WESM xl Getting Started Guide 2007-08

4
Introduction
■ Radio Port VLAN (For Layer 2 Adoption only): A VLAN that carries
wireless traffic as well as management, control and status information
between the Module and radio ports when they are both on the same Layer
2 domain (subnet). The VLAN ID is 2100 by default.
• The Module’s Downlink port is a tagged member of this VLAN.
• Each switch port that directly connects a radio port must be an
untagged member of this VLAN.
Auto-VLAN: With software version E.10.30 or later, a 5300xl switch
supports an Auto-VLAN. An Auto-VLAN is a special radio port VLAN that
is automatically created and configured when either a Module is installed
into the 5300xl switch chassis, or when a radio port is connected to a PoE
switch port. The Module’s Downlink port, and the switch ports with a
radio port connected, are assigned membership as appropriate.
Auto-VLAN uses the first available VLAN ID (VID) starting from a vlan-
base value, which is 2100 by default (VID 2100). If VLAN 2100 is
unavailable, the next available VID is used. ,
Auto-VLAN requires that LLDP (Link Layer Discovery Protocol) and
auto-provisioning are enabled on the wireless services-enabled 5300xl
switch (by default, they are enabled).
Infrastructure Switch Connections: When a radio port is connected
to a downlink “infrastructure” switch port (that is, it is not directly
connected to a wireless services-enabled Switch 5300xl port), manual
configuration may be required:
• Switch-to-switch ports between the radio port and the wireless
services-enabled Switch 5300xl must be members of the Radio Port
VLAN (tagged or untagged members, as appropriate for your
network).
• Switch ports connecting radio ports must be an untagged member of
the Radio Port VLAN on the switch where it is connected.
• Infrastructure switches inserted between a radio port and the
wireless services-enabled 5300xl switch should be a member of the
same management VLAN to allow management through the wireless
services-enabled switch.