Black Box LGB2003A User manual

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax [phone]
© Copyright 2005. Black Box Corporation. All rights reserved.

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Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
CUSTOMER
SUPPORT
INFORMATION
OCTOBER 2005
LGB2003A
Managed 24-Port 10/100/1000 Ethernet
Switch with 2 SFP Dual Media

FCC AND IC RFI STATEMENTS
1
FEDERAL COMMUNICATIONS COMMISSION
AND
INDUSTRY CANADA
RADIO FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used
properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio
communication. It has been tested and found to comply with the limits for a Class A computing device in
accordance with the specifications in Subpart B of Part 15 of FCC rules, which are designed to provide
reasonable protection against such interference when the equipment is operated in a commercial
environment. Operation of this equipment in a residential area is likely to cause interference, in which
case the user at his own expense will be required to take whatever measures may be necessary to correct
the interference.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio
Interference Regulation of Industry Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques
de la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada.

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
2
INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement)
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo, sótano
mojado o cerca de una alberca, etc..
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de
operación. Todo otro servicio deberá ser referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del aparato
eléctrico sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en
libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas
u otros aparatos (incluyendo amplificadores) que producen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de
operación, o como se indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos
colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de
ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.

TRADEMARKS USED IN THIS MANUAL
3
TRADEMARKS USED IN THIS MANUAL
DB2 and IBM are registered trademarks of International Business Machines Corporation.
Microsoft is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or
other countries.
Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
NOTE
The Managed 24-Port 10/100/1000 Ethernet Switch with 2 SFP Dual Media is called the
Giga Switch in the software screens and also in the screens shown in this manual.
Both names refer to the LGB2003A switch.

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
4
Contents
Chapter Page
1. Specifications .........................................................................................................................................................6
2. Overview.................................................................................................................................................................7
2.1 Introduction.................................................................................................................................................7
2.2 Components ................................................................................................................................................7
2.2.1 Front Panel .....................................................................................................................................7
2.2.2 Rear Panel.......................................................................................................................................8
2.3 What’s Included...........................................................................................................................................9
3. Installation ...........................................................................................................................................................10
3.1 Hardware and Cable Installation .............................................................................................................10
3.1.1 Installing the Optional Modules .................................................................................................10
3.1.2 Connecting the Cable ..................................................................................................................11
3.1.3 Powering On the Switch ..............................................................................................................11
3.1.4 Installing the Chassis on a Desktop ............................................................................................11
3.1.5 Installing the Chassis into a 19-Inch Wiring Closet Rail............................................................11
3.2 Cabling Requirements ..............................................................................................................................12
3.2.1 Twisted-Pair Ports .........................................................................................................................12
3.2.2 Fiber Ports.....................................................................................................................................12
3.2.3 VLAN Examples ...........................................................................................................................13
3.3 Management..............................................................................................................................................14
3.4 Assigning an IP Address............................................................................................................................14
3.5 Typical Applications ..................................................................................................................................15
4. Web-Based Management.....................................................................................................................................18
4.1 Home..........................................................................................................................................................20
4.2 Configuration ............................................................................................................................................20
4.2.1 System............................................................................................................................................20
4.2.2 Ports...............................................................................................................................................22
4.2.3 VLAN Mode..................................................................................................................................23
4.2.4 VLAN Group.................................................................................................................................25
4.2.5 PVID ..............................................................................................................................................28
4.2.6 Aggregation ..................................................................................................................................29
4.2.7 Mirror............................................................................................................................................30
4.2.8 Quality of Service .........................................................................................................................31
4.2.9 Bandwidth Management .............................................................................................................37
4.2.10 Trap Event.....................................................................................................................................40
4.2.11 Maximum Packet Length ............................................................................................................42
4.3 Monitoring.................................................................................................................................................43
4.3.1 Statistics Overview ........................................................................................................................43
4.3.2 Detailed Statistics..........................................................................................................................44
4.4 Maintenance ..............................................................................................................................................46
4.4.1 Status .............................................................................................................................................46
4.4.2 Warm Restart ................................................................................................................................55

CONTENTS
5
Chapter Page
4.4.3 Factory Default .............................................................................................................................56
4.4.4 Logout...........................................................................................................................................57
5. Troubleshooting ..................................................................................................................................................58
5.1 Problems You May Experience.................................................................................................................58
5.2 Calling Black Box ......................................................................................................................................59
5.3 Shipping and Packaging ...........................................................................................................................59

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
6
1. Specifications
Standards: IEEE 802.3/802.3ab/802.3u/802.3x/802.1q only
Speed: LGB2003A: 10/100/1000 Mbps; LGB200C-MLC, LGB200C-SLC10, LGB200C-SLC30: 1000 Mbps
Distance (Maximum): LGB2003A: 328 ft. (100 m) over Category 5 or 5e unshielded twisted-pair cable;
LGB200C-MLC: Up to 960 ft. (300 m) over 850-nm multimode fiber;
LGB200C-SLC10: Up to 6.3 mi. (10 km) over 1310-nm single-mode fiber;
LGB200C-SLC30: Up to 18.9 mi. (30 km) over 1550-nm single-mode fiber
Forwarding/Filtering Rate: 14,800 pps at 10 Mbps, 148,800 pps at 100 Mbps, 1,488,000 pps at 1000 Mbps
MAC Addresses: 8 K, 4K VLAN table entries
Flow Control: IEEE 802.3x compliant for full duplex, backpressure flow control for half-duplex
User Controls: Reset button
Connectors: LGB2003A: (24) 10/100/1000-Mbps twisted-pair RJ-45 female, (2) Gigabit twisted-pair/SFP fiber
slots for fiber modules, (1) power connector;
LGB200C-MLC, LGB200C-SLC10, LGB200C-SLC30: (2) LC
Indicators: (51) LEDs: (1) Power, (24) 10/100/1000-Mbps twisted-pair ports 1–24, (24) Link/Act,
(2) 1000-Mbps SFP fiber ports 23–24
Temperature Tolerance: 32 to 122°F (0 to 50°C)
Relative Humidity: Up to 90%
Power: 100–240 VAC, 50–60 Hz
Size: 1.7"H x 17.3"W x 8.2"D (4.3 x 43.9 x 20.8 cm)

CHAPTER 2: Overview
7
2. Overview
2.1 Introduction
The Managed 24-Port 10/100/1000 Ethernet Switch with 2 SFP (Small Fiber Port) Dual Media meets all IEEE
802.3/802.3ab/802.3u/802.3x/802.1q Gigabit and Fast Ethernet specifications. It has 24 10/100/1000-Mbps
twisted-pair ports and 2 Gigabit twisted-pair/SFP fiber slots for fiber modules. Connect 24 10/100/1000 twisted-
pair devices, 23 10/100/1000 twisted-pair and one fiber device, or 22 10/100/1000 twisted-pair and two fiber
devices to the switch. Manage the switch through an Ethernet port using Web-based management. The network
administrator can logon to the switch to monitor, configure, and control each port’s activity.
Ports 23 and 24 autodetect two media types: 10/100/1000-Mbps twisted pair and 1000-Mbps Small Fiber Port
(SFP) fiber. An SFP fiber transceiver module is used for high-speed connection expansion. The 1000-Mbps SFP
fiber transceivers are Gigabit Ethernet ports that fully comply with all IEEE 802.3z and 1000BASE-SX/LX
standards. The switch is compatible with the following optional fiber modules.
• LC Multimode Fiber Module (LGB200C-MLC) works with 850-nm multimode fiberoptic cable that’s up to
960 feet (300 m) long
• LC Single-Mode Fiber Module (LGB200C-SLC10) works with 1310-nm single-mode fiberoptic cable that’s
up to 6.3 miles (10 km) long
• LC Single-Mode Fiber Module (LGB200C-SLC30) works with 1550-nm single-mode fiberoptic cable that’s
up to 18.9 miles (30 km) long
The switch features QoS (Quality of Service), VLAN, and trunking. QoS enables the switch to support the ToS
field of an IP header (equal DSCP low 3 bits) on Layer 3 of network framework and six kinds of special network
transmission events on Layer 4. With VLAN, the switch supports port-based VLAN and IEEE802.1Q Tag VLAN.
It also supports 24 active VLANs and VLAN ID 1–4094. Port trunking allows one or more links to be aggregated
together to form a Link Aggregation Group by the static setting.
2.2 Components
2.2.1 FRONT PANEL
The 24 10/100/1000-Mbps twisted-pair ports and 2 Gigabit twisted-pair/SFP fiber slots for fiber modules are on
the switch’s front panel. The LED display area on the panel’s left side contains a Power LED, 24 10/100/
1000-Mbps twisted-pair ports LEDs, 24 Link/Act LEDs, and 2 1000-Mbps SFP fiber ports 23–24 LEDs. The
numbered components in Figure 2-1 correspond to the descriptions in Table 2-1.

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
8
Figure 2-1. Front panel.
Table 2-1. Front-panel indicators, connectors, and button.
Component Description
Power LED Lights when the power is on.
Link/Act LEDs Light when connection to remote device is good.
Blink when any traffic is present.
Off when the module connection is not good.
10/100/1000-Mbps LEDs Green when 1000 Mbps speed is active.
Amber when 100 Mbps speed is active.
Off when 10 Mbps speed is active.
1000-Mbps SFP fiber ports Light when connection to the remote device is good.
23–24 LEDs
Blink when any traffic is present.
Off when the module connection is not good.
Gigabit Ethernet Ports 24 RJ-45 female connectors attach to network devices.
SFP Fiber Ports Consists of 2 slots for fiber modules.
Reset button Pressing this button restores the system default setting.
2.2.2 REAR PANEL
The switch’s back panel features a receptacle for a 100–240-VAC, 50-/60-Hz power cord.
❼
❶
❷
❸❹
❺❻
❶
❹
❺
❻
❼
❷
❸

CHAPTER 2: Overview
9
2.3 What’s Included
Your package should include the following items. If anything is missing or damaged, contact Black Box at
724-746-5500.
• (1) Managed 24-Port 10/100/1000 Ethernet Switch with 2 SFP Dual Media
• (1) AC power cord
• (2) Mounting brackets
• (8) Screws
• (4) Rubber feet with adhesive backing
• (1) CD-ROM containing this user’s manual in PDF format

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
10
3. Installation
3.1 Hardware and Cable Installation
Before installing the switch, make sure you are wearing a grounding strap to avoid damage caused by
electrostatic discharge. Also, confirm that the power switch is off before you insert the power cord into the
power receptacle.
3.1.1 INSTALLING THE OPTIONAL MODULES
NOTE
If you are not installing modules in Ports 23–24, skip this section.
1. Verify that the SFP module is the right model and conforms to the chassis.
2. Slide the module into the slot as shown in Figure 3-1. Make sure that the module is properly seated against
the slot socket/connector.
Figure 3-1. Installing an optional SFP fiber transceiver in the switch.
3. Install the fiber optic cable (see Section 3.1.2) for network connection.
4. Repeat the above steps for the second module and slot, if needed.
5. Power on the switch.

CHAPTER 3: Installation
11
3.1.2 CONNECTING THE CABLE
The switch’s twisted-pair ports support MDI/MDI-X auto-crossover, so you can use either straight-through or
cross-pinned UTP cable.
Use Category 5 or 5e grade RJ-45 twisted-pair cable to connect up to 24 network devices (such as workstations
or servers) to the switch’s UTP ports.
Use 850-µm multimode, 1310-µm single-mode, or 1550-µm single-mode fiberoptic cable to connect the fiber
module to the network.
3.1.3 POWERING ON THE SWITCH
The switch supports a 100–240-VAC, 50–60-Hz power supply. The power supply will automatically convert the
local AC power source to DC power. It doesn’t matter whether any devices are plugged into the switch or not
when you power on the switch (including modules). Once the power is on, all LEDs (except for the Power
LED) will light immediately and then turn off. The Power LED will remain on.
After resetting, the bootloader will load the firmware into memory. This takes approximately 30 seconds. After
that, all LEDs will flash once and the switch will automatically run a self-test.
3.1.4 INSTALLING THE CHASSIS ON A DESKTOP
Attach the four included rubber feet to the switch’s bottom. Then place the switch on a desktop.
3.1.5 INSTALLING THE CHASSIS INTO A 19-INCH WIRING CLOSET RAIL
CAUTION
Allow extra space for proper air ventilation for the cooling fan on both sides of the
chassis.
1. Wear a grounding strap to guard against electrostatic discharge.
2. Position the mounting brackets (included) on the switch’s front panel.
3. Attach four of the supplied mounting screws (two on the left, two on the right) to the switch’s sides to hold
the bracket in place (see Figure 3-2).

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
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Figure 3-2. Chassis installation.
4. Position the chassis with mounting brackets attached in the 19-inch wiring closet rail.
5. Use the four remaining screws to connect the bracket-mounted chassis to the rail, then tighten the screws.
3.2 Cabling Requirements
3.2.1 TWISTED-PAIR PORTS
For either a Fast Ethernet or Gigabit Ethernet twisted-pair network connection, use Category 5 or 5e cable
that’s 328 feet (100 m) long or shorter. We recommend Category 5e cable for Gigabit Ethernet networks.
3.2.2 FIBER PORTS
Connect multimode fiber to the LGB200C-MLC module. Use single-mode fiber for the LGB200C-SLC10 or
LGB200C-SLC30.

CHAPTER 3: Installation
13
3.2.3 VLAN EXAMPLES
If VLAN is enabled and configured, each network node that can communicate with each other directly is
bound in the same VLAN area.
Example 1: Port-based VLAN
In Figure 3-3, VLAN is defined by what VLAN you are using. The switch supports both port-based VLAN and
tag-based VLAN. They are different in practical use, especially in physical location.
Figure 3-3. Port-based VLAN.
In this example:
• The same VLAN members can’t be located on different switches.
• Every VLAN member can’t access all other VLAN members.
• The switch manager has to assign different names for each VLAN group at one switch.
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media
VLAN 1 VLAN 2 VLAN 3 VLAN 4

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
14
Example 2. The same VLAN members can be at different switches with the same VID (see Figure 3-4)
Figure 3-4. Attribute-based VLAN diagram.
3.3 Management
Configure and monitor the switch in two ways: via the switch’s SNMP management port or via a Web browser.
Chapter 4 explains how to access and use the Web-based management interface. SNMP management is not
described in this manual since it depends on your network management system.
3.4 Assigning an IP Address
For IP address configuration, you need to type in three parameters: IP address, subnet mask, and default
gateway. Your system administrator can tell you what these values are for your network. See Figure 4-2 in
Chapter 4.
Managed 24-Port
10/100/1000 Ethernet
Switch with 2 SFP
Dual Media
Managed 24-Port
10/100/1000 Ethernet
Switch with 2 SFP
Dual Media
VLAN 1
VLAN 2
VLAN 3

CHAPTER 3: Installation
15
3.5 Typical Applications
Three sample setups are shown in Figures 3-5 through 3-7.
In Figure 3-5, the switch is connected to Gigabit Ethernet devices or segments via auto MDI-X. It also uses the
two fiber module slots for LC fiber connections.
Figure 3-5. Network connection between the remote site and the central site.
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media

MANAGED 24-PORT 10/100/1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA
16
Figure 3-6 shows a peer-to-peer connection.
Figure 3-6. Peer-to-peer network connection.
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media

CHAPTER 3: Installation
17
Figure 3-7 illustrates how the switch connects with other network devices and hosts.
Figure 3-7. Office network connection.
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media
Managed 24-Port 10/100/1000
Ethernet Switch with 2 SFP
Dual Media