Motorola P880 Benutzerhandbuch

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Cajun P880 Routing Switch Installation Guide

Table14 describes the VLAN Binding Options.

5. From the Automatic VLAN Creation pull-down menu, select 

Enable to automatically create a VLAN each time the port 
receives a frame from an unknown VLAN. 

* Note:  This feature does not create entries in 3Com Mapping 

Tables. Refer to “Creating 3Com Mapping Tables”, in 
Chapter 12, for more information on 3Com Mapping 
Tables.

6. Click APPLY to save your changes, or CANCEL to restore 

previous settings.

Assigns VLAN membership manually, using the 
VLAN Switch Ports page described in “Creating and 
Implementing VLANs”, in the Cajun P550/P220 Switch 
Operation Guide.

Binds this port to all VLANs known to the switch. 
This is an appropriate mode for switch-to-switch 
connections. If you use 3Com Mapping Tables, this 
setting is ignored.

When a tagged IEEE 802.1Q packet arrives 

on a port that is set to bind to all and the 
VLAN does not exist on the switch, the 
packet is forwarded on to the VLAN assigned 
to the port default VLAN for that port. To 
prevent unintended forwarding of unknown 
VLAN traffic to the port’s default VLAN, 
configure the port default VLAN to Discard. 
The automatic VLAN creation feature will not 
work if the port’s default VLAN is the discard 
VLAN, because the switch does not learn for 
this VLAN. 

Binds this port to any VLAN it receives traffic from. 

If Automatic VLAN Creation is enabled, the 

port binds to previously unknown VLANs, 
and a VLAN entry is added to the switch 
VLAN table. If Automatic VLAN Creation is 
disabled, the port does not bind to any VLAN 
unknown to the switch.