Enabling Portfast Edge Bpdu Filtering On A Specified Interface - Cisco Catalyst 4500 Series Software Configuration Manual

Enabling PortFast Edge BPDU Filtering
---------------------- -------- --------- -------- ---------- ----------
2 vlans
For PVST+ information, see
Note

Enabling PortFast Edge BPDU Filtering on a Specified Interface

Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface {{fastethernet |
gigabitethernet | tengigabitethernet} slot/port} |
{port-channel port_channel_number}
Step 3
Switch(config-if)# spanning-tree bpdufilter [enable |
disable]
Step 4
Switch# show spanning-tree interface {type slot/port}
This example shows how to enable PortFast edge BPDU filtering on port 4/4:
Switch(config)# interface fastethernet 4/4
Switch(config-if)# spanning-tree bpdufilter enable
Switch(config-if)# end
This example shows how to verify that PortFast edge BPDU filtering is enabled:
Switch# show spanning-tree interface fastethernet 4/4
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0010
This example shows more detail on the port:
Switch# show spanning-tree interface fastEthernet 4/4 detail
Port 196 (FastEthernet4/4) of VLAN0002 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.269.
Designated root has priority 32770, address 0002.172c.f400
Designated bridge has priority 32770, address 0002.172c.f400
Designated port id is 128.269, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
Loop guard is enabled by default on the port
The port is in portfast edge trunk mode
Link type is point-to-point by default
BPDU:sent 2183, received 0
Switch#
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
26-18
0 0
Chapter 23, "Configuring STP and MST."
Role Sts Cost Prio.Nbr Status
Desg FWD 1000 160.196
Chapter 26 Configuring Optional STP Features
0 3 3
Purpose
Enters global configuration mode.
Specifies an interface to configure.
Enables or Disables BPDU filtering.
Verifies the configuration.
Edge P2p