Extreme Networks Altitude 3500 Series, Руководство по продукции

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Altitude 3500 Series Access Point Product Reference Guide
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How the AP Receives Its Adaptive Configuration
An AAP does not require a separate “local” or “running” configuration. Once enabled as an AAP, the
AP obtains its configuration from the controller. If the AP’s WAN link fails, it continues to operate using
the last valid configuration until its link is re-established and a new configuration is pushed down from
the controller. There is no separate file-based configuration stored on the controller.
Only WLAN, VLAN extension and radio configuration items are defined for the AAP by its connected
controller. None of the other access point configuration items (RADIUS, DHCP, NAT, Firewall etc.) are
configurable from the connected controller.
After the AP downloads a configuration file from the controller, it obtains the version number of the
image it should be running. The controller does not have the capacity to hold the access point’s
firmware image and configuration. The access point image must be downloaded using a means outside
the controller. If there is still an image version mismatch between what the controller expects and what
the AAP is running, the controller will deny adoption.
Adaptive AP Prerequisites
Converting an Altitude 3510 or Altitude 3550 model access point into an AAP requires:
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A version 2.0 or higher firmware running on the access point.
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An Extreme Networks controller.
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The appropriate controller licenses providing AAP functionality on the controller.
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The correct password to authenticate and connect the adaptive to the controller.
Configuring the Adaptive AP for Adoption by the Controller
An AAP needs to find and connect to the controller. To ensure this connection:
1 Configure the controller’s IP address on the AAP.
a Provide the controller IP address using DHCP option 189 on a DHCP server. The IP address is a
comma delimited string of IP addresses. For example "157.235.94.91, 10.10.10.19". There can be a
maximum of 12 IP addresses.
b Configure the controller’s FQDN on the AAP. The AAP can use this to resolve the IP address of
the controller.
2 Use the controller’s secret password on the AAP for the controller to authenticate it.
For additional information on defining the connection medium used by the access point to receive an
AAP configuration, see
“Adaptive AP Setup” on page 70 .
To avoid a lengthy broken connection with the controller, Extreme Networks recommends generating
an SNMP trap when the AAP loses adoption with the controller.
NOTE
For additional information (in greater detail) on the AP configuration activities described above, see
“Adaptive AP Configuration” on page 560 .