Enabling Etherchannel Guard - Cisco ME 3400 Software Configuration Manual

Chapter 16 Configuring Optional Spanning-Tree Features
Beginning in privileged EXEC mode, follow these steps to globally enable the BPDU filtering feature.
This procedure is optional.
Command
Step 1 configure terminal
Step 2
spanning-tree portfast bpdufilter default
Step 3 interface interface-id
Step 4 spanning-tree portfast
Step 5 end
Step 6 show running-config
Step 7
copy running-config startup-config
To disable BPDU filtering, use the no spanning-tree portfast bpdufilter default global configuration
command.
You can override the setting of the no spanning-tree portfast bpdufilter default global configuration
command by using the spanning-tree bpdufilter enable interface configuration command on an STP
port.

Enabling EtherChannel Guard

You can enable EtherChannel guard to detect an EtherChannel misconfiguration if your switch is
running PVST+, rapid PVST+, or MSTP.
Beginning in privileged EXEC mode, follow these steps to enable EtherChannel guard. This procedure
is optional.
Command
Step 1
configure terminal
Step 2 spanning-tree etherchannel guard misconfig
Step 3 end
Step 4 show spanning-tree summary
Step 5
copy running-config startup-config
OL-9639-07
Purpose
Enter global configuration mode.
Globally enable BPDU filtering. (By default, BPDU filtering is
disabled.)
Globally enabling BPDU filtering enables it only on STP
Note
ports; the command has no effect on UNIs or ENIs on
which STP is not enabled.
Specify the interface connected to an end station, and enter
interface configuration mode.
If the interface is a UNI, before you enable Port Fast, you must
change the port type to NNI or ENI to enable STP:
Enter the port-type nni interface configuration command to
•
change the port to an NNI with STP enabled by default.
Or enter the port-type eni and spanning-tree interface
•
configuration commands to configure the port as an ENI STP
port.
Enable the Port Fast feature.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Enable EtherChannel guard.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
Configuring Optional Spanning-Tree Features
16-9