Справочник Пользователя для Cisco Aironet 1131G - Radio access point AIR-LAP1131G-E-K9
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Cisco Aironet 1130AG Series Access Point Hardware Installation Guide
OL-8369-05
Chapter 1 Overview
Guidelines for Using 1130AG Series Lightweight Access Points
The lightweight 1131AG access point contains two integrated radios: a 2.4-GHz radio (IEEE 802.11g)
and a 5-GHz radio (IEEE 801.11a). The lightweight 1131G access point contains one integrated radio:
a 2.4-GHz radio (IEEE 802.11g). Using a controller, you can configure the radio settings.
and a 5-GHz radio (IEEE 801.11a). The lightweight 1131G access point contains one integrated radio:
a 2.4-GHz radio (IEEE 802.11g). Using a controller, you can configure the radio settings.
In the Cisco Centralized Wireless LAN architecture, access points operate in the lightweight mode (as
opposed to autonomous mode). The lightweight access points associate to a controller. The controller
manages the configuration, firmware, and controls transactions such as 802.1x authentication. In
addition, all wireless traffic is tunneled through the controller.
opposed to autonomous mode). The lightweight access points associate to a controller. The controller
manages the configuration, firmware, and controls transactions such as 802.1x authentication. In
addition, all wireless traffic is tunneled through the controller.
LWAPP is an Internet Engineering Task Force (IETF) draft protocol that defines the control messaging
for setup and path authentication and run-time operations. LWAPP also defines the tunneling mechanism
for data traffic.
for setup and path authentication and run-time operations. LWAPP also defines the tunneling mechanism
for data traffic.
In an LWAPP environment, a lightweight access point discovers a controller by using LWAPP discovery
mechanisms and then sends it an LWAPP join request. The controller sends the lightweight access point
an LWAPP join response allowing the access point to join the controller. When the access point is joined,
the access point downloads its software if the versions on the access point and controller do not match.
After an access point joins a controller, you can reassign it to any controller on your network.
mechanisms and then sends it an LWAPP join request. The controller sends the lightweight access point
an LWAPP join response allowing the access point to join the controller. When the access point is joined,
the access point downloads its software if the versions on the access point and controller do not match.
After an access point joins a controller, you can reassign it to any controller on your network.
LWAPP secures the control communication between the lightweight access point and controller by
means of a secure key distribution, using X.509 certificates on both the access point and controller.
means of a secure key distribution, using X.509 certificates on both the access point and controller.
This chapter provides information on the following topics:
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Guidelines for Using 1130AG Series Lightweight Access Points
You should keep these guidelines in mind when you use a 1130AG series lightweight access point:
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The access points can communicate only with 2006 or 4400 series controllers. Cisco 4100 series,
Airespace 4012 series, and Airespace 4024 series controllers are not supported because they lack
the memory required to support access points running Cisco IOS software.
Airespace 4012 series, and Airespace 4024 series controllers are not supported because they lack
the memory required to support access points running Cisco IOS software.
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The access points do not support Wireless Domain Services (WDS). The access points communicate
only with controllers and cannot communicate with WDS devices. However, the controller provides
functionality equivalent to WDS when the access point associates to it.
only with controllers and cannot communicate with WDS devices. However, the controller provides
functionality equivalent to WDS when the access point associates to it.
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The access points support eight BSSIDs per radio and a total of eight wireless LANs per access
point. When a lightweight access point associates to a controller, only wireless LANs with IDs 1
through 8 are pushed to the access point.
point. When a lightweight access point associates to a controller, only wireless LANs with IDs 1
through 8 are pushed to the access point.
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The access points do not support Layer 2 LWAPP. They must get an IP address and discover the
controller using DHCP, DNS, or IP subnet broadcast.
controller using DHCP, DNS, or IP subnet broadcast.
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The access point console port is enabled for monitoring and debuging purposes (all configuration
commands are disabled after connecting to a controller).
commands are disabled after connecting to a controller).