sys-id-ext 30)
Address 00E0.F7AE.7258
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/4 Desg FWD 19 128.4 P2p
Fa0/6 Desg FWD 19 128.6 P2p

VLAN0099
Spanning tree enabled protocol ieee
Root ID Priority 32867
Address 0030.F20D.D6B1
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32867 (priority 32768 sys-id-ext 99)
Address 00E0.F7AE.7258
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Fa0/3 Altn BLK 19 128.3 P2p

Fa0/4 Altn BLK 19 128.4 P2p