Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual page 150

Understanding Mobile Port Properties
If default VLAN is enabled....
Configured Default
VLAN 1
VLAN 3
Device traffic that does not match any
VLAN rules is forwarded on the mobile
port's configured default VLAN.
Why enable default VLAN?
Ensures that all mobile port device traffic is
carried on at least one VLAN.
How Mobile Port Traffic that Does Not Match any VLAN Rules is Classified
page 6-14
Configured Default
VLAN 1
VLAN 3
Device connected to a mobile port sends traffic. If the traffic matches
existing VLAN criteria, then the mobile port and its traffic are
dynamically assigned to that VLAN.
If device traffic does not match any VLAN rules, then the default
VLAN property determines if the traffic is forwarded on the port's
configured default VLAN (VLAN 1 in this example).
If default VLAN is disabled....
OmniSwitch AOS Release 6 Network Configuration Guide
Assigning Ports to VLANs
OmniSwitch
Configured Default
VLAN 1
VLAN 3
Device traffic that does not match
any VLAN rules is discarded.
Why disable default VLAN?
Reduces unnecessary traffic flow on a port's
configured default VLAN.
Restricts dynamic assignment to mobile port
traffic that matches one or more VLAN rules.
September 2009