RoamAbout Access Point User’s Guide 9032848-02
Notice Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice.
Notice FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
Notice Taiwanese Notice — Class A Computing Device: CE Notice — Class A Computing Device: Warning! This is a Class A product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. Achtung! Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.
Notice Declaration of Conformity Addendum Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: European Representative Name: European Representative Address: Conformance to Directive(s)/Product Standards: Equipment Type/Environment: 89/336/EEC 73/23/EEC Cabletron Systems, Inc. 35 Industrial Way PO Box 5005 Rochester, NH 03867 Mr. J.
Notice Getting Help For additional support related to this device or document, contact Cabletron Systems using one of the following methods: World Wide Web http://www.cabletron.com http://www.cabletron.com/wireless Phone (603) 332-9400 Internet mail support@cabletron.com To send comments or suggestions concerning this document, contact the Cabletron Systems Technical Writing Department via the following email address: TechWriting@cabletron.
Contents Preface Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii Associated Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents 3 Installing the RoamAbout Access Point Installing the PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Installing the AP into a MultiSwitch 900 or DEChub 90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Removing the Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Seating the AP in the MultiSwitch 900 or DEChub 90 . . . . .
Table of Contents 5 Problem Solving Using the LEDs to Determine the Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Setting Upline Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Showing Counters . . . . . . . . . . . . . . . . . . . .
Preface The RoamAbout™ Access Point is a 2-port bridge that connects a wired Ethernet (ThinWire™ or 10BaseT) local area network (LAN) and a wireless LAN. This manual describes how to install and configure the RoamAbout Access Point. It also describes how to troubleshoot problems that may arise during installation or operation. Intended Audience This manual is intended for the device installer and network manager.
Terminology Terminology The following terms are used throughout this manual. You should be familiar with these terms before you continue. xii Term Definition RoamAbout Access Point A 2-port bridge that connects a wireless LAN to a wired Ethernet LAN. Referred to as AP. RoamAbout PC Card™ A PC Card that installs in a RoamAbout Access Point or wireless client to provide wireless connectivity in a LAN environment.
Associated Documents Associated Documents The following table lists each component, with its associated document, that can be used with your RoamAbout Access Point. Component Document PC Card RoamAbout IEEE DS/PC Card and ISA Adapter Card User’s Guide RoamAbout Access Point Manager Online Help RoamAbout Building-toBuilding RoamAbout 802.
Chapter 1 Introducing RoamAbout Access Point This chapter provides an overview of the RoamAbout Access Point (AP) and its operation. The AP is a 2-port bridge. One port connects the AP to an Ethernet LAN through a 10BaseT or ThinWire cable (or through a MultiSwitch 900 or DEChub 90 Ethernet backplane). The other port connects the AP to the wireless network through a RoamAbout PC Card. The wireless network can consist of multiple wireless clients and multiple APs.
Summary of Features Summary of Features The AP includes the following features: • Supports any 802.11 Direct Sequence (DS) compliant radio in a wireless client1. • Supports ThinWire (10base2) and 10BaseT Ethernet LANs. • Ideally, an AP can support up to 250 users. However, this number can be significantly reduced by various factors, such as obstructions in the coverage area and the amount of network utilization by each client.
Summary of Features Figure 1-1: Front, Side, and Rear View of the AP 15 1 14 Acc 5 6 7 8 9 Poin t 1 16 Ro amAbout 2 3 4 ess 1 2 17 10 11 12 Height: 27.31 cm (10.75 in) Width: 3.18 cm (1.25 in) Depth: 13.3 cm (5.25 in) 13 18 LKG-8679-931-02 The AP contains the following LEDs, connectors, ports, and controls: Item Name Description 1 Network Connector (BNC) Connects the AP to a ThinWire network.
Summary of Features Item Name Description 4 Wired LAN Activity Indicates the status of the wired Ethernet segment. The LED lights (green) when packets are: LED • Received on the Ethernet port and forwarded to the wireless port. • Addressed to or generated by the AP using the Ethernet port. Packets received and filtered are not shown. Data traffic forwarded to the Ethernet port is not shown. The average brightness of the LED indicates the level of activity on the Ethernet port.
Summary of Features Item Name Description 9 PC Card Present Lights (green) when the PC Card is correctly installed at power-up. LED 10 Local Console Port Used to configure the AP. 11 PC Card Slot Used for the PC Card. 12 Ethernet Hardware Address Unique physical address of the AP. 13 Reset Button Forces a downline load of the AP’s firmware from a load host and resets the AP to its factory default settings. 14 Back Cover Present on standalone APs only.
AP to Wireless Clients Configuration AP to Wireless Clients Configuration The AP enables wireless clients to move from the coverage area of one AP into the coverage area of another AP while maintaining LAN connectivity. This capability is called roaming. Figure 1-2 illustrates a wireless client roaming from one AP coverage area to another. Each coverage area is called a cell, where a cell is a single AP and its wireless clients within a network of multiple APs.
AP to AP Configuration AP to AP Configuration You can connect two separate LANs over a wireless link by configuring two RoamAbout Access Points to communicate with each other. This is called a LAN-to-LAN connection. Figure 1-3 shows two APs in different buildings using an outdoor antenna to connect the LANs in those buildings. Figure 1-3: Building-to-Building Configuration R o a mAbout R o a mAbout 1 1 2 2 2844-01-03 You can also configure APs to connect two LANs in the same building.
Bridging Services Bridging Services The AP provides the following bridging services: • Store-and-forward capability The AP receives, checks, and transmits frames to other LANs, enabling the configuration of extended LANs. • Frame filtering based on address Using the address database and the source and destination addresses from incoming frames, the AP isolates the traffic that should not be allowed on other LANs.
Configuration Tools Configuration Tools You can configure the AP using these tools: • RoamAbout Access Point Console Port • RoamAbout Access Point Manager • clearVISN and Network Management Stations (NMS) Console Port The AP has a local console port that enables you to configure and manage the AP using a console port device (a terminal or personal computer running terminal emulation software). The device needs to be directly connected to the AP console port.
Configuration Tools Other Management Tools The AP supports the Simple Network Management Protocol (SNMP) through any standard Network Management Station (NMS) that supports SNMP. The SNMP management capability enables you to manage standard SNMP MIB characteristics, such as protocol filtering and address filtering. To manage the AP with an NMS system, you must configure the AP with a valid IP address, as described in “Configuring the AP for SNMP Management” on page 4-16.
Optional Antennas Optional Antennas When the AP is configured to support wireless clients, you may need the Range Extender antenna to improve signal quality when the PC Card in the AP is shielded. In a LAN-to-LAN configuration, you may need to install outdoor antennas, especially when the APs are located in separate buildings. Range Extender Antenna The RoamAbout PC Card in the AP has two integrated antennas that perform best in an open environment with as few obstacles as possible.
Optional Antennas Figure 1-4: Range Extender Antenna Outdoor Antenna Kit The RoamAbout outdoor antenna kit allows you to connect multiple buildings or LANs via a wireless outdoor point-to-point link. The kit provides a selection of high-gain, low-noise antennas and components. Refer to the RoamAbout 802.11 Outdoor Antenna Installation Guide or the RoamAbout web site for more information.
Chapter 2 Preparing for Installation Before installing the AP, you must complete the following tasks: • Unpack the AP and check the contents of the shipment. • Select the location to install the AP. • Review the site requirements. Unpacking and Checking the Contents of the Shipment Unpack and check the shipment for damage or missing parts. The shipment includes: • RoamAbout Access Point • Power supply • RoamAbout Access Point Manager software on diskettes.
Selecting the Location Selecting the Location If the AP is not installed in a MultiSwitch 900 or DEChub 90, you can mount the AP on a wall, ceiling, or cubicle partition. Depending on your configuration, choose the location to install the AP based on the following guidelines. For an AP to wireless client configuration: • The size of the coverage area (in open air) is determined by the type of PC Card in the AP and wireless client(s). The RoamAbout PC Card has an effective range of up to a 550-ft.
Selecting the Location Figure 2-1: Mounting the AP in a Central Location R o amAbout 1 2 LKG-8805-931-01 Preparing for Installation 2-3
Reviewing the Site Requirements Reviewing the Site Requirements Review the following to ensure that all site preparation tasks were completed. Hardware Requirements • Ensure that the Ethernet LAN is in place and operable. • If you are installing the AP in a standalone configuration, locate the Ethernet interface device (for example, a ThinWire segment, DECconnect faceplate, or other appropriate network device) to which to connect the AP.
Reviewing the Site Requirements Electrical and Environmental Requirements Ensure that the environmental and electrical requirements are within the ranges described in the following tables. Table 2-2: Environmental Specifications Parameter Description Operating Environment Temperature1 5°C to 50°C (41°F to 122°F) Maximum rate of change 20°C/h (36°F/h) Relative humidity 10% to 95% (noncondensing) Wet-bulb temperature 32°C (90°F) Altitude Sea level to 2.
Reviewing the Site Requirements Table 2-3: Electrical Specifications Voltage Current (Amperes) Power (Watts) +5.0 V 1.2 A 6.0 W Table 2-4: AP Power Supply Specifications Parameter Value Input voltage 100 Vac to 240 Vac Current at 120 V 0.25 A Frequency 50 Hz to 60 Hz Power consumption 16 W Output voltage 5.1 Vdc Output current (maximum) 1.
Reviewing the Site Requirements Cabling Requirements For a standalone configuration only: Ensure that you have the appropriate types and lengths of cable for connecting the AP to the wired Ethernet. For a 10BaseT connection, use a BN26K cable. For a ThinWire connection, you need a BC16M cable, T-connector (H8223-00), and 50-ohm terminator (H8225-00).
Chapter 3 Installing the RoamAbout Access Point This chapter provides a step-by-step procedure to install the RoamAbout Access Point. Before installing the AP, ensure that all the procedures in Chapter 2 are completed.
Installing the PC Card Installing the PC Card To install the PC Card, do the following: Step Action 1 With the logo on the PC Card facing the same direction as the AP’s BNC connector, partially insert the card into the PC Card slot. Acc ess Poin t BNC Connector Ro amAbout 1 2 PC Card Logo 2 2844_01_04 Gently push the card into the slot until it is firmly seated. You will sense a slight resistance as you insert the card.
Installing the AP into a MultiSwitch 900 or DEChub 90 Installing the AP into a MultiSwitch 900 or DEChub 90 This section describes how to install the AP in a MultiSwitch 900 or DEChub 90. Removing the Back Cover If there is a cover on the back of the AP, you must remove it before inserting the AP into the backplane. Perform the following steps to remove the back cover: Step Action 1 Lift up the latch on the back cover by inserting a flat-blade screwdriver into the top mounting hole.
Installing the AP into a MultiSwitch 900 or DEChub 90 Seating the AP in the MultiSwitch 900 or DEChub 90 You can install the AP in the MultiSwitch 900 or DEChub 90 without turning off power. Seating the AP initiates the power-up sequence. However, when installing the AP into a DEChub 90, connect the console port device to the console port before applying power to the AP. Perform the following steps to install the AP in the MultiSwitch 900 or DEChub 90.
Installing the AP Installing the AP Perform the following procedure to install the AP as a standalone module. Also, you may need to perform steps 4 and 5 after installing the AP in a DECHub 90 or MultiSwitch 900. Step Action 1 Place the AP in the previously defined location. Site requirements are defined in Chapter 2.
Installing the AP Step Action To connect to a 10BaseT Network –– Connect the 10BaseT cable to the 10BaseT Ethernet connector. Acc ess Poin t Ro amAbout 1 2 LKG-8686-931-01 3 Connect the other end of the ThinWire cable or 10BaseT cable to an active Ethernet outlet, such as a DECconnect faceplate or other appropriate network device.
Installing the AP Step Action 4 To configure the AP, you need the RoamAbout Access Point Manager (see “Installing the RoamAbout Access Point Manager” on page 3-15) or a console device. To use a console device, connect a 9-pin serial cable to the AP’s 9-pin, D-Sub, PC-compatible serial port. Note: The pinouts for the AP’s local console connector are listed in Appendix A.
Installing the AP Step Action 5 If using an antenna (outdoor or range extender antenna), install the antenna cable to the PC Card. The following figure shows the optional range extender antenna.
Installing the AP Step Action 6 Connect the AP’s power supply cable to the power connector on the back panel of the AP. If using an outdoor antenna, make sure that the AP and the outdoor antenna use the same grounding system, as described in the RoamAbout 802.11 Outdoor Antenna Installation Guide. 7 Connect the power supply to an AC outlet to turn on the AP. LKG-8673-931-01 8 Go to “Verifying the Operation of the RoamAbout Access Point” on page 3-10.
Verifying the Operation of the RoamAbout Access Point Verifying the Operation of the RoamAbout Access Point The AP runs a series of self-tests on power-up and reports status using its LEDs. When power-up begins, the following occurs: Stage Description 1 The firmware begins running diagnostics, initializes minimal hardware, then sequentially turns LEDs 2 through 6 on and off. 2 After LED 6 turns on and then turns off, the firmware completes its diagnostics and hardware initialization.
Verifying the Operation of the RoamAbout Access Point Figure 3-1: Normal LED Pattern Access Point 1 2 3 R o amAbout 4 5 6 7 1 2 LKG-10067-931-01 Item LED Name Operational State 1 Power OK On = power is okay 2 Module OK On = self-test passed 3 Wired LAN Activity Blinking = network connection 4 Bridge State On = lights after 30 seconds indicating that the AP is forwarding packets 5 AP Saturated Off 6 Wireless LAN Activity Blinking 7 PC Card Present On = PC Card is installed Instal
Connecting a Device to the Console Port Connecting a Device to the Console Port The console port on the AP allows you to access and set AP parameters. If the AP is installed on the MultiSwitch 900, you need to connect the device to the hub’s console port. You do not need to use the console port if you plan to manage the AP with the AP Manager.
Connecting a Device to the Console Port Table 3-1: Console Port Cabling Connecting to a... If the console port device is a... Then use this cable... With these adapters... Standalone AP or DEChub 90 PC with a 9-pin D-Sub communications port and terminal emulation BC16E-xx1 or any std. PC compatible 9-pin serial cable.
Connecting a Device to the Console Port Figure 3-2: Console Port Cabling 3 3 1 int ss Po Acce 2 R oa mAbout H8571-J H8571-J 1 2 H8575-A BN24H H8575-A BC16E Item Description 1 MultiSwitch 900 console port 2 AP console port 3 Console port device 3-14 Installing the RoamAbout Access Point
Installing the RoamAbout Access Point Manager Installing the RoamAbout Access Point Manager Before installing the RoamAbout Access Point Manager, first select a computer that meets these requirements: • Operating system is Windows 95, Windows 98 and Windows NT V4.0 or later. • The computer is connected to the AP’s wired or wireless LAN. However, a computer connected on the wireless LAN can not upgrade the firmware on its associated AP.
Setting the AP Parameters Setting the AP Parameters The AP is shipped with the following default values: • IP Address: 0.0.0.
Chapter 4 Configuring the RoamAbout Access Point This chapter describes how to configure the AP parameters. Depending on the configuration of your wireless network, you may need to change the default settings of various parameters. Refer to “Configuring the AP for SNMP Management” on page 4-16 to have the AP managed by an SNMP Manager.
Starting a Configuration Tool Starting a Configuration Tool To modify AP parameters after installing the AP, you need to use the RoamAbout Access Point Manager or a device connected to the console port. The following sections describe how to start each tool.
Starting a Configuration Tool You can add all your APs within a wireless domain (defined by the same Wireless Network Name) so that they show up in one Managed List for future changes. Before you exit the AP Manager, make sure to save your Managed List file (you will be prompted). If you are managing APs in multiple domains (different Wireless Network Names) you should save these APs in a separate file.
Showing Current Settings Showing Current Settings You can display the settings that the AP is currently using. Using the AP Manager, select the AP in the Managed List field and click the various buttons, such as Wireless Parameters, Operating Modes, IP Network Parameters, and Hardware. In the Wireless Parameters dialog, click the Advanced button to view all the wireless parameters. If you see a Normal button instead of Advanced, the dialog is currently displaying all the wireless parameters.
Showing Current Settings To display the current wireless settings, choose Module-Specific Options then select Show Wireless Configuration. If you have changed a wireless parameter and have not yet reset the AP, the new setting is NOT reflected in this display. The following example shows the dialog associated with this option.
Wireless Parameters Wireless Parameters The wireless parameters affect how the AP communicates with wireless clients or another AP. To modify any wireless parameter using the AP Manager, select the AP in the Managed List field and click the Wireless Parameters button. To see all the wireless parameters, click the Advanced button. To modify any wireless parameter using the console port, choose Module-Specific Options then choose Set Wireless Configuration.
Wireless Parameters Station Name The Station Name is displayed when clients run the Client Utility. Select a name that will help identify the location of the AP. AP Density The AP Density changes the sensitivity of the roaming client. When APs are placed close together, you can change the AP Density to Medium or High to force clients to roam sooner to a closer AP. The default value is Low. Clients should be set to the same value as the AP.
Wireless Parameters RTS Threshold RTS Threshold, also known as medium reservation, specifies the packet size, where messages larger than the specified size must use the RTS/CTS (Request to Send/Clear to Send) protocol. The default value, 2347, effectively turns off the RTS Threshold. In a wireless network, only one wireless device transmits at a time. Each device can sense transmissions from other devices in its network that use the same frequency.
Wireless Parameters IEEE Power Management (DTIM Period) Power Management can extend battery life of clients by allowing the client to sleep for short periods of time while the AP buffers messages for the client. You may need to balance wireless performance versus battery-life. Power Management can impose a more active use of the wireless medium, which might lead to more frequent transmission delays, experienced as slower network response times during file transfers.
Setting Bridge Mode Setting Bridge Mode The options are: • Workgroup Mode configures the AP to communicate with wireless clients. This is the default setting. • LAN-to-LAN Mode configures the AP to communicate with another AP. The AP to AP configuration connects two LANs. To configure an AP for LAN-to-LAN mode, you may need to change other parameters. For the complete procedure, refer to “Configuring the AP for LAN-to-LAN” on page 4-15.
Setting Encryption Setting Encryption The Wired Equivalent Privacy (WEP) feature uses a specific key to encrypt all data transmitted from the Access Point. However, it uses one of 4 keys to decode received encrypted data. A wireless client without the correct encryption keys cannot receive and decipher encrypted data from the Access Point. You can configure the AP to communicate with clients that use WEP and clients that do not. One version of the RoamAbout PC Card in the AP supports the 802.
Setting RMON Values Setting RMON Values The AP supports four of the nine Remote Network Monitoring MIB (RMON) groups: Statistics, History, Alarm, and Event. However, the settings for these groups can only be accessed with an NMS system. The console port and AP Manager can not change or view the RMON group settings. • Statistics - The Statistics group contains statistics measured by the probe for the Wired LAN and the Wireless LAN interfaces.
Checking the Configuration on Multiple APs Checking the Configuration on Multiple APs You can use the AP Manager to check the integrity of your APs’ configuration. This will insure that all your APs (within a domain) are configured correctly. You can select to check the Wireless, Mode or Firmware integrity. Before running an integrity test, click the Select All button under the list of APs to ensure that all the APs are checked.
Resetting the RoamAbout Access Point Resetting the RoamAbout Access Point There are two ways to reset the AP: • Reset with Current Settings This option reboots the AP but leaves the AP’s configured NVRAM parameters at their current settings. If you change any wireless configuration parameter (Wireless Network Name, Channel, Station Name, etc.), you must select this option to reset the AP. From the AP Manager, select Reset/Reload then select Reset with Current Settings.
Configuring the AP for LAN-to-LAN Configuring the AP for LAN-to-LAN To configure two APs to communicate with each other in a LAN-to-LAN configuration, perform the following tasks: 1) Get the wireless MAC address of the remote AP. You can see the wireless address via the AP Manager or console device, as described in “Showing Current Settings” on page 4-4. The wireless MAC address is NOT the same as the wired MAC address printed on the front of the AP.
Configuring the AP for SNMP Management Configuring the AP for SNMP Management To enable SNMP management for the AP, use the AP Manager or console port to perform the following tasks: • Set the in-band interface IP address of the AP. • Set the in-band interface default gateway address. • Optionally set the SNMP read/write community name (default is “public”). • Optionally add SNMP trap addresses.
Configuring the AP for SNMP Management To change or delete the Access Point’s current IP address using the AP Manager: 1) Select the Access Point in the managed list. 2) Click the IP Network Parameters button. 3) Set the Address State to Volatile then click OK. 4) In the main AP Manager window, click the Reset/Reload button. Then click Reset with Current Settings. This will set the IP address back to 0.0.0.0. The Access Point is no longer manageable by the AP Manager.
Configuring the AP for SNMP Management Set SNMP Read/Write Community To perform SNMP management on the AP, you must assign it a community name. The format for a community name is a string consisting of 4 to 31 printable ASCII characters. This community name can be used by SNMP managers for read/write access control. The default community name is public. NOTE If you use an SNMP read/write community name other than public, you can also prevent other users from accessing the console port menu.
Configuring the AP for SNMP Management Set SNMP Trap Addresses To have the AP send SNMP traps, you need to enter the IP address of the device where the trap is to be sent. A trap is a defined event or condition detected by the RoamAbout Access Point SNMP agent. To enter an SNMP trap address using the console port: 1) At the RoamAbout Installation Menu, choose Add SNMP Trap Addresses. 2) Enter the SNMP trap address. Note: To not change the existing value, press Return to go back to the previous menu.
Upgrading the RoamAbout Access Point Upgrading the RoamAbout Access Point The AP internal firmware, also called embedded software, can be easily upgraded. This firmware is stored in an area called flash memory. You should regularly check the RoamAbout web site (listed in the front of this guide) for the latest information concerning new firmware releases, new features, and bug fixes. Typically, all your parameter settings are retained after the upgrade.
Chapter 5 Problem Solving This chapter contains problem solving information for the AP. Refer to the appropriate section for information about solving specific problems.
Using the LEDs to Determine the Problem Using the LEDs to Determine the Problem The LEDs on the AP show status and help you diagnose problems. After the AP is powered up and completes its power-up self-test procedure, the LEDs indicate whether the AP is functioning properly. When the power-up self-test diagnostics detect a failure in the AP or you suspect a failure, rerun the self-test to verify that the failure can be repeated. Run the self-test by unplugging the ac power cord and plugging it back in.
Using the LEDs to Determine the Problem Table 5-2 describes possible AP problems and recommended corrective actions. Table 5-2: LED Problem Solving Summary If... Then... Do This... Power OK LED (1) is off. AP does not have power. Verify that the outlet has power. Check the power connection to the AP. Replace the power supply (if a standalone configuration). Return the AP (contact your sales representative). Module OK LED (2) is off.
Using the LEDs to Determine the Problem Table 5-2: LED Problem Solving Summary (Continued) If... Then... Do This... Wireless LAN Activity LED (6) is blinking a short on once per second. There is no activity on the wireless LAN. If you know there is activity on the wireless LAN, then this status indicates that the PC Card has an incorrect wireless parameter or is not operating properly. Reconfigure the wireless parameters.
Using the LEDs to Determine the Problem Table 5-3, Table 5-4, and Table 5-5 list common conditions and the corresponding states of the LED indicators. Table 5-3: Normal Operating Mode LED Patterns LEDs1 1 2 3 4 5 6 7 Meaning of LED Pattern Normal operating mode. AP is okay but waiting for Spanning Tree. AP is okay but occasionally saturated. PC Card is defective. Ethernet problem after power-up. 1.
Using the LEDs to Determine the Problem Table 5-5: Network Loading/Upline Dumping LED Patterns LEDs1 1 2 3 4 5 6 7 Meaning of LED Pattern Waiting for downline load from load host Downline loading image from load host Firmware error detected while downline loading image from load host TFTP file not found Waiting for retry of TFTP load Upgrading Flash Flash upgrade successful Invalid (wrong) load image Unsuccessful Flash upgrade Invalid load image: corrupted image Invalid load image: image too large TF
Reset Button Reset Button You can force a downline load of the AP’s firmware from a load host and reset to factory parameters by pressing the Reset button on the front panel of the AP during a power-up cycle. When you press the Reset button as the AP is powering up, the LEDs cycle through three times to indicate that the AP recognized the reset request. If the LEDs do not function properly after resetting the AP to its factory settings, remove the AP and contact your sales representative.
Showing Counters Showing Counters You can display the values of all the counters maintained by the AP. This information can help you to monitor the performance of your wireless network or better understand a problem. Typically, this information is used by RoamAbout support personnel to help you diagnose a problem. To show a subset of the counters using the AP Manager: 1) Select the AP in the Managed List field. 2) Click the Statistics button.
Showing Counters The following example shows the dialogs associated with Show Counters.
Displaying Error Logs Displaying Error Logs The AP can display error logs used by support personnel when analyzing system faults. Up to four error log dumps can be stored, and the most recent dump is displayed first. There are two types of error logs. One for AP settings and one for wireless settings. AP Settings To display the AP settings error logs using the console port, choose Dump Error Log from the RoamAbout Installation Menu.
Removing the AP from the MultiSwitch 900 or DEChub 90 Removing the AP from the MultiSwitch 900 or DEChub 90 Follow this procedure if it becomes necessary to remove the AP: Step Action 1 Lift the release lever located on the top of the MultiSwitch 900 slot or the DEChub 90 slot. 2 Pivot the AP back on its bottom mounting tab, and disengage the AP from the backplane.
Appendix A Connector, Cable, and Adapter Pin Assignments The following figures illustrate the connector, adapter, and cable pin assignments for the RoamAbout Access Point.
Figure A-2: Console Port (DB-9) Connector Pin Assignments Pin 1 2 3 4 5 6 7 8 9 Assignment Data Carrier Detect (DCD) Receive Data (RXD) Transmit Data (TXD) Data Terminal Ready (DTR) Ground Data Set Ready (DSR) Request to Send (RTS) Clear to Send (CTS) No connect 1 6 5 9 LKG-8996-931-01 Figure A-3: BN24H Cable Pin Assignments (Used with Console Port) 8 MMP WH/GR 1 GR/WH 2 WH/OR 3 4 5 OR/WH 6 WH/BR 7 BR/WH 8 6 MMP 1 2 3 4 5 6 LKG-4716-91-01 Figure A-4: BC16E Cable Pin Assignments (Used with Console Po
Figure A-5: H8571-J Adapter Pin Assignments (Used with Console Port) 9 D-Sub(F) 1 2 3 4 5 6 7 8 20 6 MMJ 1 2 3 4 5 6 DCD SD RD DTR GRD DSR RTS CTS RI LKG-5342-911-01 Figure A-6: H8575-A Adapter Pin Assignments (Used with Console Port) 25 D-Sub(F) 6 MMJ DTR TX+ TX RXRX + DSR 1 2 3 4 5 6 1 2 3 4 5 6 7 8 20 LKG-8793-931-01 Connector, Cable, and Adapter Pin Assignments A-3
