Cisco Systems EA6500 Manual De Usuario

Router# show spanning-tree interface fastEthernet 4/4 detail 

 Port 196 (FastEthernet4/4) of VLAN0010 is forwarding 

   Port path cost 1000, Port priority 160, Port Identifier 160.196.

   Designated root has priority 32768, address 00d0.00b8.140a

   Designated bridge has priority 32768, address 00d0.00b8.140a

   Designated port id is 160.196, designated path cost 0

   Timers:message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state:1

   The port is in the portfast mode by portfast trunk configuration

   Link type is point-to-point by default

   BPDU:sent 30, received 0

Router#

These sections describe how to configure PortFast BPDU filtering on the switch:

To enable PortFast BPDU filtering globally, perform this task:

BPDU filtering is set to default on each port. This example shows how to enable PortFast BPDU filtering 
on the port and verify the configuration in PVST+ mode:

For PVST+ information, see 

 

Router(config)# spanning-tree portfast bpdufilter default 

Router(config)# ^Z

Router# show spanning-tree summary totals 

Root bridge for:VLAN0010

EtherChannel misconfiguration guard is enabled

Extended system ID   is disabled

Portfast             is enabled by default

PortFast BPDU Guard  is disabled by default

Portfast BPDU Filter is enabled by default

Loopguard            is disabled by default

UplinkFast           is disabled

BackboneFast         is disabled

Pathcost method used is long

Name                   Blocking Listening Learning Forwarding STP Active

---------------------- -------- --------- -------- ---------- ----------

2 vlans                   0        0         0        3          3      

Router#

Router(config)# spanning-tree portfast 

 

Enables BPDU filtering globally on the switch.

Router# show spanning-tree summary totals 

Verifies the configuration.