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MDI-II 10/100 Managed Hub MDI-II 1x 2x 3x 4x 5x 6x 9x 8x 7x 10x 11x 12x Switch Module Installed Powe r 100M Collision Forward Int. Switch Ext. Switch Link/RX 123456788 1 0 1 1 1 2 ID 10M MDI-II MDI-II 1x 2x 3x 4x 5x 6x 9x 8x 7x 10x 11x 12x 13x 14x 15x 16x 17x 18x 21x 20x 19x 22x 23x 24x 10/100 Managed Hub Switch Module Installed Powe r 100M Collisi ...
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© 1999 Black Bo x Corporation All rights reserved. Printed in USA. Black Box and the Black Box logo are registered trademarks of Black Box Corporation. All other trademarks appearing in this manual are the property of their owners. This publication is protected by the copyright laws of the United States and other countries, with all rights reserve ...
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T able of Contents 10/100 Managed Hub Installation & User Guide Introduction ............................................................................................... 7 Unpacking the 10/100 Managed Hub ......................................... 7 Overview .................................................................................... ...
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4 10/100 Managed Hub Using Expansion Modules ...................................................................... 23 Expansion Module Overview ................................................... 23 Internal Bridge Function ...................................................... 23 External Bridge Function .......................................... ...
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5 4 Locking the Mini Console ............................................... 53 Unlocking the Mini Console ........................................... 54 Network Configuration ........................................................ 55 IP Address Configuration ................................................ 55 Subnet Mask ......................... ...
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6 10/100 Managed Hub 2/3 Port Bridge Module Control/Status ................................ 87 Redundant Link Control ....................................................... 90 Security Intrusion ................................................................. 94 Monitoring the Network ........................................................... 96 ...
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Introduction 7 Introduction Unpacking the 10/100 Managed Hub C heck that the following components have been included: • 10/100 Managed Hub • Rack Mount Bracket and Hardware • Rubber Feet • Cascade Cable • Power Cord • Installation & User Guide (this manual) Y our order has been provided with the safetest possible packaging. Inspect ...
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Black Box LH8124A - page 8
8 10/100 Managed Hub The LH81 12A-S managed client model shown below , includes an LED panel, 12 dual-speed auto sensing ports, 2 MDI-II ports, and a switch module expansion slot. The LH81 12A-S can be fully managed by any master model. 10/100 Managed Hub (LH8112A-S) 12-port Client 10/100 Managed Hub LH8124A/LH8124A-S The twenty-four port models ar ...
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Introduction 9 Key Features The 10/100 Managed Hub series has many advanced features: 10/100Mbps Auto Sensing Ports All ports in the 10/100 Managed Hub series are dual speed auto sensing, including the MDI-II ports. Hubs automatically detect the transmission speed and set the port accordingly . Stackability Every model in the 10/100 Managed Hub ser ...
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10 10/100 Managed Hub RMON Probe Capability The Remote Network Monitoring (RMON) probe is an instrument that exists for the purpose of managing a network. The goals of the RMON probe are described in the following sections: Offline Operation, Proac- tive Monitoring, Problem Detection and Reporting, V alue Added Data, and Multiple Managers. The 10/1 ...
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Introduction 11 Redundant Link Capacity Redundant links can be configured enabling up to 24 pairs in a hub. For each pair of redundant links one port must be set as the primary and active, the other as backup and isolated. If the primary port fails, it is isolated and the backup port is set to primary and active. Address T racking Capability The 10 ...
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Black Box LH8124A - page 12
12 10/100 Managed Hub Front Panel Overview: Clients An LED panel, 12 dual-speed, auto sensing ports, switch module installed LED, and 2 MDI-II shared ports are on the front panel of the unit. See below . An LED panel, 24 dual-speed, auto sensing ports, switch module installed LED, and 2 MDI-II shared ports are on the front panel of the unit. See be ...
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Black Box LH8124A - page 13
Introduction 13 LED Indication The hub’ s LEDs indicate status information for the device, its ports for both segments (10Mbps and 100Mbps), and switch status. LED Indicators 12 Por t Po wer 100M Collision Forward Int. Switch Ext. Switch Link/RX 1 2345678 9 1 0 1 1 1 2 13 14 15 16 17 18 19 20 21 22 23 24 ID 10M Po wer 100M Collision Forward Int. ...
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Black Box LH8124A - page 14
14 10/100 Managed Hub For warding LED* indicator meaning For ward Status Int Ext Meaning LED Switch Switch 100M On On Off A 10Mbps transmission being received by 100Mbps segment through the internal switch 100M On Off On A 10Mbps transmission being received by 100Mbps segment through the external switch 10M On On Of f A 100Mbps transmission being r ...
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Introduction 15 • Internal Switch (Bridge): The Internal Switch LED is always on when the internal switch (bridge) function is active and forwarding the data. • External Switch (Bridge): The External Switch LED is on when data is being forwarded from one segment to another segment through the external switch port. • Hub ID: Each linked hub is ...
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Black Box LH8124A - page 16
16 10/100 Managed Hub Mini Console The Mini Console is a high definition display with console keys that enables you to easily monitor and configure the system. The Mini Console provides watch diagnostic functions, including port settings, status monitoring, traf fic utilization, collision, and error rate. W ith the Mini Console, you can configure e ...
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Installation 17 Chapter 1 Installation Choosing a Location The 10/100 Managed Hub location should be less than 100 meters from servers, workstations, or switches. The 10/100 Managed Hub can be desk mounted or rack mounted. CAUTION: Categor y 5 UTP/STP cables are environmentally sensitive. Make sure that the cable route is not too close to electrica ...
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18 10/100 Managed Hub Cascading hubs with cascade cables to make a stack is as simple as connecting the Up port of one hub to the Down port of another hub as illustrated below . Cascade Por ts NOTE: T o connect the cascade cable, the Up port on one hub connects to the Down port of another hub. Constructing a Management Hub Stack A stack can be cons ...
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Installation 19 • Console Management Refer to Chapter 4: Console Management • W eb-Based Management Refer to the Network Management Guide • SNMP Management Refer to the Network Management Guide Client Hub Role Client hubs supply the stack with additional ports (12/24) and an addi- tional expansion module slot. Client hubs can be positioned ab ...
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20 10/100 Managed Hub meters for 10Mbps connections. All ports are hot pluggable. It is recom- mended you label each cable to identify the device or port at each end. Connecting Devices Connecting W orkstations Install either a 10BASE-T or a 100BASE-TX Fast Ethernet Network Interface Card into each workstation if not already installed. Using a UTP/ ...
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Black Box LH8124A - page 21
Installation 21 Connecting Fast Ethernet Switching Hubs Connect 100Mbps devices using UTP/STP Cat 5 cables with RJ-45 connectors, maximum length 5 meters, enabling sending/receiving to other fast Ethernet switching hubs. By default, each port is set to auto sensing mode. The 10/100 Managed Hub can detect a connected 100BASE-TX device and transmit/r ...
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22 10/100 Managed Hub ...
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Using Expansion Modules 23 Chapter 2 Using Expansion Modules Expansion Module Over view Expansion modules provide additional functions such as internal bridging of 10Mbps and 100Mbps segments and extended distances between devices. The available modules are: • Module LH8100C-2TX: 2 port Bridge or 10/100BASE-TX Switch Module • Module LH8100C-2FX ...
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Black Box LH8124A - page 24
24 10/100 Managed Hub Backpressur e (flow control) When packets are passed from 100Mbps segments to 10Mbps segments the flow is restricted due to the lesser capacity of the 10Mbps segment causing backpressure and resulting in dropped packets. W ith flow control or backpressure enabled, packets are made to wait until the flow is unrestricted before ...
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Black Box LH8124A - page 25
Using Expansion Modules 25 2. Remove the power from the hub by disconnecting the power cable from the AC outlet. 3. Remove the installed bridge module or blank cover of the expansion module slot (not the NMU slot, only the bottom slot is available) by turning the two knobs on the front counterclockwise as shown below . Removing the Blank Module Pan ...
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26 10/100 Managed Hub 10. For a hub stack with a master present, you must configure the software for the installed bridge module to enable the internal bridge function because the software default setting is disabled. The default software setting will not allow the internal bridge function to enable. The software must be configured using a master h ...
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Black Box LH8124A - page 27
Using Expansion Modules 27 FX Module LED Indicators The LEDs on each module indicate port activity . All LEDs are green. • Link: On, indicates a link is up. • TX: On, indicates a transmission in progress. • RX: On, indicates receiving data. • FDX: On, indicates the port is set to full duplex . Off, indicates the port is set to half duplex . ...
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Black Box LH8124A - page 28
28 10/100 Managed Hub Module LH8100C-2TX Module LH8100C-2TX is either an internal bridge for bridging the internal 10Mbps and 100Mbps segments or an external 10/100BASE-TX distance extender with MDI-X and MDI-II interfaces using an RJ-45 cable. Only one of these functions can be enabled at one time. The internal or external bridge must be enabled o ...
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Black Box LH8124A - page 29
Using Expansion Modules 29 Jumpers: Module LH8100C-2TX 1 JP18 2 3 1 JP16 2 3 JP15 JP14 JP13 JP12 JP11 JP10 JP9 JP8 JP7 JP6 JP5 JP4 JP3 JP2 JP1 JP18 Backpressure 2-3 EXT SW 1-2 INT SW JP1 I JP16 Disable Enable 1-2 2-3 ...
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Black Box LH8124A - page 30
30 10/100 Managed Hub Module LH8100C-3TX Module LH8100C-3TX is a 3-port bridge module with a two port internal bridge for bridging 10Mbps and 100Mbps segments and an external 10/100BASE-TX distance extender with MDI-X and MDI-II interfaces using an RJ-45 cable. Both of these functions can be enabled at one time, in fact, the distance extender is al ...
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Black Box LH8124A - page 31
Using Expansion Modules 31 Jumpers: Module LH8100C-3TX 3 2 1 3 2 1 JP7 JP6 JP5 JP4 JP2 JP1 2-3 JP4 – JP6 Int Sw Enable 1-2 Int Sw Disable JP2 2-3 JP7 Backpressure 1-2 Backpressure dis JP1, ...
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Black Box LH8124A - page 32
32 10/100 Managed Hub Module LH8100C-2FX Module LH8100C-2FX provides a two port internal bridge for bridging 10Mbps and 100Mbps segments or 100BASE-FX distance extender with SC type connectors for fiber cable. The internal bridge must be enabled with on board jumpers before installation. The external distance extender is enabled by default. Module ...
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Black Box LH8124A - page 33
Using Expansion Modules 33 Jumpers: Module LH8100C-2FX 3 JP19 2 1 3 JP1 2 1 3 JP17 2 1 JP16 JP15 JP14 JP13 JP12 JP11 JP10 JP9 JP8 JP7 JP6 JP5 JP4 JP3 JP2 JP1 JP19 Backpressure 2-3 EXT SW 1-2 INT SW JP2 I JP17 Disable Enable 1-2 2-3 HDX FDX 1-2 2-3 ...
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Black Box LH8124A - page 34
34 10/100 Managed Hub Module LH8100C-3FX Module LH8100C-3FX provides a two port internal bridge for bridging 10Mbps and 100Mbps segments and 100BASE-FX distance extender with SC type connectors and fiber cable. The internal bridge must be enabled or disabled with on board jumpers before installation. The external distance extender is always enabled ...
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Black Box LH8124A - page 35
Using Expansion Modules 35 Jumpers: Module LH8100C-3FX 3 JP1 2 1 1 2 3 3 2 1 JP8 JP7 JP6 JP5 JP3 JP2 JP1 Backpressure Backpressure dis 2-3 Int Sw Enable 1-2 Int Sw Disable JP3 & JP5-7 JP2, JP8 2-3 1-2 HDX FDX 1-2 2-3 ...
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Black Box LH8124A - page 36
36 10/100 Managed Hub ...
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Black Box LH8124A - page 37
Managing Through the Mini Console 37 Chapter 3 Managing Through the Mini Console Mini Console Over view The Mini Console is a high definition display panel that provides brilliant text and graphics. It displays information about the system, port status or other information depending on the menu selected. Extensive configura- tion settings can be vi ...
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38 10/100 Managed Hub VFD Display The V acuum Florescent Display (VFD) shows the following port and system information: %: The relative percentage of utilization or collision. Port Number Indicators: Indicates the number of a port, and by brightness, indicates status information. See the next table. Port Indicator Frame: Indicates which ports are d ...
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Black Box LH8124A - page 39
Managing Through the Mini Console 39 Por t Indicator Definition The port number indicators define the port status and activity by the way they are illuminated, such as ON, OFF , flashing and with a frame around the numbers. The following table summarizes the definition of the port indicators. Port Indicator Definitions Por t No. (Green) Frame (Ambe ...
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Black Box LH8124A - page 40
40 10/100 Managed Hub The following summarizes the Console Key functions. Prev: Cycles back through the current menu level. Next: Cycles forward through the current menu level. Enter: Selects the displayed menu item or when pressed and held changes a setting. Holding down the Enter key changes the default setting and places an “ * ” before the ...
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Black Box LH8124A - page 41
Managing Through the Mini Console 41 PORT ST A TUS ALL POR TS 10M POR TS 100M PORTS LINK UP LINK DOWN POLAR NORMAL POLAR REVERS NO AUTO P AR TS AUTO P AR T ENABLE DISABLE PORT 1~POR T N Press “ENTER” to show the status applied to the port PORT CONFIG SYS LOCKED **** PSW ALL PORT ENABLED PORT 1~POR T N DISABLED AUTO-NEGO 10BASE-T 100BASE-X UNIT ...
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Black Box LH8124A - page 42
42 10/100 Managed Hub Observing Network T raffic Y ou can observe the network traffic in the Mini Console with the Utiliza- tion menu. Seven columns of gauge bars, which shift continuously from left to right as time elapses, represent the utilization rate of each segment. The gauge bar columns on the left are for the 10Mbps segment and the gauge ba ...
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Black Box LH8124A - page 43
Managing Through the Mini Console 43 Selecting a Group Y ou can select a group to monitor and configure when there are managed hubs cascaded to the master hub. “ Group ” refers to a hub in the stack, the range is 1~6 when the maximum number of hubs exist in the stack. Y ou can manage each hub using the Mini Console. T o select a group: 1. From ...
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Black Box LH8124A - page 44
44 10/100 Managed Hub Monitoring Port Statistics Y ou can monitor statistics of individual ports or all ports simultaneously using the Statistics Menu. The table, “ Port Statistics Counters ” lists the available counters that can be monitored. Port Statistic Counters Counter T ype Displayed READABLE FRAMES The total number of frames received on ...
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Black Box LH8124A - page 45
Managing Through the Mini Console 45 AUTO P AR T T otal number of times the por t was auto-partitioned. TOT AL ERRORS T otal errors received by the port including FCS errors, Align errors, Frame T oo Long, Short Events, Late Events, V er y Long Events and Rate Mismatch. Selecting a Port to Monitor 1. Press <Next> until Statistics displays in ...
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Black Box LH8124A - page 46
46 10/100 Managed Hub 3. Press <Next> to move the “ port cursor ” to the desired port, the port number displays in the Message Zone, as shown below . Scrolling to a Port 4. Press <Enter> to confirm the selection of the port; and go to the counter type selection menu. The name of the port statistics counter “ READABLE FRM ” displ ...
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Managing Through the Mini Console 47 Monitoring Port Detail Information Y ou can monitor detailed port information for all ports at once or for individual ports using the Port Status menu. Monitoring All Ports Status T o view all port status: 1. Press <Next> until “ POR T ST A TUS ” displays in the Message Zone. The current selected group ...
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48 10/100 Managed Hub 3. Press Enter to view all the ports ’ status at once. The figure below illustrates 10Mbps ports 1, 2, 3, 4, 7, 10, 13, 14, 15, 16, 19 & 22. 10Mbps Por ts 4. Press <Next> to view the status of other ports. 100Mbps ports status displays. In the figure below , ports 5, 6, 8, 9, 1 1, 12, 17, 18, 20, 21, 23, & 24 a ...
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Black Box LH8124A - page 49
Managing Through the Mini Console 49 POLAR REVERSE The receiver (Rx) polarity has been automatically crossed by the hub. NO AUTO P AR T Indicates all por ts not auto partitioned. AUTO P AR T Indicates all Auto Par titioned ports. ENABLED Indicates all Enabled por ts. DISABLED Indicates all Disabled ports. Monitoring Individual Port Status T o view ...
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50 10/100 Managed Hub Configuring Ports The POR T CONFIG menu enables you to configure individual ports or all ports at one time. Y ou are prompted to enter the password when the console is locked. The ports must be configured to match the devices at the other end of the link. Settings such as speed must be identical. All ports are set to default t ...
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Managing Through the Mini Console 51 Auto Negotiate Por ts 3. Press <Next> to scroll through each configuration item. 4. Press Enter to apply the configuration displayed in the Message Zone to all the ports. Configuring a single port 1. W ith “ POR T CONFIG ” displayed in the Message Zone, press <Enter> to go to the port selection m ...
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52 10/100 Managed Hub 4. Press <Next> to scroll through each configuration item. 5. Press <Enter> to apply the currently displayed configuration to the port. The applied configuration is indicated by an asterisk sign displayed before the name of the configuration in the Message Zone as shown below , otherwise, the asterisk sign does not ...
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Black Box LH8124A - page 53
Managing Through the Mini Console 53 Configuring the Unit 1. Select UNIT CONFIGURA TION from the Main Menu. Unit Config Main Menu 2. Press <Enter> to go to the UNIT CONFIGURA TION menu. 3. Press <Next> to scroll through each configuration option. 4. Press <Enter> to go to the next level of the configuration menu. The following lis ...
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54 10/100 Managed Hub Unlocked State 1. Select UNIT CONFIGURA TION from the Main Menu. 2. Press <Enter> to go to the UNIT CONFIGURA TION menu. 3. Console Lock displays in the Message Zone. 4. Press <Next> to toggle to lock. 5. Press <Enter> to set the configuration, a lock sign appears in the display . ID Master WWW SNMP O-O-B 10 ...
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Black Box LH8124A - page 55
Managing Through the Mini Console 55 3. Y ou are prompted to enter the password. 4. Enter the password. The console is unlocked. Network Configuration The Network Configuration menu allows setting the hub ’ s IP Address, Subnet Mask and Default Gateway . The hub ’ s Network Configurations must be set to compatible settings with LAN configuratio ...
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Black Box LH8124A - page 56
56 10/100 Managed Hub IP Address 5. Press <Prev> to increase the digit ( “ 0 ” ~ “ 9 ” ). NOTE: Use “0” for a blank space, for example: entering “000” equals “0” or entering “022” equals “22”. 6. Press Enter to set the digit and move the cursor to the next digit. The current digit is blinking. 7. Repeat steps 1 &am ...
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Black Box LH8124A - page 57
Managing Through the Mini Console 57 Subnet Mask Select the SUBNET MASK option and follow the same procedure for setting an IP Address. Default Gateway Select the DEF AUL T GA TEW A Y option and follow the same procedure for setting an IP Address. Out-of-Band Configuration Y ou can set the Out-of-Band configuration with the EIA232 Config Menu, whic ...
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Black Box LH8124A - page 58
58 10/100 Managed Hub word displays as four asterisks. The current digit blinks, indicating it can be configured. 1. Scroll to UNIT CONFIG and press <Enter>. Y ou are prompted to enter the password, **** PSW appears in the message zone and the first “ * ” flashes. Press <Next> to increase the digit. 2. Unlock the control panel by en ...
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Black Box LH8124A - page 59
Managing Through the Mini Console 59 Restar ting the Hub The hub will use your configurations to set up the system when it restarts. Restart the system with the Restart Menu using the following steps: 1. Scroll to UNIT CONFIG and press <Enter>. 2. Scroll to SYS REST AR T and press <Enter>. 3. Press <Enter> at “ CONTINUE ” or p ...
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Black Box LH8124A - page 60
60 10/100 Managed Hub System Information Menu The System Information menu displays information about the device version, the device software version, and the network configuration settings (IP Address, Subnet Mask and Default Gateway). System Information The following system information is cycled through in the Mini Console: System Information HW V ...
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Black Box LH8124A - page 61
Master Hub Configuration & Console Management 61 Chapter 4 Master Hub Configuration and Console Management This Chapter is only for Master Hub configuration and management. When installing the 10/100 Managed Hub the first time, it is necessary to config- ure the hub through the Console Interface. Connecting to the Console Inter face Y ou can se ...
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Black Box LH8124A - page 62
62 10/100 Managed Hub 5. Press <ENTER> 2 or 3 times and the login panel to the management interface and login menu appears as shown below . See Menu Convention in the next section to understand the menu fields and commands of the console management interface. Menu Convention This section describes the types of fields and commands of console m ...
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Black Box LH8124A - page 63
Master Hub Configuration & Console Management 63 Y ou can move the cursor between items in menus using the T ab key or arrow keys. Console Management Menu conventions are listed below: Menu T itle: The menu title briefly describes the purpose of the menu. Check Box: Use to set a configuration item that is enclosed in parentheses “ ( ) ” . Y ...
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Black Box LH8124A - page 64
64 10/100 Managed Hub Using the Console Program Ensure that the VT -100 compatible terminal parameters are set. Start the VT -100 compatible terminal and connect power to the hub. If the hub is already powered, press <Enter>, one or more times to bring up the login menu. The login menu appears similar to the illustration below . Logging In Wh ...
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Black Box LH8124A - page 65
Master Hub Configuration & Console Management 65 Main Menu The management functions of 10/100 Managed Hub are available from the Main Menu. A management function is selected by pressing <T ab> or Up/Down Arrow keys to highlight the function of interest and pressing Enter . The Main Menu appears with the first item highlighted as below . M ...
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Black Box LH8124A - page 66
66 10/100 Managed Hub User Authentication: Allows you to configure user names and passwords. System Utility: Allows you to configure software downloads, restart options, and T elnet session timeout intervals. Monitoring System Information The System Information Menu displays information about the system. Y ou can view the system software and hardwa ...
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Black Box LH8124A - page 67
Master Hub Configuration & Console Management 67 System Description: A textual description of the entity . This also includes the name and version identification of the system ’ s hardware type, software operating system, and networking software. System Object ID: This ID is the vendor ’ s authoritative identification of the network managem ...
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Black Box LH8124A - page 68
68 10/100 Managed Hub Setting up for Management The Management Setup Menu is used to configure 10/100 Managed Hub for the available management functions. Management Setup Menu Network Configuration: Allows you to configure the IP Address, Subnet Mask, Default Gateway , and SLIP Address. Serial Port Configuration: Allows you to configure the serial ...
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Black Box LH8124A - page 69
Master Hub Configuration & Console Management 69 Network Configuration There are several ways or Network Interfaces that you can use to config- ure the hub. Y ou must set up the hub using Local Console management to enable the other management capabilities: • Mini Console (see Chapter 3) • Local Console/Remote T elnet • W eb-Based Managem ...
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Black Box LH8124A - page 70
70 10/100 Managed Hub Interface: The current interface number; 1=Ethernet, 2=SLIP Interface T ype: The interface type — Ethernet or SLIP MAC Address: Displays the hub ’ s MAC Address, for example: 00-E0-95-00-00-05. IP Address: The dotted decimal address assigned to the 10/100 Managed Hub. Subnet Mask: The dotted decimal subnet mask assigned to ...
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Black Box LH8124A - page 71
Master Hub Configuration & Console Management 71 Out-of-Band Serial Configuration Menu The baud rate, character size, parity , and stop bits are read only and not configurable. Baud Rate: The current serial port baud rate that can be configured from the Serial Port Configuration Menu. Character Size: 8 bits character size Parity: None Stop Bits ...
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Black Box LH8124A - page 72
72 10/100 Managed Hub Serial Port Configuration The Serial Port Configuration Menu is used to configure Console Mode connections to a VT -100 terminal emulator and Out-of-Band serial connections to a modem. Console Mode T o view the Console Mode settings, select “ Console ” Mode in the Serial Port Configurations. Console Mode settings are read ...
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Black Box LH8124A - page 73
Master Hub Configuration & Console Management 73 Out-of-Band Operation Mode Baud Rate: The baud rate can be configured as one from 2400bps, 4800bps, 9600bps, 19200bps. The default is 9600. Character Size: 8 bits character size Parity: No parity . Stop Bits: 1 stop bit Select <Save> to retain the new configuration. The new configuration ta ...
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Black Box LH8124A - page 74
74 10/100 Managed Hub SNMP Community Setup The SNMP Community Setup Menu is used to set up SNMP communi- ties. Up to six Community Names, Access Rights, and Status can be configured. Y ou can add, delete, or edit SNMP community names, set the access rights and status. Community names are case sensitive, Private and private are considered different. ...
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Black Box LH8124A - page 75
Master Hub Configuration & Console Management 75 T o add a community name: 1. Highlight an index number and press <Enter>. An editable panel is presented, “ SNMP Community Menu -2 ” . 2. Enter a name in the Input field. 3. Set the access right and status. 4. Highlight ADD, and press <Enter>, the new name is entered and displayed ...
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Black Box LH8124A - page 76
76 10/100 Managed Hub T rap Receiver Setup T raps are messages sent across the network to an SNMP Network Manager . These messages alert the network manager for network manage- ment purposes. Y ou can set up six trap receivers. Y ou can configure the following: Community Name: The authorized SNMP community string of the remote network manager (maxi ...
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Black Box LH8124A - page 77
Master Hub Configuration & Console Management 77 T o set up a trap receiver community name: 1. Select a T rap Community Name and press <Enter> to open the configuration menu for the selected index as shown below . Configuring a Community Name The Community Name can be edited, the IP Address can be configured, and the Status can be set to ...
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Black Box LH8124A - page 78
78 10/100 Managed Hub W eb-Based Management Configuration The Management Capability Setup Menu allows enabling or disabling W eb-Based Management and Out-of-Band Management. Use the space bar to toggle between settings. Select Save and press <Enter > to save the setting. Management Capability Setup Menu This menu lets you enable or disable W ...
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Black Box LH8124A - page 79
Master Hub Configuration & Console Management 79 Out-of-Band Management Control Y ou can enable or disable Out-of-Band management. • When connecting with local console, this setting takes effect immediately . • When connecting with T elnet, the system must be restarted before the setting takes effect. W eb-Based Management Configuration ...
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Black Box LH8124A - page 80
80 10/100 Managed Hub T rap Filter Selecting this option presents the T rap Filter Menu as shown below . T rap Filter Menu This menu lets you enable or disable trap filters for those traps defined by RFC1215 and RFC1516. Marking a trap filter disables the trap and no traps are sent for the specified trap. The default is all traps enabled. ...
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Black Box LH8124A - page 81
Master Hub Configuration & Console Management 81 Controlling Devices The Device Control Menu displays the configurable device sub menus. Device Control Menu Repeater Group Control/Status : Allows you to read and configure all the hubs in a stack. Repeater Port Control/Status: Allows you to read and configure ports on any hub in a stack. 2/3-Por ...
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Black Box LH8124A - page 82
82 10/100 Managed Hub Repeater Gr oup Control/Status The Repeater Group Control/Status displays status information for groups and allows enabling or disabling a group as well as naming and resetting the group. Repeater Group Control/Status Group Number: The ID number of a hub in the stack; the range is 1~6. Group Status Port Capacity: The maximum n ...
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Black Box LH8124A - page 83
Master Hub Configuration & Console Management 83 Group Last Changed: The value of system uptime since any of the following conditions occurred: • hub cold or warm-started • this instance of group was created (such as, when a device or module was added to the system) • a change in the value of hub operational status • ports were added or ...
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Black Box LH8124A - page 84
84 10/100 Managed Hub Group Reset All, some or none of the group ’ s function can be changed by selecting one of these options: NOTE: The selected option takes effect after SA VE is executed. • No Reset: None of these are reset. • Reset All: The function logic and counters of the group will be reset. This is identical to cold restart. • Res ...
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Black Box LH8124A - page 85
Master Hub Configuration & Console Management 85 Repeater Port Contr ol/Status The Repeater Port Control/Status displays status information for each port, of each linked repeater , and allows enabling/disabling, setting the speed, and enabling/disabling link status change notification for ports. Repeater Por t Control/Status The Repeater Port C ...
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Black Box LH8124A - page 86
86 10/100 Managed Hub Link Status: The current link status of the port. • Link Down: Link pulses are not detected on this port. • Link Up: Link pulses are being received on this port. NOTE: When the port link test function is disabled, the Port Link Status always r eturns Link Up for ports. Polarity Status: The current polarity link status of t ...
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Black Box LH8124A - page 87
Master Hub Configuration & Console Management 87 Link T est: Enable or disable link testing. Speed Control: The port speed. The port automatically connects to the 10Mbps or 100Mbps segment based on its port speed. • Auto Negotiate: The speed is detected and the duplex mode is forced to half duplex. • Force 10-TP: The port speed is forced to ...
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Black Box LH8124A - page 88
88 10/100 Managed Hub Group Number: The hub ID number assigned to the stack. (1 to 6) Bridge Module Status: Displays the current read only settings. Bridge Description: A description of the characteristics of this bridge module. • LH8100C-2TX Bridge or 10/100BASE-TX Distance Extender • LH8100C-3TX Bridge and 10/100BASE-TX Distance Extender • ...
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Black Box LH8124A - page 89
Master Hub Configuration & Console Management 89 Bridge Module Control This control lists the configurable functions and provides option fields; use Ctrl + S to toggle between options. External Function Admin State: The default value is Disable. • Enable: Enables the external bridge function. • Disable: Disables external distance extender f ...
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Black Box LH8124A - page 90
90 10/100 Managed Hub Redundant Link Control The Redundant Link Control menu allows configuring up to 24 pairs of redundant links. A redundant pair consists of any two physically linked ports in the stack, where one is the primary link port and the other is the secondary link port. The primary link is the active link between two devices and the sec ...
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Black Box LH8124A - page 91
Master Hub Configuration & Console Management 91 Primary Link Port: This object identifies the port number of the primary link for a given redundant link pair . Secondary Link Group: This object identifies the hub ID of the secondary link for a given redundant link pair . Secondary Link Port: This object identifies the port number of the second ...
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Black Box LH8124A - page 92
92 10/100 Managed Hub • Suspend: Indicates that the active ports are disabled and the redundant link function is temporarily suspended until you set its state to enable. NOTE: The suspend state does not cause the port to be switched over . • Invalid: Purge the configuration of a redundant link pair from the system database. • Return-to-primar ...
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Black Box LH8124A - page 93
Master Hub Configuration & Console Management 93 Configuring Redundant Link Control Editing a Link Pair Y ou can edit a Link Pair by entering the Link Pair number (of an existing Link Pair) and reconfiguring the rest of the columns, then select Save; the Link Pair is updated to the new settings. Deleting a Link Pair Y ou can delete a Link Pair ...
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Black Box LH8124A - page 94
94 10/100 Managed Hub Security Intrusion The Security Intrusion Control/Status Menu allows setting up security features. Security Intrusion Control/Status Menu The intrusion control enables you to set up secure ports that allow access by a single authorized MAC address. Group Number: The hub ID number that is assigned to the 10/100 Managed Hub (1-6 ...
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Black Box LH8124A - page 95
Master Hub Configuration & Console Management 95 • Invalid: Purge the security intrusion control configuration for the current port from the system database. Intrusion Authentication Address Auto Learn • Enable: The hub learns the MAC address of the first device from which this port receives data. After learning the MAC address, the auto le ...
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Black Box LH8124A - page 96
96 10/100 Managed Hub Monitoring the Network Statistic counters can be monitored for each repeater group and its ports. The Monitoring Network Menu displays the monitoring sub menus. Monitoring Network Menu Repeater Statistics Information: Contains Hub statistics such as Tx collisions, total frames and total errors and total octets for both 10Mbps ...
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Black Box LH8124A - page 97
Master Hub Configuration & Console Management 97 Broadcast Storm Protection: Monitor the broadcast counters of each hub port to detect if broadcast storming exists in the network. Broadcast Storm Detected: Each hub port or optional module port which causes the broadcast storm displays. Repeater Statistics Information Selecting this option prese ...
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Black Box LH8124A - page 98
98 10/100 Managed Hub Y ou can monitor the statistics in Absolute or Relative counters. The default is Absolute counters. Repeater Statistics Information Menu (Relative) T otal Tx Collisions: The number of transmission collisions that have occurred in this hub. T otal Frames: The number of frames received in this hub. T otal Errors: T otal errors r ...
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Black Box LH8124A - page 99
Master Hub Configuration & Console Management 99 Repeater Gr oup Statistics Information The Repeater Group Statistics Information Menu displays statistics counters for each group. Absolute Repeater Group Statistics Information Menu (Absolute) Statistics information counters for the current hub (Group Number). Counters are displayed in Absolute ...
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Black Box LH8124A - page 100
100 10/100 Managed Hub Relative Repeater Group Statistics Information Menu (Relative) T otal Frames: The number of frames of valid frame length that have been received on the ports of this hub and not including FCS Error and Collision Event. T otal Octets: The total number of octets contained in the valid frames that have been received on the ports ...
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Black Box LH8124A - page 101
Master Hub Configuration & Console Management 101 Repeater Port Statistics Information The Repeater Port Statistics Information Menu shows statistics in Absolute and Relative values. Absolute Repeater Port Statistics Infor mation Menu (Absolute) The Repeater Port Statistics Information Menu displays counter informa- tion for the current port of ...
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Black Box LH8124A - page 102
102 10/100 Managed Hub Relative Repeater Port Statistics Information Menu (Relative) Display Mode: Relative counters represent the values collected since the relative mode was selected. Absolute values represent the value collected since system start. Group Number: The ID number of a hub in the stack. (1 to 6) Port Number: Port number of selected g ...
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Black Box LH8124A - page 103
Master Hub Configuration & Console Management 103 FCS Errors: The total number of packets received by the port that had a bad Frame Check Sequence. Alignment Errors: T otal Alignment Errors frames within the proper size (64 to 1518 octets) received by the port. Frame T oo Long: T otal frames received by the port that were longer than 1518 octet ...
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Black Box LH8124A - page 104
104 10/100 Managed Hub transmissions. This counter is incremented by one each time that a port automatically isolates as a consequence of false carrier events. The conditions which cause a port to automatically isolate are defined by the transition from the False Carrier state to the Link Unstable state. The port automatically recovers. Symbol Erro ...
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Black Box LH8124A - page 105
Master Hub Configuration & Console Management 105 Address T racking Information The Address T racking Information Menu provides per port based node tracking capability (MAC address based). This capability provides the basic traffic analysis function to diagnose network problems, such as Intrusion. The node tracking function records the source M ...
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Black Box LH8124A - page 106
106 10/100 Managed Hub Source MAC Address (00-E0-95-00-00-00 for example) in the tracking list contains the value that is given by the Last Source Address for this port. This list can contain 15 entries. The list does not age out; the first entries are deleted to accommodate new entries when the list is full. Address T racking Information Menu (lis ...
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Black Box LH8124A - page 107
Master Hub Configuration & Console Management 107 Address Sear ch Information Selecting this option presents the Address Search Information Menu as shown below . Address Search Information Menu The 10/100 Managed Hub provides per segment based source (MAC address) matching capability . The active address tracking capability is used to watch for ...
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Black Box LH8124A - page 108
108 10/100 Managed Hub Address Search Status • In Use: A management station has obtained ownership. • Not in Use: No other management station has obtained ownership. A management station first retrieves the values of the appropriate instances of the Address Search Lock and Address Search Status objects, periodically repeating the retrieval if n ...
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Black Box LH8124A - page 109
Master Hub Configuration & Console Management 109 Broadcast Storm Pr otection The Hub periodically monitors the broadcast counters of each hub port to detect a broadcast storm condition. If a hub port is detected to be causing a broadcast storm, it is automatically partitioned and a trap is sent to the network manager . The Hub continually moni ...
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Black Box LH8124A - page 110
110 10/100 Managed Hub Optional Module Broadcast Packet Rate Threshold: The number of broadcast packets received on a given optional module per second. The range is 0 to 14,880 packets per second. Port Broadcast Packet Rate Threshold: The number of broadcast packets received on a given port per second. The range is 0 to 14,880 packets per second. B ...
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Black Box LH8124A - page 111
Master Hub Configuration & Console Management 111 Formula for calculating Broadcast packet rate Broadcast packet rate = Broadcast packet received Sampling Inter val in Seconds Broadcast Storm Detected This menu displays a list of ports with a detected Broadcast Storm. Broadcast Storm Detected Menu Each broadcast storm is detected and the hub an ...
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Black Box LH8124A - page 112
112 10/100 Managed Hub User Authentication The User Authentication Menu is used to assign user login names, passwords and read/write privileges. The Mini Console password can be configured in the User Authentication Menu. User Authentication Menu T o define each user authentication, select an index number and press <Enter>. Use the ADD comman ...
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Black Box LH8124A - page 113
Master Hub Configuration & Console Management 113 User Authentication Menu (editable) User Authentication Menu (updated) Select the index number first and press Enter . Enter a user name of up to 12 characters and a password of up to 6 characters, specify read/write privilege and then press <Enter>. ...
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Black Box LH8124A - page 114
114 10/100 Managed Hub System Utility The System Utility Menu lets you download microcode, restart the Hub, reset the Hub to the factory default, set the login time-outs, configure the upload settings and request an upload. System Utility Menu System Download: System downloads are used to update system software or replace existing software that has ...
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Black Box LH8124A - page 115
Master Hub Configuration & Console Management 115 System Download The System Download Menu enables reading Boot Sever Information from a remote BOOTP Server and to download system configuration files, W eb Server database information and system software from a remote TFTP Server . T o download software check Bootp Request, select the appropriat ...
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Black Box LH8124A - page 116
116 10/100 Managed Hub 2. Perform a cold restart on the system. Y ou should perform a code download only to update existing software or if existing code has become corrupted. Before performing a system download, make sure that you know the IP address of your TFTP server and the location of the files on the server . NOTE: Use the following naming co ...
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Black Box LH8124A - page 117
Master Hub Configuration & Console Management 117 System Restar t Menu Y ou can restart the system at any time without losing configuration settings, except in the case of a download. When you select Execute and then select <Enter>, a warning message informs the user that system restart is going to be performed right now . W arm: A warm r ...
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Black Box LH8124A - page 118
118 10/100 Managed Hub Factory Reset The Factory Reset Menu allows resetting 10/100 Managed Hub to the original factory settings. All user configurations will be lost. A Confirm Messages displays before the hub is reset so the user can abort the factory reset. Factor y Reset Menu The Factory Reset Menu lets you return all Hub settings to the origin ...
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Black Box LH8124A - page 119
Master Hub Configuration & Console Management 119 2. Select how the user wants the user authentication configuration processed during a factory reset: • Not Reset: Current user authentication configuration is saved. • Reset to factory default: Current user authentication configuration returns to factory defaults. 3. Select Execute and press ...
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Black Box LH8124A - page 120
120 10/100 Managed Hub Configuration Upload Setting 10/100 Managed Hub network management provides the capability to upload the hub configuration data to the remote server in binary format. Y ou can upload your configuration files and save as a backup in case you need to restore your system settings. Configuration Upload Setting Menu Enter the TFTP ...
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Black Box LH8124A - page 121
Master Hub Configuration & Console Management 121 Configuration Upload Request/Status Configuration Upload Request This menu enables you to submit a request for a configuration file upload and view the status of a download. Select Submit to make the Upload Request. TFTP Server IP Address: The IP address of the server where the configuration fil ...
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Black Box LH8124A - page 122
122 10/100 Managed Hub Upload Status: The status of the data transfer with regard to errors. • No Error: The upload was successfully stored in the specified configuration file. • No-Such-File: The path specified in the Configuration Filename field cannot be found on the TFTP Server . • Access V iolation: The file specified Configuration Filen ...
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Black Box LH8124A - page 123
Technical Information 123 Chapter 5 T echnical Information Product Specifications Standards Compliance IEEE 802.3 10BASE-T , 10BASE5 Ethernet IEEE 802.3u 100BASE-TX Ethernet Number of Ports 12/24 auto-sensing 10/100M Ethernet (RJ-45) ports Display Panel Master: V acuum Fluorescent Display (VFD) providing extensive network status information utiliza ...
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Black Box LH8124A - page 124
124 10/100 Managed Hub Smart Mini Console Configuration, device/port management, and network statistics monitoring (Master only) Three keys on the front panel to perform for all the Mini Console functions VFD (V acuum Fluorescent Display) panel displays text & graphic information Key Management Features (through W eb and SNMP) Master/Client man ...
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Black Box LH8124A - page 125
Technical Information 125 Power Requirements 100 - 240 V AC, 50/60 Hz Internal universal power supply Environment Operating T emperature: 10 ° to 40 ° C Storage T emperature: -25 ° to 70 ° C Operating Humidity: 8% to 80% non- condensing Safety Regulations CUL (UL & CSA) EMI Certifications CE Mark FCC Class A VCCI Class 1 Dimensions W x D x ...
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Black Box LH8124A - page 126
126 10/100 Managed Hub Agency Compliance Product Safety and Compliance Statements This equipment complies with the following requirements: • UL • CSA • TUV • EN60950 (safety) • FCC Part 15, Class A • EN55022 Class A (emissions) • EN50082-1 (immunity) • IEC 825-1 Classification Class 1 Laser Product Radio Frequency Interfer ence Stat ...
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Black Box LH8124A - page 127
Technical Information 127 Electrical Safety Statement Normas Oficiales Mexicanas (NOM) INSTRUCCIONES DE SEGURIDAD 1. T odas las instrucciones de seguridad y operaci ó n deber á n ser le í das antes de que el aparato el é ctrico sea operado. 2. Las instrucciones de seguridad y operaci ó n deber á n ser guardadas para referencia futura. 3. T od ...
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Black Box LH8124A - page 128
128 10/100 Managed Hub 1 1. El aparato el é ctrico deber á ser connectado a una fuente de poder s ó lo del tipo descrito en el instructivo de operaci ó n, o como se indique en el aparato. 12. Precauci ó n debe ser tomada de tal manera que la tierra fisica y la polarizaci ó n del equipo no sea eliminada. 13. Los cables de la fuente de poder de ...
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Black Box LH8124A - page 129
Appendix 129 Appendix Mini Console Menu T ree UTILIZA TION GROUP SELECT GROUP 1~GROUP N ST A TISTICS PORT ST A TUS ALL PORTS HW VER SW VER IP ADDRESS SUBNET MASK DEF AULT GA TEW A Y 10M PORTS 100M PORTS LINK UP LINK DOWN POLAR NORMAL POLAR REVERS PORT 1~POR T N 1200 2400 4800 9600 19200 38400 ALL PORTS PORT 1~POR T N READABLE FRM READABLE OCT FCS E ...
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Black Box LH8124A - page 130
130 10/100 Managed Hub T roubleshooting the Network Q: The local-console ‘ login screen ’ does not come up sometimes when a terminal (PC running terminal emulation) is connected to already booted master hub. Why? A: The screen must be refreshed, when the 10/100 Managed Hub is running and the terminal emulator is started. Pressing Ctrl + R refre ...
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Black Box LH8124A - page 131
Appendix 131 Q: Is there a loop detection and isolation feature available in 10/100 Managed Hub, in case two switch modules (internal bridging enabled on the hardware) are installed in the same stack? A: No. The stack will go into a loop even before the software has booted. Therefore, the only control is on hardware (jumpers on the PC board). Q: In ...
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Black Box LH8124A - page 132
5660-810001-002 A 6/99 © Copyright 1999. Black Box Corporation. All rights reserved. 1000 P ark Drive • Lawr ence, P A 15055-1018 • 724-746-5500 • F ax 724-746-0746 ...
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