Aironet AP4500 Guida Utente

Technical Reference Manual Wireless Bridge for Ethernet and Token Ring Products Supported: BRE100, BRE500, BR100, and BR500 DOC 710-004494-A0 Wire

viii Contents Specifying the Type of Logs to Print (Printlevel) ... 12-11Specifying the Type

Configuring SNMP 7 - 7Specifying Community Names for Trap Messages (Trapcomm)Use the trapcomm option to specify the community name that will be used

7 - 8 Ethernet or Token Ring Bridge

Chapter 8 - Using the Spanning Tree Protocol8CHAPTER 8Using the Spanning Tree ProtocolThis chapter describes how to conÞgure the Ethernet or Token Rin

8 - 2 Ethernet or Token Ring BridgeOverviewSTP is used to remove loops from a bridged LAN environment. The Ethernet or Token Ring Bridge implements

Using the Spanning Tree Protocol 8 - 3Understanding LoopsIf there is more than one path from one LAN to another, the infrastruc-ture contains a loop

8 - 4 Ethernet or Token Ring BridgeHow STP Protocol WorksThe STP protocol works by having the Bridges transmit special conÞgu-ration messages to eac

Using the Spanning Tree Protocol 8 - 5Each Bridge starts by assuming it is the root and its root cost is 0. When a Bridge receives a conÞguration me

8 - 6 Ethernet or Token Ring BridgeDetermining the Spanning TreeAll ports on a Bridge, either the root port or the designated port for their LAN, ar

Using the Spanning Tree Protocol 8 - 7If the port is still part of the spanning tree at the end of the listening period it is put in the learning st

8 - 8 Ethernet or Token Ring BridgeThe root Bridge in turn will include a ßag in all the conÞguration mes-sages it sends.This ßag will be propagated

Contents ix Appendix B - Console Menu Tree ...B-1 Appendix C -

Using the Spanning Tree Protocol 8 - 9Using the Configuration STP Menu (Root Bridge Only)The STP Protocol for a root Bridge is conÞgured using the Co

8 - 10 Ethernet or Token Ring BridgeSetting the Bridge Priority (Priority)The priority option is used to set the priority value appended to the infr

Using the Spanning Tree Protocol 8 - 11Figure 8.2 provides a sample conÞguration in which it would be useful to change the root Bridge.Bridge 4 is t

8 - 12 Ethernet or Token Ring BridgeIf there is heavy trafÞc between LAN A and LAN B, it would be more efÞcient to have Bridge 1 become the root wit

Using the Spanning Tree Protocol 8 - 13Setting the Hello Message Interval Time (Hello_Time)The hello_time option is used to set the interval time, i

8 - 14 Ethernet or Token Ring BridgeIf the timout period is set too low, the spanning tree infrastructure may reconÞgure itself unnecessarily and me

Using the Spanning Tree Protocol 8 - 15Setting the Local Port Priority (Priority)The priority option is only used when two or more repeaters are con

8 - 16 Ethernet or Token Ring BridgeDisplaying the Protocol Status (Display)The display option shows the overall status of the STP protocol and the

Using the Spanning Tree Protocol 8 - 17Viewing the Port State (State)The state option is a read-only value which displays the current STP state of t

8 - 18 Ethernet or Token Ring Bridge

x List of Figures Figure 0.1 - Point-to-Point Wireless Bridge ... xxii Figure 0.2 - Point-to-Multipoint W

Part 3 - Control & MaintenancePart 3 - Control & Maintenance

Part 3 - Control & Maintenance

Chapter 9 - Viewing Statistics9CHAPTER 9Viewing StatisticsThis chapter describes how to use the Statistics Menu to monitor the performance of the Ethe

9 - 2 Ethernet or Token Ring BridgeViewing the Statistics MenuThe Statistics Menu provides easy access to a variety of statistical infor-mation reg

Viewing Statistics 9 - 3Throughput Statistics (Throughput)The Throughput Statistics Display provides a detailed summary of the radio data packets pa

9 - 4 Ethernet or Token Ring Bridgen Errors: Displays the number of errors that may have occurred. n Enter space to redisplay, C[lear stats], q[qui

Viewing Statistics 9 - 5Error StatisticsThe Ethernet or Token Ring Error Statistics Display provides a detailed summary of the receiver and transmit

9 - 6 Ethernet or Token Ring Bridgen Frame copy error: The Token Ring adapter has received a frame addressed to itself that has been marked as alre

Viewing Statistics 9 - 7Ethernet Error Statistics n Buffer Full Frames Lost: Number of frames lost due to a lack of receiver buffer space in the uni

9 - 8 Ethernet or Token Ring Bridgen Excessive Deferrals: Number of times the frame failed to transmit due to excessive deferrals. Usually indicate

xi List of Tables Table 1.1 - Top Panel Indicator Description ... 1-11 Table 4.1 - Auto Link Test Displ

Viewing Statistics 9 - 9Displaying Sources Routes (Routes) Token Ring OnlyThe route option displays the source routes to the LAN nodes that the radi

9 - 10 Ethernet or Token Ring BridgeDisplaying Overall Status (Status)This display shows the settings of the most important configuration parameters

Viewing Statistics 9 - 11Recording a Statistic History (Watch)Use the watch option to record the values of a chosen Ethernet or Token Ring statistic

9 - 12 Ethernet or Token Ring BridgeDisplaying a Statistic History (History)Use the history option to display the Ethernet or Token Ring history of

Viewing Statistics 9 - 13Displaying Node Information (Node)The node command displays current Ethernet or Token Ring information about the client.n A

9 - 14 Ethernet or Token Ring BridgeSetting Screen Display Time (Display_Time)Use the display time option to set the Ethernet or Token Ring time in

Chapter 10 - Setting Up the Association Table10CHAPTER 10Setting Up the Association TableThis chapter describes the procedures for setting up the Asso

10 - 2 Ethernet or Token Ring BridgeOverviewClient nodes and repeater Bridges request to be associated with a parent Bridge so the parent will forw

Setting Up the Association Table 10 - 3Using the Association MenuThe Association Menu contains options that allow you to view the table entries, add

10 - 4 Ethernet or Token Ring BridgeThe typical hierarchy display will resemble:The rest of the displays will be similar to the one below.n Address

xii Ethernet or Token Ring Bridge About the Technical Reference Manual This manual covers the installation, configuration, control, and maintena

Setting Up the Association Table 10 - 5n Parent Column: Displays the node ID of the parent to which the node is associated. In place of a node ID, t

10 - 6 Ethernet or Token Ring BridgeAssociation Monitor Menu (Monitor)The commands in this menu allow you to monitor the location and movement of a

Setting Up the Association Table 10 - 7Network Map (Trace)This command builds a table similar to the Network Map Table but does not continuously dis

10 - 8 Ethernet or Token Ring BridgeFor example, suppose there is an Bridge on your accounting LAN and three end nodes (A, B, and C) within radio r

Setting Up the Association Table 10 - 9If you are going to use static entries to control associations, then the “association add all” command is a q

10 - 10 Ethernet or Token Ring Bridge

Chapter 11 - Using Filters11CHAPTER 11Using FiltersThis chapter describes how to control the forwarding of multicast messages. Here’s what you’ll find

11 - 2 Ethernet or Token Ring BridgeOverviewIf your Ethernet or Token Ring Bridge is connected to an infrastructure with a large amount of multi-pr

Using Filters 11 - 3Filtering Multicast Addresses (Multicast) The multicast menu allows you to control the filtering of multicasts based on the actua

11 - 4 Ethernet or Token Ring BridgeThis same display may also be produced with the “association display” command with either the “all” or “multica

About the Technical Reference Manual - xiii Chapter 9 – Setting Up the Association Table – Provides you with an introduction to the association pr

Using Filters 11 - 5Filtering Node Addresses (Node)The node option allows you to control the forwarding of packets based on the source node addresse

11 - 6 Ethernet or Token Ring BridgeSetting the Default (Source)The default applies to those packets whose address does not have an entry in the fil

Using Filters 11 - 7Displaying the IP to Network Address Table (IPdisplay)When a node address filter is entered by IP address, the Ethernet or Token

11 - 8 Ethernet or Token Ring BridgeThe Ethernet or Token Ring Bridge may be set up to monitor and record the list of protocols currently being for

Using Filters 11 - 9You may set up filters based on either a protocol identifier or a DSAP/SSAP combination. If the filter is based on SAPs and the con

11 - 10 Ethernet or Token Ring BridgeDisplaying the Filters (Display)Use the display option to view the list of protocol filters you have added. Nam

Using Filters 11 - 11Adding A Filter (Add)Use the add option to add a protocol filter and specify the type of action required. There are several ways

11 - 12 Ethernet or Token Ring Bridgeè To Add a Filter Using the MonitorIf protocol monitoring has been enabled, once you select the add command, t

Using Filters 11 - 13This allows you to specify a bit mask and corresponding hexa-decimal value to be applied to the packet. These two values must m

11 - 14 Ethernet or Token Ring BridgeIf you type llc:a. When you select llc, the following prompt appears:Enter a value in hex of ffffh or less :b.

xiv Ethernet or Token Ring Bridge Typographical Conventions When reading the technical reference manual, it’s important to under-stand the symbo

Using Filters 11 - 15Removing an Entry (Remove)Use the remove option to remove a protocol filter entry. You may either remove all filters by entering

11 - 16 Ethernet or Token Ring BridgeProtocol Monitoring (Monitor/ Show/ Clear)The Ethernet or Token Ring Bridge allows you to create and display a

Using Filters 11 - 17Access Packet Direction (Direction)Use the direction options to control the direction a packet is traveling before affected by

11 - 18 Ethernet or Token Ring Bridge

Chapter 12 - Setting Up Event Logs12CHAPTER 12Setting Up Event LogsThis chapter describes how to use the Logs Menu to set up and view event logs on th

12 - 2 Ethernet or Token Ring BridgeOverviewThe Ethernet or Token Ring Bridge produces logs that record the occur-rence of significant events occur

Setting Up Event Logs 12 - 3Node “node address” “device name” “ASCII name” removed, max radio retriesA node was removed from the table because a res

12 - 4 Ethernet or Token Ring BridgeSNMP: “command text”A SNMP management node sent the unit a “set” variable request which was successfully execu

Setting Up Event Logs 12 - 5TFTP is loading “file name” from “ip address”This log is produced when the BOOTP server gives the Ethernet or Token Ring

12 - 6 Ethernet or Token Ring BridgeConfiguration is too large to saveThe number of commands in the configuration is too large for the avail-able no

Ethernet or Token Ring Bridge xvWelcome to the Ethernet or Token Ring Bridge The Ethernet or Token Ring Bridge allows the connections of two or more

Setting Up Event Logs 12 - 7Lost our association, new specified routerThe specified router parameter of this repeater has been changed. The unit will

12 - 8 Ethernet or Token Ring BridgeToken ring open failed, signal lossBefore the unit inserts into a ring, the unit needs to see certain signals

Setting Up Event Logs 12 - 9Using the Logs MenuThe event logs are viewed using the Logs Menu. To access this menu, select Logs from the Main Menu.Vi

12 - 10 Ethernet or Token Ring BridgeThe display will be similar to the following:n First Line: “OLDEST” indicates the end of the buffer display.

Setting Up Event Logs 12 - 11Specifying the Type of Logs to Print (Printlevel)Use the printlevel option to specify the type of event logs to appear

12 - 12 Ethernet or Token Ring BridgeSetting Statistic Parameters (Statistics)This command allows you to control how alarms are generated based on

Setting Up Event Logs 12 - 135. Enter an action.n Off: Turns off any alarms based on the statistics value.n Any: An alarm will be generated if the s

12 - 14 Ethernet or Token Ring Bridge

Chapter 13 - Performing Diagnostics13CHAPTER 13Performing DiagnosticsThis chapter describes how to use the Diagnostics Menu to maintain the Ethernet o

13 - 2 Ethernet or Token Ring Bridge Using the Diagnostics MenuDiagnostics are performed using the Diagnostics Menu. To access this menu, select Di

xvi Ethernet or Token Ring BridgeThe Token Ring Bridge can attach directly to Shielded Twisted Pair (STP) or Unshielded Twisted Pair (UTP) Token Ring

Performing Diagnostics 13 - 3Using the Network MenuNetwork connection commands are performed using the Network Menu. To access this menu, select Dia

13 - 4 Ethernet or Token Ring Bridge When starting a telnet session with the connect option:n Make sure the telnet option on the remote is enabled

Performing Diagnostics 13 - 5Physically Locating a Unit (Find)Use the find option to blink the amber indicators of the Bridge on and off. Find a unit

13 - 6 Ethernet or Token Ring Bridge Loading New Code Versions (Load)The Ethernet or Token Ring Bridge code is stored in a flash memory chip inside

Performing Diagnostics 13 - 7Downloading Using Xmodem Protocol (Xmodem/Crc-xmodem)Use the Xmodem or CRC-xmodem options to load the new firmware ver-s

13 - 8 Ethernet or Token Ring Bridge Downloading or Uploading using the File Transfer Protocol (Ftp)Use the FTP option to download or upload firmwar

Performing Diagnostics 13 - 9èTo Download Firmware using FTP:1. Load the file onto the PC, host, or Bridge you will retrieve from.2. Select the dest

13 - 10 Ethernet or Token Ring Bridge The unit will begin an FTP session to the host PC, retrieve the file, program the flash memory, and reboot. A m

Performing Diagnostics 13 - 11If uploading to another Ethernet or Token Ring Bridge, the filename option must have a value even though the value is n

13 - 12 Ethernet or Token Ring Bridge 6. The contents of the configuration file is processed as though the commands have been entered by the operator

Ethernet or Token Ring Bridge xviiRadio RangesThe following section provides general guidelines on factors that influence infrastructure performance.Si

Performing Diagnostics 13 - 13If you are distributing a configuration, examine the parts of the unit’s configuration that will be distributed by execu

13 - 14 Ethernet or Token Ring Bridge 3. The following message will appear:Finding the other units ...When the command is executed, the local unit

Appendix A - Aironet Ethernet or Token Ring Bridge SpecificationsLAN Interfaces SupportedEthernet Token Ring Radio Characteristics Cable Specifica

A-2 Ethernet or Token Ring BridgePhysical SpecificationsItem DescriptionSize 20 x 15 x 5 cm (7.8 x 5.9 x 1.9 inches)Status Indicators Top Panel – R

A-3Console Port Pin-OutThe Console Port is a DCE using a DB-9 female connector. The follow-ing table describes the pinouts on the connector and ho

A-4 Ethernet or Token Ring Bridge

Appendix B - Console Menu TreeThe Console system consists of multiple sub-menus that branch off the Main Menu, much like a tree. This Appendix provide

B-2 Ethernet or Token Ring BridgeEthernet Ethernet configurationActive Connection activeSize Maximum frame sizePort Port selectionToken Ring Token

B-3Snmp Set snmp valuesEnabled Enable the SNMP agentCommunities Set community propertiesDisplay Display communitiesAdd Add a communityRemove Remov

B-4 Ethernet or Token Ring BridgeMaximum Maximum allow child nodesAutoassoc Allow automatic table additionsAdd Control node associationRemove Remo

Aironet Wireless Communications, Inc.No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical,

xviii Ethernet or Token Ring BridgeLine of SiteA clear line of sight must be maintained between Wireless Bridge anten-nas. Any obstructions may imped

B-5Restart Equivalent to power-upDefaults Return to default configurationReset Defaults parts of the configurationLoad Load new version of firmwareXm

B-6 Ethernet or Token Ring Bridge

Appendix C - SNMP VariablesThe Aironet Ethernet or Token Ring Bridge supports the Simple Network Management Protocol (SNMP). SNMP provides an industry

C-2 Ethernet or Token Ring BridgeThe Interfaces GroupMIBII.interfaces (1.3.6.1.2.1.2.x)The Address Translation Group (deprecated by MIB-II)MIBII.a

C-3The IP GroupMIBII.ip (1.3.6.1.2.1.4.x)Object Id Object Name Object Type Access 1 ipForwarding integer read 2 ipDefaultTTL integer write 3 ipInR

C-4 Ethernet or Token Ring BridgeThe ICMP GroupMIBII.icmp (1.3.6.1.2.1.5.x)The UDP GroupMIBII.udp (1.3.6.1.2.1.7.x)Object Id Object Name Object Ty

C-5The Transmission GroupMIBII.transmission.dot3 (1.3.6.1.2.1.10.7.x)Object Id Object Name Object Type Access 1 dot3Table Sequence of dot3 entry 1

C-6 Ethernet or Token Ring BridgeThe SNMP GroupMIBII.snmp (1.3.6.1.2.1.11.x)Object Id Object Name Object Type Access 1 snmpInPkts counter read 2 s

C-7The Configure STP GroupMIBII.dot1dBridge.dot1dStp (1.3.6.1.2.1.17.2.x)Object Id Object Name Object Type Access1 dot1dStpProtocolspecification int

C-8 Ethernet or Token Ring BridgeMIBII.dot1dBridge.dot1dTp (1.3.6.1.2.1.17.4.x)Object Id Object Name Object Type Access1 dot1dTpLearnedEntryDiscar

Ethernet or Token Ring Bridge xixRadio AntennaAironet Bridge Solutions have been packaged to provide wide area bridge connectivity in accordance with

C-9The Token Ring Groupiso.org.dod.internet.experimental.dot5 (1.3.6.1.3.4)Object Id Object Name Object Type Access 1 dot5Table Sequence of dot5En

C-10 Ethernet or Token Ring Bridge3.2 The ARLAN Custom MIBThe Configure Ethernet GroupACCESSPOINT.configuration.cfgEthernet (1.3.6.1.4.1.551.2.2.1.1

C-11The Configure Console GroupACCESSPOINT.configuration.cfgConsole (1.3.6.1.4.1.551.2.2.1.4.x)The Configure SNMP GroupACCESSPOINT.configuration.cfgSn

C-12 Ethernet or Token Ring BridgeThe Configure Logs GroupACCESSPOINT.configuration.cfgLogs (1.3.6.1.4.1.551.2.2.1.6.x)The Configure Association Tabl

C-13 The Configure Ident GroupACCESSPOINT.configuration.cfgIdent (1.3.6.1.4.1.551.2.2.1.9.x)The Radio Error Statistics GroupACCESSPOINT.statistics.

C-14 Ethernet or Token Ring BridgeThe Admin GroupACCESSPOINT.admin (1.3.6.1.4.1.551.2.2.4.x)The Admin LinkTest GroupACCESSPOINT.admin.adminLinktes

C-15The Admin FTP GroupACCESSPOINT.admin.adminFTP (1.3.6.1.4.1.551.2.2.4.3.x)Object Id Object Name Object Type Access 1 adminFtpGet integer write

C-16 Ethernet or Token Ring Bridge

Appendix D - Aironet Technical Support User’s GuideUse the User’s Guide document number 710-004496 to learn more about operating your Aironet unit.Co

D-2 Ethernet or Token Ring Bridge

xx Ethernet or Token Ring BridgeTerminologyWhen configuring your system, and when reading this manual, keep in mind the following terminology:Infrastr

I - iAAssociation Tableauto-association 10-7controlling associations 10-7display of node addresses 10-9displaying the summary 10-5displaying the table

I - ii monitoring used protocols 11-16overview 11-2finding a unit 13-4FTPdownloading firmware/configuration 13-8menu 13-7overview 13-7setting an IP ad

I - iiiping, a remote IP address 13-4PortsEthernet or Token Ring 5-1privilege levels 2-12protocol filtering 11-7RRadio Networkconfiguration menu 4-3ov

I - iv

Ethernet or Token Ring Bridge xxi Bridge System ConfigurationsThe Ethernet or Token Ring Bridge can be used in a variety of infra-structure configuratio

xxii Ethernet or Token Ring Bridge Figure 0.1 - Point-to-Point Wireless BridgeThe Point-to-Point Wireless Bridge Configuration uses two units to brid

Ethernet or Token Ring Bridge xxiiiFigure 0.2 - Point-to-Multipoint Wireless BridgeWhen connecting three or more LANs (usually in different buildings

xxiv Ethernet or Token Ring Bridge Figure 0.3 - Infrastructure Extension with RepeatersWireless Bridges can be configured as repeaters to extend the

Ethernet or Token Ring Bridge xxv

Part 1 - Getting StartedPart 1 - Getting Started

Part 1 - Getting Started

Contents i About the Technical Reference Manual ... xiiTypographic

Chapter 1 - Installing the Ethernet or Token Ring Bridge for Ether-net1CHAPTER 1Installing the Bridge for Ethernet or Token RingThis chapter describes

1 - 2 Ethernet or Token Ring Bridge Before You StartAfter unpacking the system, make sure the following items are present and in good condition:n

Installing the Bridge for Ethernet or Token Ring 1 - 3InstallationThis section describes the procedures for installing the Aironet Wireless Bridge.I

1 - 4 Ethernet or Token Ring Bridge 2. Connect the lightning arrestor to one end of the low loss antenna cable.NOTE: The lightning arrestor should

Installing the Bridge for Ethernet or Token Ring 1 - 5 Installing the Console Port Cable1. Attach the Console Port cable to the Serial Port. Attach

1 - 6 Ethernet or Token Ring Bridge Installing the Ethernet ConnectionNOTE: If you are installing a Token Ring Bridge, proceed to page 1-8.The Eth

Installing the Bridge for Ethernet or Token Ring 1 - 7è To Attach the 10Base5 (Thicknet) Cabling:1. Make sure the unit is powered off.2. Attach the

1 - 8 Ethernet or Token Ring Bridge Installing the Token Ring ConnectionThe Token Ring Wireless Bridge supports three connection types:n Shielded

Installing the Bridge for Ethernet or Token Ring 1 - 9Attaching the AC/DC Power Pack and Powering On the Ethernet or Token RingWireless Bridge1. Ins

1 - 10 Ethernet or Token Ring Bridge Viewing the Indicator DisplaysTop Panel IndicatorsThe indicators are a set of displays located on the top pan

ii Contents Chapter 2 - Accessing the Console System ... 2-1 Access Methods ...

Installing the Bridge for Ethernet or Token Ring 1 - 11Table 1.1 - Top Panel Indicator DescriptionTypeIndicator DisplayDescriptionEthernet or Token

1 - 12 Ethernet or Token Ring Bridge Back Panel Indicators (Ethernet Only)The back panel indicators shown in Figure 1.9 are:n 10BaseT polarity: So

Chapter 2 - Accessing the Console System2CHAPTER 2Accessing the Console SystemThis chapter describes the methods used to access the Console system of

2 - 2 Ethernet or Token Ring Bridge Access MethodsThere are many ways in which you may configure and monitor the Ethernet or Token Ring Bridge. When

Accessing the Console System 2 - 3Each menu contains the following elements:n Title Line: Contains the product name, firmware version and menu name.

2 - 4 Ethernet or Token Ring Bridge Commands and InformationIf your selection is a command, you may be prompted for information before it executes.

Accessing the Console System 2 - 5Some configuration commands only allow the choice between two fixed values. When the menu item is selected, the oppo

2 - 6 Ethernet or Token Ring Bridge Command Line ModeAnother way to move within the Console is to enter commands directly from the Main Menu. Comma

Accessing the Console System 2 - 7While a telnet session is in progress, you may not use the Console Port to gain access to the menus. If any charac

2 - 8 Ethernet or Token Ring Bridge n Option: Contains the menu selections as a list of hyper-links. If the selection is a sub-menu, the selection

Contents iii Using the ConÞguration Radio IEEE 802.11 Menu ... 4-5Setting the Beacon

Accessing the Console System 2 - 9About the MenusPerform the following general functions using menus:n Configuration: Allows you to configure Ethernet

2 - 10 Ethernet or Token Ring Bridge Using the Configuration Console MenuThe Console system is configured using the Configuration Console Menu shown b

Accessing the Console System 2 - 11Setting the Communication Port Parameters (Port)Use the port option to set the following Ethernet or Token Ring B

2 - 12 Ethernet or Token Ring Bridge Setting Privilege Levels and Passwords (Rpassword, Wpassword)You can restrict access to the menus by setting p

Accessing the Console System 2 - 13è To Set a Privilege Level:1. Select Privilege from the Main Menu.Enter one of [off, readonly, write] : 2. Type t

2 - 14 Ethernet or Token Ring Bridge Enabling Linemode (Linemode)Enable linemode when working with telnet and terminal emulators that do not send c

Accessing the Console System 2 - 15Monitoring of the DTR SignalThe Ethernet or Token Ring Bridge monitors the state of the Data Termi-nal Ready (DTR

2 - 16 Ethernet or Token Ring Bridge

Part 2 - ConfigurationPart 2 - Configuration

Part 2 - Configuration

iv Contents Setting Up the Infrastructure Topology (Tring, Rring, Bridge) Token Ring Only ... 5-5Using the Token Ring Extended Menu ...

Chapter 3 - Before You Begin3 CHAPTER 3Before You BeginThis chapter provides a general introduction to the Configuration Menu and describes the proced

3 - 2 Ethernet or Token Ring Bridge Viewing the Configuration MenuOnce you have completed the installation, the next step is to use the Configuratio

Before You Begin 3 - 3STP: Used to configure the spanning tree protocol See Chapter 8 “Using the Spanning Tree Protocol”.More: Used to configure vendo

3 - 4 Ethernet or Token Ring Bridge n All: The entire configuration will be displayed. n Non-default: Only the configuration options that are differ

Chapter 4 - Configuring the Radio Network4CHAPTER 4Configuring the Radio NetworkThis chapter describes the procedures for configuring the Ethernet or Tok

4 - 2 Ethernet or Token Ring Bridge OverviewWhen configuring the radio network, all units should be configured while in close proximity to each other.

Configuring the Radio Network 4 - 3Using the Configuration Radio MenuThe radio network is configured using the Configuration Radio Menu. To access this

4 - 4 Ethernet or Token Ring Bridge Basic Rates (Basic_rates)Use the basic_rates option to set up the basic bit rates for all associating Ethernet o

Configuring the Radio Network 4 - 5Using the Configuration Radio IEEE 802.11 MenuSetting the Beacon Period (Beacon)The beacon interval is the time (i

4 - 6 Ethernet or Token Ring Bridge Adding IEEE 802.11 Management Packet Extensions (Extend)If this parameter is enabled, the Ethernet or Token Ring

Contents v Setting SNMP Trap Destinations (Trapdest) ... 7-6Specifying Community

Configuring the Radio Network 4 - 7EncapsulationThe Encap option and the related encapsulation table commands of Show, Add and Remove are of concern

4 - 8 Ethernet or Token Ring Bridge On an ethernet LAN, the data portion of a frame may be in one of two formats: DIX or DSAP/SSAP. The two formats

Configuring the Radio Network 4 - 9Running a Signal Strength Test (Strength)The strength option sends a packet once per second to each node in the a

4 - 10 Ethernet or Token Ring Bridge Running a Multicast Test (Multicast)The multicast option is used to test transmission conditions within local r

Configuring the Radio Network 4 - 11If the path to the target node was over the radio, a total number of radio retries necessary to complete the tes

4 - 12 Ethernet or Token Ring Bridge Viewing Errors (Errors)The errors option is used to view the Radio Error statistics that may have occurred duri

Configuring the Radio Network 4 - 13The Autotest procedure can be used to help determine the placement of repeater units. For example, at each prosp

4 - 14 Ethernet or Token Ring Bridge Setting Retry Transmission Time (Time_Retries, Count_Retries)These settings allow the user to establish a parti

Configuring the Radio Network 4 - 15Setting the Power Level (Power)This parameter may be used to reduce the power level of the radio trans-mitter do

4 - 16 Ethernet or Token Ring Bridge

vi Contents Using the STP ConÞguration Menu (Repeater Only) ... 8-17Viewing the Port Stat

Chapter 5 - Configuring the Ethernet Port5CHAPTER 5Configuring the Ethernet orToken Ring PortThis chapter describes the procedures for configuring the Et

5 - 2 Ethernet or Token Ring BridgeUsing the Configuration Ethernet or Token Ring MenuThe Ethernet or Token Ring Port is configured using the Configur

Configuring the Ethernet or Token Ring Port 5 - 3The active option should be disabled if the port on the Aironet Bridge is not going to be used. Thi

5 - 4 Ethernet or Token Ring BridgeSetting the Routing Method (Method) Token Ring OnlyThe Token Ring Bridge may be configured to operate with networ

Configuring the Ethernet or Token Ring Port 5 - 5Setting Up the Infrastructure Topology (Tring, Rring, Bridge) Token Ring OnlyWhen you use Token Rin

5 - 6 Ethernet or Token Ring BridgeThe Token Ring number and the radio ring numbers should be assigned by your network administrator since each rin

Configuring the Ethernet or Token Ring Port 5 - 7Early Token Release (Earlyrls) Token Ring OnlyThis option only appears when used with a 16 Mb ring.

5 - 8 Ethernet or Token Ring Bridge

Chapter 6 - Setting Network Identifiers6CHAPTER 6Setting Network IdentifiersThis chapter describes the procedures for setting the Ethernet or Token Ring

6 - 2 Ethernet or Token Ring Bridge Using the Configuration Ident MenuNetwork identifiers are entered using the Configuration Ident Menu shown below. T

Contents vii Chapter 11 - Using Filters ...11-1 Overview ...

Setting Network Identifiers 6 - 3NOTE: After the network ID is changed, the unit must be restarted either by powering it “Off” and then “On,” or by

6 - 4 Ethernet or Token Ring Bridge Configuring the IP Routing TableThe IP routing table is entered using the Configuration Ident Routing Menu shown b

Setting Network Identifiers 6 - 5The Flags column displays letters identifying the type of entry:n S: Entry is static (entered by operator)n N: Entr

6 - 6 Ethernet or Token Ring Bridge

Chapter 7 - Configuring SNMP7CHAPTER 7Configuring SNMPThis chapter describes how to configure the Ethernet or Token Ring Bridge for use with the Simple N

7 - 2 Ethernet or Token Ring Bridge OverviewThe Simple Network Management Protocol (SNMP) provides an indus-try standard mechanism for the exchange

Configuring SNMP 7 - 3Enabling the SNMP Agent (Enabled)The enabled option functions as an On/Off switch for the SNMP agent. The default setting is “

7 - 4 Ethernet or Token Ring Bridge An SNMP community consists of the following:n Name: The default set of communities is “Public, Proxy, Private,

Configuring SNMP 7 - 5NOTE: An error response will be returned to the NMS, if the NMS is trying a “set” request used with a community that has Read-

7 - 6 Ethernet or Token Ring Bridge Enabling Remote NMS to Change Community Setup (Remote)The remote option controls whether the section of the cus