Cisco Cisco Aironet 1400 Wireless Bridge 發佈版本通知
6
Release Notes for Cisco Aironet 1410 Bridges for Cisco IOS Release 12.2(13)JA2
OL-4530-02
Important Notes
requesting an address from a DHCP server. If it does not receive an address, it sends requests
indefinitely. If you miss the five-minute window for browsing to the bridge at 10.0.0.1, you can
power-cycle the bridge to repeat the process.
indefinitely. If you miss the five-minute window for browsing to the bridge at 10.0.0.1, you can
power-cycle the bridge to repeat the process.
If have configured a static IP address and want to reset the bridge to its default settings but retain the IP
address, use the write erase or erase /all nvram command. If you want to erase everything including the
static IP address, in addition to the above commands, use the erase and erase boot static-ipaddr
static-ipmask command.
address, use the write erase or erase /all nvram command. If you want to erase everything including the
static IP address, in addition to the above commands, use the erase and erase boot static-ipaddr
static-ipmask command.
Caution
You should never delete any of the system files prior to resetting defaults or reloading software.
Ethernet Duplex Settings
The bridge is implemented with an unmanaged and unconfigurable 10/100baseT switch embedded in the
power injector. All ports on the switch are set for auto-speed, auto-duplex, and auto-MDIX. Port 0 on
the switch is used for the coaxial link to the access point/bridge. Port 1 on the switch is used for the RJ45
jack on the power injector.
power injector. All ports on the switch are set for auto-speed, auto-duplex, and auto-MDIX. Port 0 on
the switch is used for the coaxial link to the access point/bridge. Port 1 on the switch is used for the RJ45
jack on the power injector.
The speed and duplex settings on the bridge FastEthernet0 interface apply only to the link between the
bridge port and port 0 on the power injector. They are entirely independent of the speed and duplex
settings used on the RJ45 port (port 1) on the power injector. Therefore, for best performance, you should
not change the port 0 default settings. The default settings result in a 100Mbps, full-duplex configuration
used on the link between the bridge and the power injector switch.
bridge port and port 0 on the power injector. They are entirely independent of the speed and duplex
settings used on the RJ45 port (port 1) on the power injector. Therefore, for best performance, you should
not change the port 0 default settings. The default settings result in a 100Mbps, full-duplex configuration
used on the link between the bridge and the power injector switch.
The connecting port (the port on the device connected to the power injector’s RJ45) must be set to half
duplex or (preferably) auto duplex. If it is set to auto-duplex, the power injector switch port should
negotiate full duplex. If it is set to half duplex, the power injector switch port falls back to half-duplex.
The connecting port must not be configured to full duplex. If it is, the power injector switch port fails to
negotiate full-duplex, falls back to half duplex, which causes a duplex mismatch.
duplex or (preferably) auto duplex. If it is set to auto-duplex, the power injector switch port should
negotiate full duplex. If it is set to half duplex, the power injector switch port falls back to half-duplex.
The connecting port must not be configured to full duplex. If it is, the power injector switch port fails to
negotiate full-duplex, falls back to half duplex, which causes a duplex mismatch.
The following guidelines for setting Ethernet speed and duplex should always be observed:
•
The internal FastEthernet0 interface should always be set for speed auto and duplex auto regardless
of the settings of the device to which the external LAN port on the power injector is connected (the
connecting port).
of the settings of the device to which the external LAN port on the power injector is connected (the
connecting port).
•
The connecting port should always be set for one of the following:
–
100 Mbps, auto duplex (recommended)
–
100 Mbps, half duplex
–
10 Mbps, auto duplex
–
10 Mbps, half duplex
Note
Setting the port to 10 Mbps will most likely degrade throughput.
•
The connecting port should never be set to full duplex.
Failure to follow these guidelines will result in lost data due to late collisions, CRC errors, etc.