AsantéBridge 1012 Users’ Guide
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Table of Contents Introduction i About This Manual ii Intended Audience iii Conventions Used In This Manual iii Tell Us What Your Think iv Technical Support iv Quick Start 1-1 Before You Start 1-2 Introducing the AsantéBridge 1-3 AsantéBridge Features 1-5 Quick View 1-6 AsantéBridge 1012 Front Panel 1-6 AsantéBridge 1012 Rear Panel 1-9 Interpreting LEDs 1-12 Installing the AsantéBridge 1012 1-13 Preparing for the Installation 1-13 What You’re Going to Do 1-14 Doing the Installation 1-14 The Next Step 1-2
Connecting to the AUI Port 2-10 Connecting to the RJ45 IN and Out Ports 2-12 Configuring a Redundant Link 2-14 Checking the Link 2-14 An Example Configuration 2-15 Setting Up Out-of-Band Links 2-17 Linking the Hubs Together 2-17 Connecting Your Asanté Management Station for Out-of-Band Management 2-18 Configuring Hub DIP Switches 2-20 Connecting a VT100 Terminal 2-21 Default Settings 2-22 AsantéBridge 1012 Local Management 3-1 Before you start 3-2 Bridge Diagnostics 3-3 Local Management Menu System 3-4
List of Figures Figure 1-1 The AsantéBridge 1012 page 1-3 Figure 1-2 Bridging between two segments page 1-4 Figure 1-3 AsantéBridge 1012 Front Panel page 1-6 Figure 1-4 AsantéBridge 1012 Front Panel page 1-8 Figure 1-5 AsantéBridge 1012 Rear Panel page 1-9 Figure 1-6 Interpreting LED Status Indicators page 1-12 Figure 1-7 Network Ready for Bridging page 1-13 Figure 1-8 Locating the AsantéBridge page 1-15 Figure 1-9 Rack-mounting the AsantéBridge page 1-16 Figure 1-10 Connecting to the External Port page 1-1
Figure 3-18 Editing the Forwarding Table page 3-31 Figure 3-19 Searching for an Address page 3-32 Figure 3-20 Bridge Filtering Table page 3-34 Figure 3-21 Resetting the Bridge page 3-36 Figure 3-23 Bridge Statistics page 3-38 Figure A-1 Dummy Entry page A-2 Figure B-1 Dummy Entry page B-3 Figure C-1 RJ-45 to RJ-21 Pinouts page C-2 Figure C-2 Single Device Link — Amphenol Connector to 8-Pin Modular Jack page C-3 Figure C-3 RJ-45 Wall Jack to Modular Jack Pinouts page C-4 Figure C-4 Crossover RJ-45 Cable page
Introduction
Introduction About This Manual This manual is divided into the following sections: Introduction The Introduction covers the intended audience, conventions used in this manual, questions addressed to the reader concerning this guide, and technical support information. Chapter 1 — Quick View An introduction to the AsantéBridge and installations instructions.
Intended Audience Intended Audience Conventions Used In This Manual This manual is intended for Ethernet local area network (LAN) administrators. Although it assumes some familiarity with the use of AsantéView 2.2 as a network management tool, the manual attempts to present information in a form understandable by people who do not have an in-depth understanding of network technology.
Introduction There’s always room for improvement and Asanté Technologies is always interested in your comments and suggestions about our product documentation.This is especially true for a beta manual like this one. Please take the time to review the manual as carefully as possible. We depend on your feedback to help us improve both our product and this manual. Tell Us What You Think If you take the time to make suggestions, we will take the time to read and consider them for new documentation releases.
1 Quick Start • Before You Start on page 1-2 • Introducing the AsantéBridge on page 1-3 • Quick View on page 1-6 • Installing the AsantéBridge 1012 on page 1-13
Chapter 1 — Quick Start Before You Start This chapter is designed to get you up and running with the minimum possible effort. Introducing the AsantéBridge tells you how the bridge functions and acquaints you with its key features. Quick View takes you on a tour of the front and rear panels of the AsantéBridge 1012, explaining the use and interpretation of all controls, connectors, and LEDs. Installing the AsantéBridge 1012 guides you through a simple installation process.
Introducing the AsantéBridge The AsantéBridge 1012 is an AsantéHub 1012 that has a transparent two port bridge contained in the same chassis.
Chapter 1 — Quick Start Thin Ethernet connected to hub 3in1 port AsantéHub 1012 Thin Ethernet connected to hub 3in1 port AsantéHub 1012 ASANTE RESET 0000944007B3 AsantéHub 1012 Thin Ethernet connected to hub 3in1 port AsantéHub 1012 10BaseT to network devices ASANTE RESET 0000944007B3 AsantéHub 1012 AsantéHub 1012 ASANTE RESET 10BaseT to network devices 0000944007B3 10BaseT to network devices Segment A 10Base5 backbone Bridge External Port connected to Segment A 10Base5 backbone AsantéBridge 1
Introducing the AsantéBridge AsantéBridge Features ❏ Fujitsu SPARClite RISC processor providing line-speed forwarding of data ❏ Expandable memory and FLASH EPROM enable easy upgrades to the bridge’s features and make the AsantéBridge an “Applications Engine” for future internetworking technologies.This investment protection guarantees that the AsantéBridge will be a valuable network addition for years to come.
Chapter 1 — Quick Start Before you install the AsantéBridge 1012, you should become familiar with both the front and rear panels.The following illustrations show the front and rear panels. Sit down in front of your unit and find each of the items shown in the illustrations, then locate the item in the following text. Quick View AsantéBridge 1012 Front Panel Look at the AsantéBridge front panel as shown in Figure 1-3. All controls and indicators are labeled with a brief definition.
Quick View SNMP LED Flashes when the SNMP agent module is installed in the AsantéBridge 1012. MSG LED If on, status messages are waiting; you must use AsantéView to read them. Hub Utilization LEDs This top row of eight LEDs indicates an approximation of hub segment (not bridge) bandwidth utilized at any given time.
Chapter 1 — Quick Start Bridge External Port Status LED There are three separate LEDs: RCV flashes when a packet is received on the external port. FWD flashes when a packet is forwarded from the hub port to the external port. COL flashes when a packet collision is detected on the bridge external port. Bridge Spanning Tree Status LEDs STATUS flashes when the bridge is still alive in the spanning tree configuration. STANDBY is on when the bridge is on standby or blocking in the spanning tree.
Quick View The AsantéBridge 1012 rear panel provides the following connectors: ❏ 50-pin Telco ❏ 3-in-1 Uplink (network) ❏ two LED status indicators for the uplink ❏ RS 232 port for PC or terminal connection ❏ dedicated AMS link ❏ external port for the bridge AsantéBridge 1012 Rear Panel Bridge External Port Link/Receive LED Bridge External Port Collision LED Bridge External Port AUI Connector Bridge/Hub RS 232 Port Bridge VT100 Local Management Port AMS Out-of-Band Link Ports Fan AC Power AC Line
Chapter 1 — Quick Start Bridge External Port AUI This AUI port is the external port for the bridge (not the hub), which is used to connect the bridge to a segment in your network.The actual connection should be made using a MAU with the appropriate network media connector. Bridge External Port Link/Receive LED This LED is on when another network segment is connected to the external bridge port via the AUI connector; flashes when packets are received on the port.
Quick View Set the switch on all other hubs in the daisychain to the UP position. Only one hub at the end of the daisychain can have this switch down. All others hubs in the chain must have it up. PC/Terminal DIP Switch This switch controls the configuration for the Bridge/Hub RS232 port and the AMS out-of-band link ports. How you set the switch depends on how you connect your Macintosh or PC running AsantéView Out-of-Band.
Chapter 1 — Quick Start Interpreting LEDs The AsantéBridge front panel LEDs provide status information on both overall device utilization and for specific configuration and fault conditions. Figure 1-6 shows you how to interpret the display.
Installing the AsantéBridge 1012 Installing the AsantéBridge 1012 Preparing for the Installation This section tells you how to quickly install your new AsantéBridge 1012 between two segments in a network and how to connect other network devices to the RJ45 ports. This is a very simple installation guide designed to get your AsantéBridge up and running with minimum effort.
Chapter 1 — Quick Start ❏ ❏ At least one device configured for connection to your Ethernet. We recommend that you use a Macintosh or PC with AsantéView 2.2 network management software installed, although you can use any device that normally connects to and communicates over your Ethernet network. An RJ45 extension cable to connect your network device to the AsantéBridge 1012.
Installing the AsantéBridge 1012 Positioning the AsantéBridge 1012 The AsantéBridge can be positioned on any flat surface (a desktop, table, or other work surface), or it can be mounted on a wall or in a rack.There are a few guidelines that should be followed: ❏ Place the unit within six feet of an AC outlet. ❏ The unit must be no more than 100 meters (328 feet) away from the network devices to be connected via RJ45 cables. ❏ Leave a two-inch clearance around the ventilation grills.
Chapter 1 — Quick Start Placing the Bridge on a Desktop Peel the protective strips from the self-adhesive feet and apply the feet in the four corners of the base of the unit. 1 2 Place the unit on a flat, stable surface. Wall or rack mounting the Bridge Mark the desired location on the wall or rack (see Appendix B,“Technical Specifications” for unit physical dimensions).
Installing the AsantéBridge 1012 Turning on and Pretesting the Bridge If you are installing more than one unit, you may want to repeat this procedure for each one before making any device or network connections. 1 2 1 Turning on the Bridge Attach the power cord to the socket on the rear panel, and connect it to an AC outlet. Turn on the power switch at the right rear panel. Evaluating the self-test pattern When you power up the AsantéBridge, it runs through a hardware and software self-test.
Chapter 1 — Quick Start 2 If the LINK/RECEIVE LED does not come on, use a narrow tool to reset the hub. (The Reset button is on the front panel.) The AsantéBridge reruns all diagnostics, and you should see the self-test LED display described in the previous step. If the test continues to fail, you may have a problem with the device connected to the AsantéBridge, the cabling between the unit and the device, or possibly with the AsantéBridge itself.
Installing the AsantéBridge 1012 3 Connect the MAU to the AsantéBridge external port as shown below. External Port 2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating THROUGH RJ21 10 BASE-T PORTS RS232 IN or OUT BNC 3-IN-1 UPLINK AUI AMS LINK END PARTITION TRAFFIC UP=PC DOWN=TERMINAL Spare Fuse in Fuse Holder Hub Port Figure 1-10 Connecting to the External Port 4 Connect the remaining backbone cable to another MAU, also with an AUI connector on the other end.
Chapter 1 — Quick Start Connecting Devices to the AsantéBridge 1012 Now that you have pretested your AsantéBridge and have connected it into your network as a bridge, the last step is to connect Ethernet devices to the hub portion of the unit.
Installing the AsantéBridge 1012 Using the rear panel RJ21 connector You can also access the twelve hub ports through a Telco punchdown block connected to the RJ21 connector on the rear of the AsantéBridge. You can connect some devices to the front panel RJ45 ports and some devices to the RJ21 port.The only restriction is that you cannot connect the same port in both places.
Chapter 1 — Quick Start Page 1-22
2 Connecting to the Network • Before You Start on page 2-2 • About Bridging on page 2-3 • Using the 3in1 Port on page 2-8 • Configuring a Redundant Link on page 2-14 • Setting Up Out-of-Band Links on page 2-17 • Connecting a VT100 Terminal on page 2-21 • Default Settings on page 2-22
Chapter 2 — Connecting to the Network Before You Start Page 2-2 This chapter provides detailed information about your AsantéBridge and some pointers on different ways you can connect it to your network. The chapter opens with About Bridging, a short introduction to transparent learning bridges and how these features are implemented in the AsantéBridge 1012. Using the 3in1 Port gives practical guidelines for connecting to your network using any of three possible methods: AUI, BNC, or an RJ45 In/Out link.
About Bridging About Bridging The AsantéBridge 1012 has combined the world of a transparent learning bridge with the intelligence of the AsantéHub 1012.This section gives you a brief introduction to bridging and how it is implemented by your new AsantéBridge. The purpose of any bridge is to provide a link between two discrete segments of a single network, enabling each segment to function as an independent network, except when packets must be sent from one segment to the other.
Chapter 2 — Connecting to the Network The more hubs and users added, the more traffic occurs on the backbone, until we eventually reach a point at which overall network performance begins to degrade. As a general rule, bridges are typically required when users begin to complain that response times are too great or file transfers are too slow.These symptoms are usually seen when overall utilization exceeds 40% on a regular basis.
About Bridging The transparent bridge shown here serves to isolate the two segments: Network traffic meant only for devices on segment A is limited to the backbone serving segment A.These packets are not passed across the bridge.Traffic on segment B is also restricted to that segment. Only packets originating on one segment that are intended for devices on the other segment (A to B and B to A) are passed across the bridge and carried by both backbones.
Chapter 2 — Connecting to the Network Dividing your network into two segments reduces your overall backbone traffic and improve network efficiency, but also introduces a certain element of risk: the bridge becomes the sole path between the two segments. If the bridge fails for any reason, devices on different segments will no longer be able to communicate with each other.
About Bridging Figure 2-3 Redundant bridging Internal bridge software will automatically designate one bridge as the “active” bridge and the other bridge as the “standby” or blocking bridge, preventing multiple transmissions of the same packet by both bridges. This software implements what is called a spanning tree algorithm and is commonly used in the configuration shown in Figure 2-3. The two bridges talk to each other periodically, checking each other’s status.
Chapter 2 — Connecting to the Network The 3in1 port is actually a single port with three connectors: an AUI, RJ45, and BNC. Port connection is made using one of the following: ❏ The AsantéBridge can automatically select a port connector to use; the connector selected depends on port configuration: If only one connector is connected, for example, the AUI, you select this port.
Using the 3in1 Port Thin Ethernet Backbone for Segment B connected to bridge external port with a MAU AsantéBridge 1012 2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating THROUGH RJ21 10 BASE-T PORTS AMS LINK RS232 IN or OUT BNC 3-IN-1 UPLINK END AUI UP=PC DOWN=TERMINAL PARTITION TRAFFIC Spare Fuse in Fuse Holder Thin Ethernet Backbone for Segment A connected to 3in1 Port BNC connector (bridge hub port) Terminator AsantéHub 1012 2A/250V Slow Blow Fuse Replace Only With Fuse of Same R
Chapter 2 — Connecting to the Network Connecting to the AUI Port The AUI port is typically used to interconnect hubs using a fiber or thick Ethernet backbone, as illustrated in Figure 2-5 and Figure 2-6. It can also be used to interconnect hubs using a variety of media, such as unshielded twisted-pair, depending on the external transceiver you connect to the port. A common approach is using two MAUs connected by attaching the transmit pair of one MAU to the receive pair of another MAU.
Using the 3in1 Port AsantéBridge 1012 2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating THROUGH RJ21 10 BASE-T PORTS RS232 IN or OUT BNC 3-IN-1 UPLINK AUI AMS LINK END UP=PC DOWN=TERMINAL PARTITION TRAFFIC Spare Fuse in Fuse Holder Drop Cable Tranceivers AsantéHub 1012 2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating THROUGH RJ21 10 BASE-T PORTS RS232 IN or OUT BNC 3-IN-1 UPLINK AUI AMS LINK END UP=PC DOWN=TERMINAL PARTITION TRAFFIC Spare Fuse in Fuse Holder Asant
Chapter 2 — Connecting to the Network You can connect an AsantéBridge to another hub using RJ45 extension cables to connect an RJ45 port on the front panel to the RJ45 connector of another hub’s 3in1 port.This method is called an in-band daisychain and offers an economical way to connect hubs together. However, there are some restrictions: ❏ You can daisychain a maximum of four hubs together.
Using the 3in1 Port Thin Ethernet Backbone for Segment B connected to bridge external port with a MAU AsantéBridge 1012 2A/250V Slow Blow Fuse Replace Only With Fuse of Same Rating THROUGH RJ21 10 BASE-T PORTS AMS LINK RS232 IN or OUT END AUI BNC 3-IN-1 UPLINK UP=PC DOWN=TERMINAL PARTITION TRAFFIC Spare Fuse in Fuse Holder RJ45 cable from 3in1 RJ45 OUT (hub bridge port, Segment A) to RJ45 front panel port on next hub in the chain AsantéHub 1012 2A/250V Slow Blow Fuse Replace Only With Fuse of
Chapter 2 — Connecting to the Network Configuring a Redundant Link One of the most common reasons for a loss of network services is damage to, or failure of, cabling interconnections. By taking advantage of the “Auto-sense” (The AsantéBridge 1012 automatically senses the presence of physical links connected to the 3in1 Uplink port), redundant network backbone links may be easily configured for increased network reliability.
Configuring a Redundant Link BNC: According to the priority scheme described above, BNC will not be the active uplink if either an AUI or 10T connection exists. Due to this ordering, if BNC is selected, it is assumed that this medium is the only type available. An Example Configuration There are different redundant link cabling schemes which can be used to provide increased network reliability.This example illustrates one possible scenario.
Chapter 2 — Connecting to the Network In Figure 2-8, there are three AsantéHubs and an AsantéBridge in the network.These devices have workstations, printers, etc. connected to their twelve front panel ports.These hubs (and their clients) communicate with each other and to devices on the main network backbone through the main hub (shown as the AsantéBridge in the illustration).They use 10T cabling to connect each of their 3in1 Uplink ports to a front panel port on the main hub.
Setting Up Out-of-Band Links Setting Up Out-of-Band Links Using AsantéView 2.2 Out-of-Band to manage your new AsantéBridge 1012 requires that you link your AsantéBridge 1012 into an out-of-band daisychain.This is very much like the in-band daisychain described earlier, except that this arrangement is for network management only and is not part of the normal network wiring.
Chapter 2 — Connecting to the Network Connecting Your Asanté Management Station for Out-ofBand Management Figure 2-9 shows only the out-of-band links in place.You still need to connect a Macintosh or PC running Asantéview 2.2 Out-of-Band software. Figure 2-10 shows the three ways that you can connect your Asanté Management Station for out-of-band management.
Setting Up Out-of-Band Links Recommended Method The recommended method for connecting for out-of-band management is with the AMS Link Extender included with your AsantéBridge 1012. 1 Connect the RJ45 connector on the AMS Link Extender to the AMS Link Port on the rear panel of the AsantéBridge 1012 as shown in Figure 2-11. You can use either port.
Chapter 2 — Connecting to the Network Configuring Hub DIP Switches There are two DIP switches located to the right of the AMS Link ports on the rear panel of the AsantéBridge 1012.These two switches are set up according to how the AsantéBridge is positioned in the out-of-band daisychain and how you are connecting your Asanté Management Station.
Connecting a VT100 Terminal Connecting a VT100 Terminal The bridge can be configured and monitored through a direct serial connection to the bridge RS232 port on the rear of the bridge unit. The bridge functions as a DCE; the terminal must be DTE. You must use an RS232 straight-through serial cable to connect the bridge serial port to your Macintosh or PC.The bridge connector requires a male DB9; a Macintosh requires a DIN8, and PCs may require DB9, DB15, or DB25 connectors.
Chapter 2 — Connecting to the Network Default Settings Table 2-2 lists the factory default settings. Table 2-2 AsantéHub 1012 Factory Default Settings Default To Modify All RJ45/RJ21 ports have Link Integrity testing If you are using AsantéHub with a pre-10BaseT device, enabled. Jumper JP8 is set OUT to enable disable Link Integrity. (You will not be able to obtain link Link Integrity testing on the 3-in-1 Uplink integrity status from disabled ports.
3 AsantéBridge 1012 Local Management • Before You Start on page 3-2 • Bridge Diagnostics on page 3-3 • Local Management Menu System on page 3-4 • General Help Menu on page 3-6 • Configuration Menu System on page 3-7 • Statistics Menu System on page 3-38
Chapter 3 — AsantéBridge 1012 Local Management Before You Start The AsantéBridge 1012 can automatically integrate itself into your network environment without any programming or other user intervention other than connecting to two network segments and powering it on. However, there are extensive management functions available through the local management port. To help you find your way to the information you need about these functions, use the following flow chart.
Bridge Diagnostics Bridge Diagnostics The AsantéBridge 1012 is equipped with on-board diagnostics that run when the bridge is powered on (cold start) or when reset, either from the front panel or with the Reset system command from the local management Configuration Menu. The diagnostics take a few seconds and are designed to check the overall health of the bridge and hub hardware and internal software. As the diagnostics run, the VT100 window will scroll, listing the separate tests and the results.
Chapter 3 — AsantéBridge 1012 Local Management All AsantéBridge 1012 functions can be configured using a VT100 terminal (or a Macintosh or PC running VT100 terminal emulation software). All necessary commands and functions are stored in bridge memory — no special software is required other than the terminal emulator if you are using a Mac or a PC. This section presents each bridge local management menu screen and provides definitions for each field on the screen.
Local Management Menu System 2 To disconnect from the AsantéBridge 1012, use the appropriate VT100 command.This command may vary depending upon what terminal emulation software you are using. Please see the documentation accompanying your emulation software for instructions. ❖ Important: Some areas of the local management menu system are password protected.
Chapter 3 — AsantéBridge 1012 Local Management General Help Menu The AsantéBridge 1012 VT100 local management port uses a variety of control characters (special keyboard characters) to control editing on screen.This help screen tells what editing commands are available and what they do. Figure 3-3 Local Management Help Window Enter control-z to return to the Local Management Menu.
Configuration Menu System The main configuration menu, accessed only after entering a password, provides submenus and commands for: Configuration Menu System Figure 3-4 Main Configuration Menu ❏ ❏ ❏ ❏ Checking and updating system information (text data contained in bridge memory) Defining a new password for the Configuration Menu Checking and updating the SNMP agent parameters Displaying and modifying the hub Out-of-Band Parameters Menu ❏ ❏ Accessing the Bridge Parameters Menu Resetting the bridge Ac
Chapter 3 — AsantéBridge 1012 Local Management 4 The Reset System item is a command. Selecting this item and pressing return opens a confirmation dialog. You must confirm that you want the unit reset before the command is actually executed. ❖ Important: Resetting the bridge also resets the hub. All packet data contained in hub or bridge buffers will be lost. 5 Page 3-8 Enter control-z to return to the previous menu without taking any action here.
Configuration Menu System The System Information menu stores text information in the bridge memory. System Information Menu Figure 3-5 System Information Window ❏ ❏ The Bridge/Hub MAC Address contains the physical address assigned to the bridge and hub.This field cannot be modified. The Name, Contact, and Location fields contain text and can be modified. To use the System Information menu, do the following: 1 Use the arrow keys to select the field to be modified and then press return.
Chapter 3 — AsantéBridge 1012 Local Management Access to all bridge configuration functions is password protected.The password is stored in bridge memory.The default password is Asanté. Be sure to enter it exactly as shown here; the password field is case sensitive. This menu is not accessible from AsantéView. Password Menu Figure 3-6 Password Menu ❖ Important: For security reasons, the current password is not displayed.
Configuration Menu System The bridge SNMP agent menu has the following four submenus: SNMP Agent Parameters Menu System Figure 3-7 SNMP Agent Parameters Menu ❏ TCP/IP Parameters, defining the bridge IP address, subnet mask, and default router IP address Software Update, defining the server IP address for a remote boot, the boot protocol to be used, the boot file name, and the update command itself Access SNMP Trap Receiver Table Access SNMP Community Name Table ❏ ❏ ❏ ❖ Note:The SNMP parameters apply
Chapter 3 — AsantéBridge 1012 Local Management TCP/IP Parameters Menu The IP address, subnet mask and default router IP address for the bridge and hub are set from this menu. Figure 3-8 TCP/IP Parameters Menu ❖ Important: You should understand how IP addressing works before you attempt to modify any of these parameters. ❖ The IP address, subnet mask, and default router address currently stored in bridge memory are shown in the CURRENT SETTING field.
Configuration Menu System 5 Go to the Configuration Menu and reset the bridge to put the changes into effect. Software Update Menu Figure 3-9 Software Update Menu The Software Update menu provides the following information: ❏ ❏ ❏ ❏ ❏ Tells the bridge to execute a boot operation and to get the boot image from a remote server.The server must be capable of supporting network file transfers using the tftp or bootp and tftp applications.
Chapter 3 — AsantéBridge 1012 Local Management About the Software Update function ❖ Important:The software update function is complex and should be understood before you attempt it. Please read through the following description before you use this command. ❖ The AsantéBridge uses this function to load new configuration parameters and image files from a server somewhere on the network that the bridge is connected to.
Configuration Menu System Instead, the bridge resets and then makes another attempt to download new software, using the same set of parameters it had before. This cycle continues until: ❏ The required configuration and image files are loaded or ❏ The cycle is interrupted by entering control-c from the VT100 Entering control-c also opens another window on the VT100, where the current software download parameters are displayed, plus some additional control fields.
Chapter 3 — AsantéBridge 1012 Local Management 6 Enter control-z to return to the SNMP Agent Parameter Menu without taking any action. If the software download process fails and you enter a control-c from the VT100, the AsantéBridge opens this window. Figure 3-10 System Update Status Window This window gives the currently defined SNMP and software update parameters.
Configuration Menu System If the update is not successful, entering a control-c stops the process and reopens the Update Status window, this time with all the fields open for editing.This enables you to either fix the cause of the update failure and restart the process or to abort the process altogether and tell the bridge to boot from its own PROM.
Chapter 3 — AsantéBridge 1012 Local Management SNMP Trap Receiver Table Figure 3-11 SNMP Trap Receiver Table You can define up to four trap receivers for the bridge.A valid trap receiver is a Macintosh or PC running AsantéView 2.0 or later. ❏ The IP ADDRESS field contains the trap receiver IP address currently stored in bridge memory. ❏ The COMMUNITY STRING field contains the string value currently stored in bridge memory.
Configuration Menu System 3 4 5 Press return to set the new value. Repeat steps 1-3 for any other fields you want to modify. Highlight the COMMUNITY STRING field for the IP address you want and press return to open the data entry bar. 6 Enter the new string; press to set the value. 7 Repeat steps for the other community string fields. field you want to modify. 8 Highlight the or to switch. 9 This is a toggle. Press the the arrow keys, highlight the 10 Again using field.
Chapter 3 — AsantéBridge 1012 Local Management This table allows you to control access to SNMP MIB objects. All data fields initially display the parameter values contained in bridge memory at the time this menu is opened. SNMP_COMMUNITY_STRING field This string provides names for the SNMP communities (logical groups of SNMP objects). Public and Private are the standard default values. The ACCESSING_MODE field specifies either Read Only or Read/ Write access for this community of objects.
Configuration Menu System Defines data communication and user password parameters for accessing the bridge using AsantéView Out-of-Band network management software and an RS 232 modem connection. Out-of-Band Parameters Menu Figure 3-13 Out-of-Band Parameters Menu ❏ ❏ ❏ The Out-of-Band Baud Rate sets up a modem for both incoming calls and outgoing calls. It can be set to a maximum of 9600 baud. The Out-of-Band Dial String is a placeholder only.
Chapter 3 — AsantéBridge 1012 Local Management Enter the new password and press return.You can enter as many as fifteen characters. 5 Page 3-22 Enter control-z to return to the Configuration Menu.
Configuration Menu System This menu provides submenus used to configure AsantéBridge 1012 features only.There are submenus for: ❏ Setting bridge spanning tree parameters ❏ Setting bridge port spanning tree parameters ❏ Accessing and defining entries in the bridge forwarding table ❏ Accessing and defining entries in the bridge filtering table Bridge Parameters Menu System Figure 3-14 Bridge Parameters Menu 1 Use the arrow keys to move the highlight bar to the submenu you want and press return.
Chapter 3 — AsantéBridge 1012 Local Management Spanning Tree Bridge Parameters Menu Figure 3-15 Spanning Tree Bridge Parameters Menu Only the fields not displayed in bold type can be edited; the boldface type fields are read only.
Configuration Menu System 1 These parameters can change rapidly depending on spanning tree activity.To update the window, enter control-r. Use the Up/Down arrow keys to select the field you want to modify; press return when it is selected. 2 Press control-u to erase the current data and then enter the new parameter in the data entry bar, then press return. 3 4 Repeat steps1-2 for any other fields you want to modify. Enter control-z to return to the Bridge Parameters Menu.
Chapter 3 — AsantéBridge 1012 Local Management Spanning Tree Port Setting Menu Figure 3-16 Spanning Tree Port Setting Menu The Spanning Tree Port Setting menu has the following fields: ❏ ❏ ❏ ❏ Page 3-26 Ext/Hub Port: enables or disables the external port or the hub side port linking one network segment to the bridge. Ext/Hub Port Priority: assigns a priority value to the port (external or hub side); used in determining the port state.
Configuration Menu System 4 Enter control-u to erase the field, enter the new value, and press return. 5 Enter control-z to return to the Bridge Parameters Menu. Bridge Forwarding Table About Forwarding Forwarding is the process of passing packets from one bridge port to the other.To do this, the bridge must know what devices are on each of the segments its ports are connected to.The bridge maintains this device location data in its forwarding table.
Chapter 3 — AsantéBridge 1012 Local Management ❏ ❏ ❏ ❏ ❏ Edit brings up the table editor, where you can add, delete, and modify Ethernet addresses Search opens the search utility, where you can look for a specific address or go to a specific page in the table Next Page brings up the next sequential page (if there is one) in the table Prev Page returns you to the preceding page Exit returns you to the Bridge Parameters Menu This table contains five classes of Ethernet addresses: ❏ Dynamic or “learned” by
Configuration Menu System The alphabetic portion of the field defines the type of entry.
Chapter 3 — AsantéBridge 1012 Local Management When a device on either segment transmits, its packets are read by the bridge.The bridge reads the source address contained in the packets and writes that address into the table as a dynamic entry with a tag associating it with the segment it was received on.Thereafter, when the bridge receives a packet on either segment, it will compare the destination address of that packet to the table entry.
Configuration Menu System Using the Edit Function Figure 3-18 Editing the Forwarding Table To use the Search Function, do the following: 1 Use the Left/Right arrow keys to select the Edit function. Press return. The table editor displays. Here you can add, delete, or modify table entries. 2 Use the Left/Right arrow keys to select the editing function you want and then press return. Add lets you add another address to the table.
Chapter 3 — AsantéBridge 1012 Local Management Using the Search Function Figure 3-19 Searching for an Address To use the Search Function, do the following: Page 3-32 1 Use the Left/Right arrow keys to select the function and then press return. The Search Function window displays. 2 Using the Left/Right arrow keys, select the search function you want. By Address is for searching for a specific Ethernet address.
Configuration Menu System Bridge Filtering Table About the Filtering Table The filtering table should be viewed as pipelined sets of parameters that determine whether any given packet is forwarded from one segment to the other. Each parameter set contains three ranges and an ON/OFF switch. The following flowchart shows packet flow in the pipeline.
Chapter 3 — AsantéBridge 1012 Local Management Each range within the set acts as a filter in a pipeline.A packet has to get past all three filters to completely traverse the pipeline and be forwarded (or discarded, according to how the filter mode is set). Figure 3-20 Bridge Filtering Table As many as ten range entries can be stored in the table. Incoming packets are checked against this table after they are checked against the forwarding table. ❏ Exit returns you to the Bridge Parameters Menu.
Configuration Menu System ❏ Status enables or disables the filtering function for this range of addresses. To use the Bridge Filtering Table, do the following: 1 Use the arrow keys to highlight the LO DST address field and press return. The current value in the field is displayed in the data entry bar at the bottom of the window. 2 Enter control-u to clear the entry bar and enter the new lower range limit for packet destination addresses for this parameter set. Press return when the entry is correct.
Chapter 3 — AsantéBridge 1012 Local Management You can reset the AsantéBridge 1012 in three different ways: ❏ Cycle the power.This resets both the bridge and hub portions of the device.The repeater is not affected. ❏ Push the Reset button on the front panel.This resets both hub and bridge. ❏ Send the Reset system command from the Configuration Menu.This resets both the bridge and the hub. Resetting the Bridge Figure 3-21 Resetting the Bridge 1 2 3 Use the arrow keys to select the Reset system command.
Configuration Menu System ❏ Erases static forwarding addresses configured for delete on reset ❏ Does not affect the password for the Configuration Menu ❏ Retains any new settings for IP address, IP mask, and default router IP address Page 3-37
Chapter 3 — AsantéBridge 1012 Local Management The AsantéBridge 1012 provides several counters that monitor traffic on both bridge ports. A password is not required to access the statistics counters. Just select the Bridge Statistics field on the Local Management Menu and press return.This opens the Bridge Port Statistics Menu, as shown in Figure 3-22. Statistics Menu System The counters displayed represent the total count for each category accumulated since the last reset or cold start (power-on).
A Support for Pre 10BaseT Devices
Appendix A — Support for Pre 10BaseT Devices This appendix provides guidelines for integrating non-10BaseT compatible devices for your Asanté 10BaseT Local Area Network. For a device that has an Ethernet card with an AUI port, simply obtain a TP-MAU (Media Attachment Unit) such as the Asanté 10T MAU.A TP-MAU is an external device which allows you to connect a 10BaseT RJ-45 connector to your AUI (DB-15) port.
B Technical Specifications
Appendix B — Technical Specifications This appendix describes the technical features of the AsantéBridge 1012. Standards Supported: IEEE 802.3 Ethernet specifications for thick (10Base5), thin (10Base2), and unshielded twisted pair (10BaseT) media IEEE 802.1d specifications for transparent bridging with spanning tree implementation Data Rate: 10 Mbps Maximum Cable Distances: 10BaseT (UTP): 100m (328 ft.) 10Base2 (thin): 200m (656 ft.) 10Base5 (thick): 50m (163 ft.
1 to show Uplink Link/Receive Status (rear panel) 3 to show received packets, forwarded packets, collisions on external bridge port 3 to show received packets, forwarded packets, collisions on hub bridge port 3 to show bridge status within a spanning tree Power Requirements: Input Voltage: 100-250 VAC, 47-63 Hz single phase; continuous voltage input range Input Current: 1.2A @ 100 VAC (Max.) 0.5A @ 220 VAC (Maximum) 0.
Appendix B — Technical Specifications Page B-4
C Pinouts and Cable Specifications
Appendix C — Pinouts and Cable Specifications RJ-45 to RJ-21 Pinouts (Amphenol to Modular Jack) The Amphenol modular 50-pin connector establishes connections to the 8-pin modular jack through the network (hub) and distribution (house) punchdown blocks as illustrated in Figure C-1. Wire jacket colors may vary.
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 50-pin cable connector 1 2 3 4 5 6 7 8 Hub Punchdown Block 8 Pin Modular Jack Figure C-2 Single Device Link — Amphenol Connector to 8-Pin Modular Jack Page C-3
Appendix C — Pinouts and Cable Specifications RJ-45 Modular Jack to Wall Jack Pinouts These pin numbers are for an Asanté 10BaseT card or MAU positioned correctly with the notch on the 8-pin modular jack down. Pin 1 is the leftmost pin, and pin 8 is the right-most pin.
AUI (DB-15) Pinouts Table C-1 AUI Pinouts Pin Circuit Signal Name 03 10 11 05 12 04 07 15 08 02 09 01 06 13 14 Shell DO+ DODO S DI+ DIDI S CO+ COCO S CI+ CICI S VC VP VS PG Data Out positive Data Out negative Data Out circuit Shield Data In circuit positive Data In circuit negative Data In circuit Shield Control Out positive (optional) Control Out negative (optional) Control Out Shield (optional) Control In positive Control In negative Control In Shield Voltage Common Voltage Plus Voltage Shield Protec
Appendix C — Pinouts and Cable Specifications Page C-6
AsantéBridge 1012 Index A Bridging between segments 2-4 A simple Ethernet network 2-3 Bridging between two segments 1-4 C AC Line Fuse 1-11 AC Power Connector 1-11 Access Mode field 3-19 Ageout Time 3-24 Classes of MAC addresses 3-28 Configuration 2-3 Configuring a Redundant Link 2-14 AMS Out-of-Band Link Ports 1-10 AsantéBridge Applications Engine 1-5 Features 1-5 Front Panel diagram 1-6 Rear Panel diagram 1-9 AsantéBridge 1012 logical representation 1-3 AUI Port Connecting to 2-10 B BNC Port Conn
AsantéBridge 1012 Index MSG 1-7 Port Link/Receive 1-7 Port Partition 1-7 Power 1-6 SNMP 1-7 Uplink Partition 1-7 3in1 Port Partition and Traffic 1-10 Forwarding table editing rules 3-28 Forwarding Table Mode Alphabetic Entries 3-29 Forwarding Table Mode Numeric Entries 3-29 Forwarding Table Search Function 3-32 freeze screen command 3-38 Fujitsu SPARClite RISC processor 1-5 LO DST address 3-35 G LO SRC Address 3-35 General Help 3-4, 3-6 LO Type 3-35 General Help Menu 3-6 Local Management Menu Syste
AsantéBridge 1012 Index P SRC Address 3-34 standards- based networking 1-5 Password 3-10 Statistics Menu System 3-38 Password Menu 3-10 Status field Filtering Table 3-35 PC/Terminal DIP Switch 1-11 Port 2-21 Status field, Filtering table 3-34 Port Link/Receive LEDs 1-7 Subnet mask field 3-12 Port Partition LEDs 1-7 Power LED 1-6 Powering Up and Pretesting the AsantéBridge 1-17 Switch On/Off 1-11 PC/Terminal DIP 1-11 Through/End DIP 1-10 R System boot-up 3-16 rap receiver IP address 3-17 Syst
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