WESM zl Management and Configuration Guide Supplement 2007-09

4
Introduction
Layer 2 adoption A radio port is adopted by a Module in the same Layer 2 domain (subnet).
Software version WT.01.03 (or later) supports both Layer 2 and Layer 3
adoption.
Layer 3 adoption A radio port is adopted by a Module in a different Layer 2 domain (subnet),
separated from the radio port by a router or routing switch. Note: Layer
3 adoption requires the radio port to be running an updated bootloader
code, which is installed automatically when a radio port is adopted.
However, depending on the current bootloader code version in the radio
port, adoption may need to occur at Layer 2 first, before it can be adopted
at Layer 3.
Radio Port (RP) ProCurve Radio Ports support the 802.1X protocol for port-based access
control as well as LLDP, in the transmit-only mode of operation. Radio
ports receive their configuration and operating information when
adopted by the zl Module.
• Layer 2 adoptions: A radio port operates as a Layer 2, IEEE
802.3af-compliant device, using Link Layer Discovery Protocol (LLDP)
and ‘Hello’ messages to announce its presence to any available
Module in the Layer 2 domain (subnet). If an available Module has
sufficient licenses, the radio port is adopted. IP addresses are not
used, and there is no user interface available.
• Layer 3 adoption: When a radio port is first powered up in a network,
it initially operates as a Layer 2, IEEE 802.3af-compliant device, as
described above. If an available Module has sufficient licenses, a
Layer 2 adoption occurs.
However, if no Module replies at Layer 2, a radio port then initiates a
Layer 3 adoption, which requires an IP address for the radio port and
an IP address of an available Module. When these are supplied
(through DHCP), a Layer 3 adoption of the radio ports occurs. A Layer
3 adopted radio port has an IP address, but no user interface.
For more information, see “Radio Port Adoption” in the latest
Management and Configuration Guide for your ProCurve Wireless Edge
Services zl Module.
Radio Port VLAN
(Layer 2 Adoption)
A VLAN that carries wireless traffic as well as management, control, and
status information between the Module and radio ports. This VLAN may
span multiple switches. This VLAN includes:
• the Module's downlink port (<slot-id>DP) configured with tagged
VLAN membership,
• other ports connecting infrastructure switches (when applicable)
tagged or untagged, according to the network topology, and
• switch ports to which radio ports are directly attached, as untagged
members.
The Auto-VLAN is an automatically-created and configured radio port
VLAN used for Layer 2 adoption. While there can be multiple radio port
VLANs, there can be only one radio port Auto-VLAN.
Term Use in this Manual