3Com 4.2.2 Automatic Vlan Moves Based on Policies, Removing a Port from a Protocol-based Vlan

VLAN Moves 5-9

Automatic VLAN Moves Based on Policies

In addition to the manual VLAN Move method above, devices can be setup to automatically configure themselves into VLANs based on policies. Using this method, ports automatically move between VLANs. The changes are dynamically reflected in the VLAN maps. Policy-based VLAN Auto-configuration is described in detail in Chapter 4.

Moving Ports The VLAN Move method described in “Moving Ethernet Segments Between Between VLANs” on page 5-1 also works for moving ports between

Protocol-based VLANs protocol-based VLANs in the CoreBuilder 2500 with one important difference. When the source and destination VLAN are not of the same protocol type, the port will belong to both source and destination VLAN after the move is complete. It is moved to the destination VLAN but not removed from the source VLAN. This behavior takes into account the possibility that one port can belong to several protocol-based VLANs as long as they are of different types (two different IP VLANs are considered to be different types). On the other hand, if the source and destination VLANs are of the same type, the port will be deleted from the source VLAN.

Removing a Port from a Protocol-based VLAN

In the event that a port is not removed from a source VLAN subsequent to a VLAN Move operation, it can be removed by performing the following:

1Select the segment(s) to be removed from the source VLAN window.

2Select the ATMvLAN Move from the ATMvLAN menu.

3When the VLAN Create window appears select the protocol type “None.”

For each segment that was selected, a list of VLANs that the segment belongs to is displayed.

4For each segment, select the VLANs from which the segment is to be removed.

A list of all segments to be removed is displayed in the VLAN Move window.

5Press Apply on the VLAN Move window. The segments are removed from the VLANs.