Cisco AIR-BR1410A-A-K9 - Aironet 1410 Wireless Bridge Deployment Manual page 41

• If the bridge is unable to associate with another root bridge within 60 seconds after IOS is
loaded, the bridge assumes a root bridge role.
• Radio Service Set ID (SSID) in this mode is "autoinstall"
• In Installation Mode Bridge runs link test for the RSSI value and updates the LEDs and the
RSSI voltage port.
• By default the Bridge will search for a DHCP server.
• If a DHCP server is found, the Bridge will use the assigned address.
• If a DHCP server is not found, the Bridge will become a DHCP server, and will assign
itself the address of 10.0.0.1 with a mask of 255.255.255.224.
• If the bridge is associated and it is the root bridge its default IP address is 10.0.0.1, if it is a
non-root bridge than it has been given an IP address by the root bridge and the IP address
can be found from its MAC address by browsing the root bridge association's page or
using Cisco's supplied IPSU utility.
• Furthermore, if the Bridge becomes Non-Root during the automatic install procedure, then
the IP address will change again to search for a DHCP server. This is done to prevent
conflicting IP address. It is assumed that if the Root Bridge will be a DHCP server and will
assign a new address.
Tip: It is suggested that you check the Cisco website for later versions of firmware and
review all documentation that came with the Bridge before installing the device.
6.7 Indoor testing - Understanding Maximum Operational Receive Level.
Should you decide to configure both bridges by Ethernet using the default address of 10.0.0.1
and assuming you have configured one Bridge to ROOT and the other to Non-Root, both
bridges will then communicate and pass data. However; should you wish to perform testing in a
lab or indoor environment and the Bridge antennas happen to be located in very close
proximity, you could encounter throughput issues due to receiver overload.
When performing an indoor test, it is recommended that you configure the Bridge to operate at
12 dBm, (the lowest transmitter power setting), and then use either the 9.5 dBi antenna;
(spacing the Bridge antennas at least 5.8 meters away from each other) or if using the
integrated 22.5 dBi antenna to operate error free you should space them approximately 26
meters apart.
Under no circumstance should you directly connect the antenna from one Bridge into the
antenna port of the other bridge without the use of a proper RF attenuator. Should you decide
to cable them together, keep in mind that the maximum survivable receive level is 0 dBm.
Never exceed 0 dBm or damage to the Bridge may occur.
Copyright © 2004 Cisco Systems, Inc. All rights reserved.
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