Configurar RSTP

Idioma:

Esta tarea muestra el flujo de tráfico en la configuración de RSTP en el SEFOS que se ejecuta en los conmutadores de destino. Esta tarea verifica si hay un bucle en la tipología, si se detecta y si se bloquea el tráfico para el puerto alternativo.

Consulte Switching Feature Topology para obtener la topología de esta tarea.

Configure los parámetros iniciales.
Consulte Configure Initial Settings.

Configure el reenvío de VLAN en SEFOS-1 y SEFOS-2.
Consulte Configure VLAN Forwarding.

En SEFOS-1, verifique el estado del puerto en el modo RSTP.

SEFOS-1# show spanning-tree
Root Id          Priority   32768
                 Address    00:14:4f:6c:63:0f 
                 Cost       0
                 Port       0 [0]
                 Max Age 20 Sec, Forward Delay 15 Sec
 
Spanning tree Protocol Enabled.
Bridge is executing the rstp compatible Rapid Spanning Tree Protocol
Bridge Id        Priority 32768
                   Address    00:14:4f:6c:63:0f
                   Cost       0
                   Port       0 [0]
                   Max Age 20 Sec, Forward Delay 15 Sec
 
Spanning tree Protocol Enabled.
 
Bridge is executing the rstp compatible Rapid Spanning Tree Protocol
Bridge Id          Priority 32768
                   Address 00:14:4f:6c:63:0f
                   Hello Time 2 sec, Max Age 20 sec, Forward Delay 15 sec
                   Dynamic Path Cost is Disabled
                   Dynamic Path Cost Lag-Speed Change is Disabled
Name              Role         State        Cost     Prio   Type
----              ----         -----        ----     ----   ----
X10/1            		Designated 	 Forwarding   2000     128 	 P2P
X10/2 	           	Designated 	 Forwarding   2000     128 	 P2P
X10/21           		Designated 	 Forwarding   2000     128 	 P2P
X10/22           		Designated 	 Forwarding   2000     128  	P2P
...

En SEFOS-2, verifique el estado del puerto en el modo RSTP.

SEFOS-2# show spanning-tree
Root Id         Priority   32768
                Address    00:14:4f:6c:63:0f
                Cost       4000
                Port       X10/1
                Max Age 20 Sec, Forward Delay 15 Sec
 
Spanning tree Protocol Enabled.
 
Bridge is executing the rstp compatible Rapid Spanning Tree Protocol
Bridge Id       Priority 32768
                Address 00:14:4f:6c:6e:0e
                Hello Time 2 sec, Max Age 20 sec, Forward Delay 15 sec
                Dynamic Path Cost is Disabled
                Dynamic Path Cost Lag-Speed Change is Disabled
Name              Role         State        Cost     Prio   Type
----              ----         -----        ----     ----   ------
X10/1            		Designated &nbsp;;Forwarding   2000     128 	 P2P
X10/21           		root	 &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;Forwarding   2000     128 	 P2P
X10/22           		Alternate &nbsp;;&nbsp;;Discarding   2000     128 	P2P
...

Ejecute Ping desde el host A al host C.
```
# ping -s 20.0.0.30
```
El tráfico se reenvía mediante el puerto xl-ethernet 0/21 en SEFOS-1 a SEFOS-2 puerto 21.

Cierre el puerto xl-ethernet 0/21 desde SEFOS-2 y compruebe el estado del puerto.

SEFOS-2# configure terminal
SEFOS-2(config)# int xl 0/1
SEFOS-2(config)# shut
SEFOS-2(config)# exit
SEFOS-2# show spanning-tree
Root Id         Priority   32768
                Address    00:14:4f:6c:69:0f
                Cost       4000
 &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;Port &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;Xl0/2
                Max Age 20 Sec, Forward Delay 15 Sec
 
Spanning tree Protocol Enabled.
 
Bridge is executing the rstp compatible Rapid Spanning Tree Protocol
Bridge Id       Priority 32768
                Address 00:14:4f:6c:6e:0e
                Hello Time 2 sec, Max Age 20 sec, Forward Delay 15 sec
                Dynamic Path Cost is Disabled
                Dynamic Path Cost Lag-Speed Change is Disabled
Name              Role         State        Cost     Prio   Type
----              ----         -----        ----     ----   ------
Xl0/2 &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;root &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;Forwarding &nbsp;;&nbsp;;2000&nbsp;;&nbsp;;&nbsp;;&nbsp;; 128&nbsp;;&nbsp;;&nbsp;; P2P
Xl0/25 &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;root &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;Forwarding &nbsp;;&nbsp;;2000 &nbsp;;&nbsp;;&nbsp;;&nbsp;;128 &nbsp;;&nbsp;;&nbsp;;P2P
Xl0/25 &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;root &nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;&nbsp;;Forwarding &nbsp;;&nbsp;;2000 &nbsp;;&nbsp;;&nbsp;;&nbsp;;128 &nbsp;;&nbsp;;&nbsp;;P2P
...

Ejecute Ping desde el host A al host C.
```
# ping 20.0.0.30
```
El tráfico debe reenviarse mediante el puerto xl-ethernet 0/2 en SEFOS-1. Si RSTP funciona, se producirá un cambio en el estado del puerto.

Configurar RSTP

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