Cisco Cisco Aironet 350 Wireless Bridge Guía Para Resolver Problemas
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Troubleshoot the Bridge
Troubleshoot Bridge Hardware
Complete these steps:
Check the LED status on the bridge.
The middle LED is labelled Status. If the Status LED flashes, it means that the bridges are not locked
on to each other. When the two bridges detect each other and an RF link is established (that is, the
bridges are associated), the status LED is solid green. When there are more than two bridges in a
point−to−multipoint configuration, even if one non−root bridge is not associated and one non−root
bridge is associated, the status LED of the root bridge is still solid.
on to each other. When the two bridges detect each other and an RF link is established (that is, the
bridges are associated), the status LED is solid green. When there are more than two bridges in a
point−to−multipoint configuration, even if one non−root bridge is not associated and one non−root
bridge is associated, the status LED of the root bridge is still solid.
The bottom LED is labelled Ethernet. If the Ethernet LED flashes red, a link is not established over
the wired side of the bridge. Normally, a straight−through cable is used from the bridge to a hub or
switch, and a crossover cable is used from one bridge to another, or from a bridge directly to a wired
client.
the wired side of the bridge. Normally, a straight−through cable is used from the bridge to a hub or
switch, and a crossover cable is used from one bridge to another, or from a bridge directly to a wired
client.
1.
Make a Telnet or console connection into the bridge.
Verify that the same service−set identifier (SSID) has been configured on both of the bridges. The
SSID is case sensitive. Check the roles of each bridge; one should be root and the other non−root.
Check the association table to see if the remote bridge is listed. Ping the IP address of the bridge on
the opposite end to check the connectivity of the link.
SSID is case sensitive. Check the roles of each bridge; one should be root and the other non−root.
Check the association table to see if the remote bridge is listed. Ping the IP address of the bridge on
the opposite end to check the connectivity of the link.
2.
If problems persist and the link does not establish, reset the bridges to their defaults and reconfigure
the bridges with basic settings to see if the link comes up.
the bridges with basic settings to see if the link comes up.
3.
Troubleshoot RF
If the root and non−root bridges do not associate with each other, perform RF troubleshooting.
Line of Sight
Make sure that there is visual and radio line of sight between the root and non−root bridges. Check to
ensure that the Fresnel Zone is not obstructed. It may be necessary to raise the antenna height in order
to clear the Fresnel Zone. If the bridges are more than six miles apart, the curvature of the earth
encroaches on the Fresnel Zone. For additional assistance, refer to the Outdoor Bridge Range
Calculation Utility.
ensure that the Fresnel Zone is not obstructed. It may be necessary to raise the antenna height in order
to clear the Fresnel Zone. If the bridges are more than six miles apart, the curvature of the earth
encroaches on the Fresnel Zone. For additional assistance, refer to the Outdoor Bridge Range
Calculation Utility.
1.
Antenna
Ensure that the appropriate antennas are used and that antenna placement and alignment are correct.
2.
Antenna Selection
The antenna is a critical part of the bridge installation. Cisco offers different kinds of bridge antennas
for different applications. Refer to the Cisco Aironet Antennas and Accessories Reference Guide for
additional information and details on each antenna model.
for different applications. Refer to the Cisco Aironet Antennas and Accessories Reference Guide for
additional information and details on each antenna model.
There are two kinds of antennas:
3.