Re-Enabling Ports Disabled By Bpdu Guard; Displaying The Bpdu Guard Status - Dell PowerConnect B-FCXs Configuration Manual

Re-enabling ports disabled by BPDU guard

When a BPSU Guard-enabled port is disabled by BPDU Guard, the Dell PowerConnect device will
place the port in errdisable state and display a message on the console indicating that the port is
errdisabled (refer to
command output will indicate that the port is errdisabled.
Example
PowerConnect#show int e 2
Gigabit Ethernet2 is ERR-DISABLED (bpduguard), line protocol is down
To re-enable a port that is in errdisable state, you must first disable the port then re-enable it.
Enter commands such as the following.
PowerConnect(config)#int e 2
PowerConnect(config-if-e1000-2)#disable
PowerConnect(config-if-e1000-2)#enable
If you attempt to enable an errdisabled port without first disabling it, the following error message
will appear on the console.
PowerConnect(config-if-e1000-2)#enable
Port 2 is errdisabled, do disable first and then enable to enable it

Displaying the BPDU guard status

To display the BPDU guard state, enter the show running configuration or the show stp-bpdu-guard
command.
For PowerConnect B-Series FCXdevices, enter the following commands.
PowerConnect#show stp-bpdu-guard
BPDU Guard Enabled on:
Ports: (Stk0/S1)
Ports: (Stk0/S1)
Syntax: show stp-bpdu-guard
Example configurations
Example
The following example shows how to configure BPDU guard at the interface level and to verify the
configuration by issuing the show stp-bpdu-guard and the show interface commands.
PowerConnect Router(config)#interface ethernet 1
PowerConnect Router(config-if-e1000-1)#stp-bpdu-guard
PowerConnect Router(config-if-e1000-1)#
PowerConnect Router(config-if-e1000-1)#show stp-bpdu-guard
BPDU Guard Enabled on:
Port
1
PowerConnect(config-if-e1000-1)#
PowerConnect(config-if-e1000-1)#show interfaces ethernet 1
GigabitEthernet1 is up, line protocol is up
Hardware is GigabitEthernet, address is 000c.dba0.7100 (bia 000c.dba0.7100)
Configured speed auto, actual 100Mbit, configured duplex fdx, actual fdx
Configured mdi mode AUTO, actual MDI
Member of L2 VLAN ID 2, port is untagged, port state is FORWARDING
BPDU guard is Enabled, ROOT protect is Disabled
PowerConnect B-Series FCX Configuration Guide
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"Example console messages"
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BPDU guard
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