Cisco 7604 Configuration Manual page 327

Chapter 21 Configuring Optional STP Features
For PVST+ information, see
Note
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
Portfast
PortFast BPDU Guard
Portfast BPDU Filter is enabled by default
Loopguard
UplinkFast
BackboneFast
Pathcost method used is long
Name
---------------------- -------- --------- -------- ---------- ----------
2 vlans
Router#
To enable PortFast BPDU filtering on a nontrunking port, perform this task:
Command
Step 1
Router(config)# interface fastEthernet 4/4
Step 2
Router(config-if)# spanning-tree bpdufilter
enable
Step 3
Router# show spanning-tree interface
fastEthernet 4/4
This example shows how to enable PortFast BPDU filtering on a nontrunking port:
Router(config)# interface fastEthernet 4/4
Router(config-if)# spanning-tree bpdufilter enable
Router(config-if)# ^Z
Router# show spanning-tree interface fastEthernet 4/4
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0010
Router# show spanning-tree interface fastEthernet 4/4 detail
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 filter is enabled
BPDU:sent 0, received 0
Router#
OL-4266-08
Chapter 20, "Configuring STP and Prestandard IEEE 802.1s MST."
is disabled
is enabled by default
is disabled by default
is disabled by default
is disabled
is disabled
Blocking Listening Learning Forwarding STP Active
0 0
Purpose
Selects the interface to configure.
Enables BPDU filtering.
Verifies the configuration.
Role Sts Cost Prio.Nbr Status
Desg FWD 1000 160.196
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
Enabling PortFast BPDU Filtering
0 3 3
Edge P2p
21-11