Enabling/Disabling Port Mobility; Ignoring Bridge Protocol Data Units (Bpdu) - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

Assigning Ports to VLANs

Enabling/Disabling Port Mobility

To enable mobility on a port, use the
enables mobility on port 1 of slot 4:
-> vlan port mobile 4/1
To enable mobility on multiple ports, specify a range of ports and/or multiple slots.
-> vlan port mobile 4/1-5 5/12-20 6/10-15
Use the no form of this command to disable port mobility.
-> vlan no port mobile 5/21-24 6/1-4
Only Ethernet and gigabit Ethernet ports are eligible to become mobile ports. If any of the following
conditions are true, however, these ports are considered non-mobile ports and are not available for
dynamic VLAN assignment:
•
The mobile status for the port is disabled (the default).
•
The port is an 802.1Q tagged port.
•
The port belongs to a link aggregate of ports.
•
Spanning Tree is active on the port and the BPDU ignore status is disabled for the port. (See
Bridge Protocol Data Units (BPDU)" on page 6-11
•
The port is configured to mirror other ports.
Note. Mobile ports are automatically trusted ports regardless of the QoS settings. See
"Configuring QoS,"
Use the show vlan port mobile
become mobile. For more information about this command, see the OmniSwitch CLI Reference Guide.

Ignoring Bridge Protocol Data Units (BPDU)

By default, ports that send or receive Spanning Tree Bridge Protocol Data Units (BPDU) are not eligible
for dynamic VLAN assignment. If the switch sees BPDU on a port, it does not attempt to classify the
port's traffic. The vlan port mobile
this parameter is enabled when mobility is enabled on the port, the switch does not look for BPDU to
determine if the port is eligible for dynamic assignment.
When BPDU ignore is disabled and the mobile port receives a BPDU, mobility is shut off on the port and
the following occurs:
•
The Switch Logging feature is notified of the port's change in mobile status (see
Switch Logging,"
•
The port becomes a fixed (non-mobile) port that is associated only with its configured default VLAN.
•
The port is included in the Spanning Tree algorithm.
•
Mobility remains off on the port even if the port's link is disabled or disconnected. Rebooting the
switch, however, will restore the port's original mobile status.
OmniSwitch AOS Release 6 Network Configuration Guide
vlan port mobile
for more information.
command to display a list of ports that are mobile or are eligible to
command, however, provides an optional BPDU ignore parameter. If
for more information).
Dynamically Assigning Ports to VLANs
command. For example, the following command
for more information.)
September 2009
"Ignoring
Chapter 40,
Chapter 46, "Using
page 6-11