WESM zl Management and Configuration Guide WT.01.28 and greater

1-8
Introduction
ProCurve Wireless Edge Services zl Module
Note The rule that the Wireless Edge Services zl Module receives RP traffic on its downlink
port and a Radio Port VLAN has one exception. When an RP is adopted at Layer 3,
it can communicate with the module on either the uplink or the downlink port. The
only rule for the VLAN on which an RP is adopted at Layer 3 is that this VLAN be
tagged on only one of the internal ports.
For more information on Layer 3 adoption, see “Communications Between an RP
and the Wireless Edge Services zl Module: Layer 2 and Layer 3 Adoption” on
page 1-64.
Using Auto-Provisioning to Establish a Radio Port VLAN. When you install a
Wireless Edge Services zl Module in a zl switch, auto-provisioning is enabled by
default: the switch automatically establishes VLAN 2100 as the default Radio Port
VLAN, or the Auto-VLAN. (If VLAN 2100 is unavailable, the switch uses the next
available VLAN number.)
The switch also automatically configures the module’s internal downlink port as a
tagged member of this Radio Port VLAN. (The port is a tagged member because the
module drops all untagged traffic.)
When an RP is connected to a port on the wireless services-enabled switch, the switch
uses Link Layer Discovery Protocol (LLDP) to identify itself to the switch. The
switch then automatically configures the port as an untagged member of the Radio
Port VLAN. (Because the RP does not support 802.1Q, the port must be an untagged
member of the VLAN.)
Figure 1-1 shows the VLAN tagging if auto-provisioning remains enabled on the
wireless services-enabled switch.