Cisco Cisco Aironet 350 Access Points Notas de publicación
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Introduction
OL-2434-01
Introduction
Introduction
Cisco Aironet Access Points are wireless LAN transceivers that can act as the connection point between
wireless and wired networks or as the center point of a standalone wireless network. Cisco Aironet
Bridges are wireless LAN transceivers that connect two or more remote networks into a single LAN.
wireless and wired networks or as the center point of a standalone wireless network. Cisco Aironet
Bridges are wireless LAN transceivers that connect two or more remote networks into a single LAN.
The access point and bridge use a browser-based management system. The system settings are on web
pages in the system firmware. You use your internet browser to view and adjust the system settings.
pages in the system firmware. You use your internet browser to view and adjust the system settings.
When you install firmware version 11.21 on your access points and bridges, you can:
•
Turn off Spanning Tree Protocol (STP) on non-root bridges.
•
Associate up to 50 Cisco Aironet Workgroup Bridges to an access point or bridge.
•
Combine MAC-Based, EAP, and 802.11 Open Authentication.
•
Use SNMP commands to manage firmware and configuration files.
New Features
Firmware version 11.21 includes these new software features:
•
Ability to turn off Spanning Tree Protocol (STP) on non-root bridges.
With firmware version 11.21, you can maintain a bridge link when STP is disabled on a non-root
bridge. See the
bridge. See the
“STP Enabled/Disabled” section on page 5-18
of the Cisco Aironet 350 Series
Bridge Software Configuration Guide for instructions on disabling STP on non-root bridges.
•
Ability to associate up to 50 workgroup bridges to an access point or bridge.
With firmware version 11.21, you can select no for the new Classify Workgroup Bridges as Network
Infrastructure setting to allow up to 50 workgroup bridges to associate to the access point. The
default setting, yes, limits the number of workgroup bridges that can associate to the access point to
an absolute limit of 27 and to a practical limit of around 20.
Infrastructure setting to allow up to 50 workgroup bridges to associate to the access point. The
default setting, yes, limits the number of workgroup bridges that can associate to the access point to
an absolute limit of 27 and to a practical limit of around 20.
Note
When you select no for the Classify Workgroup Bridges as Network Infrastructure
setting, you must reboot workgroup bridges associated to the access point.
setting, you must reboot workgroup bridges associated to the access point.
Access points and bridges normally treat workgroup bridges not as client devices but as
infrastructure devices, like access points or bridges. Treating a workgroup bridge as an
infrastructure device means that the access point or bridge reliably delivers multicast packets,
including Address Resolution Protocol (ARP) packets, to the workgroup bridge.
infrastructure devices, like access points or bridges. Treating a workgroup bridge as an
infrastructure device means that the access point or bridge reliably delivers multicast packets,
including Address Resolution Protocol (ARP) packets, to the workgroup bridge.
The performance cost of reliable multicast delivery—duplication of each multicast packet sent to
each workgroup bridge—limits the number of infrastructure devices, including workgroup bridges,
that can associate to the access point or bridge. To increase beyond 27 the number of workgroup
bridges that can associate to the access point or bridge, the access point or bridge must reduce the
delivery reliability of multicast packets to workgroup bridges. With reduced reliability, the access
point or bridge cannot confirm whether multicast packets reach the intended workgroup bridge, so
workgroup bridges at the edge of the access point’s or bridge’s coverage area might lose IP
connectivity. When you treat workgroup bridges as client devices, you increase performance but
reduce reliability.
each workgroup bridge—limits the number of infrastructure devices, including workgroup bridges,
that can associate to the access point or bridge. To increase beyond 27 the number of workgroup
bridges that can associate to the access point or bridge, the access point or bridge must reduce the
delivery reliability of multicast packets to workgroup bridges. With reduced reliability, the access
point or bridge cannot confirm whether multicast packets reach the intended workgroup bridge, so
workgroup bridges at the edge of the access point’s or bridge’s coverage area might lose IP
connectivity. When you treat workgroup bridges as client devices, you increase performance but
reduce reliability.