Technical data

62 Meru System Director Configuration Guide © 2012 Meru Networks, Inc.
Adding an ESS with the CLI
Configuring ESSID Joining of Access Points with the CLI
By default, when a new access point is plugged into the WLAN, it joins all ESSIDs that
are configured to have new access points automatically join upon discovery and a
BSSID is created.
After you are satisfied with your WLAN configuration, you can disable the automatic
joining so that new access points do not change your configuration. If you are adding
a new ESS that you want to advertise on only a small subset of access points, it is
easier to disable joining and add the ESS-AP mappings manually.
The following example prevents access points from automatically joining an ESSID:
controller(config-essid)# no ap-discovery join-ess
After preventing automatic joining, a BSSID must be assigned manually.
Configuring Virtual Cell Support
Virtual Cell is on by default for Meru access points. The major benefit of Virtual Cell
is infrastructure-controlled handoffs with seamless roaming between access points.
AP300 Virtual Cell differs from other Virtual Cell configuration in these ways:
Virtual Cell has to be enabled per AP300 radio interface, in addition to the ESS
Profile configuration. Both the radio and the ESS in use have to have Virtual Cell
enabled for it to work. Virtual Cell is enabled by default on Meru AP300.
If you configure some AP300s in a Virtual Cell-enabled ESS Profile for Virtual Cell
and others for non-Virtual Cell, only the Virtual Cell-configured AP300s are
recognized by the Virtual Cell enabled ESS.
In the Wireless Interface Configuration, the setting Virtual Cell Mode enables
Virtual Cell on AP300 radios only.
AP300 only supports per-station Virtual Cell.
AP300 and AP200 cannot share a Virtual Cell.
Configuring Virtual Cell Support for AP300 or AP400 with Web UI
Virtual Cell is enabled by default on Meru AP300/AP400. However, if you turn Virtual
Cell off at an AP300/AP400 radio then Virtual Cell is off for that radio, even if the
ESS in use has Virtual Cell configured. Both the radio and the ESS in use have to have
Virtual Cell enabled for it to work.There are two steps (instead of just the first one
below for AP150) for configuring Virtual Cell:
1. Create an ESS with Enable Virtual Cell On and Virtual Port On. (These two settings
default to On.)
Caution!
The status of this command is only evaluated when new ESS-AP mappings
are created. ESS-AP mappings are either created manually with the ess-ap
command, or automatically when a new ESS is created, or a new access point is
discovered.