
52
Chapter 1 About Ethernet Switches 325 and 425
320985-A Rev 01
VLAN Configuration Control
VLAN Configuration Control (VCC) is a new feature in Software Release 3.6 that
allows a switch administrator to control how VLANs are modified. VLAN
Configuration Control is a superset of the existing AutoPVID functionality and
incorporates this functionality for backwards compatibility. VLAN Configuration
Control is globally applied to all VLANs on the switch.
VLAN Configuration Control offers four options for controlling VLAN
modification:
1
Strict
— This option restricts the addition of an untagged port to a VLAN if it
is already a member of another VLAN. To add an untagged port to a new
VLAN, the switch administrator must remove the port from all other VLANs
of which it is a member of before adding it to the new VLAN. The PVID of
the port will be changed to the new VID to which it was added.
2
Automatic
— This option automatically adds an untagged port to a new
VLAN and automatically removes it from any previous VLAN membership.
The PVID of the port is automatically changed to the VID of the VLAN it
joins. Since the port is first added to the new VLAN and then removed from
any previous membership, the Spanning Tree Group participation of the port
will not be disabled as long as the VLANs involved are in the same Spanning
Tree Group.
3
AutoPVID
— This option functions in the same manner as previous
AutoPVID functionality. When an untagged port is added to a new VLAN,
the port is added to the new VLAN and the PVID assigned to the new VID
without removing it from any previous VLAN memberships. Using this
option an untagged port can have membership in multiple VLANs.
4
Flexible
— This option functions in a similar manner to disabling AutoPVID
functionality. When this option is used, there are no restrictions on the
number of VLANs to which an untagged port can belong. Any new additions
of an untagged port to a new VLAN does not change the PVID of that port.
1
Note:
Strict is the factory default setting.
Summary of Contents for 425-24T
Page 20: ...20 Contents 320985 A Rev 01 ...
Page 38: ...38 Preface 320985 A Rev 01 ...
Page 198: ...198 Chapter 4 Getting Started with Device Manager 320985 A Rev 01 ...
Page 212: ...212 Chapter 5 Using the Web based management interface 320985 A Rev 01 ...
Page 318: ...318 Chapter 7 System configuration using the CLI 320985 A Rev 01 ...
Page 336: ...336 Chapter 8 Ethernet port management using the CLI 320985 A Rev 01 ...
Page 384: ...384 Chapter 11 Administering the switch using Web based management 320985 A Rev 01 ...
Page 404: ...404 Chapter 12 Configuring the switch using Web based management 320985 A Rev 01 ...
Page 424: ...424 Installing an SFP Transceiver 320985 A Rev 01 ...
Page 442: ...442 Default settings 320985 A Rev 01 ...
Page 468: ...468 Command List 320985 A Rev 01 ...
Page 474: ...474 Technical specifications 320985 A Rev 01 ...
Page 488: ...488 Index 320985 A Rev 01 ...