Black Box LGB708A-R3 User manual

Provides eight 10/100/1000BASE-T(X) ports plus
two Gigabit SFP open slots.
Use where space is limited to upgrade network capacity.
8-Port Gigabit Web Smart Switch
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax
724-746-0746 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence,
PA 15055-1018 • Web site: www.blackbox.com • E-mail: [e-mail]
Customer
Support
Information
LGB708A-R3
LGB708A-R3-US

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FCC and IC RFI Statements/NOM Statement
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.
Normas Oficiales Mexicanas (NOM)
Electrical Safety Statement
INSTRUCCIONES DE SEGURIDAD
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.

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NOM Statement
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
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.

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NOM Statement
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.

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Trademarks Used in this Manual
Trademarks Used in this Manual
Black Box and the Double Diamond logo are registered trademarks of
BB Technologies, Inc.
Any other trademarks mentioned in this manual are acknowledged to be
the property of the trademark owners.

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Table of Contents
Table of Contents
1. Specifications ..............................................................................................7
2. Overview ..............................................................................................9
2.1 Introduction.......................................................................................9
2.2 Web Management Features ..............................................................9
2.3 What’s Included...............................................................................10
2.4 Hardware Description ......................................................................10
2.4.1 Front Panel...........................................................................10
2.4.2 Rear Panel ............................................................................11
3. Hardware Installation ................................................................................12
4. Software Description.................................................................................13
4.1 Configuration...................................................................................14
4.1.1 System .................................................................................14
4.1.2 Ports ....................................................................................16
4.1.3 VL AN ...................................................................................19
4.1.4 Aggregation........................................................................ 22
4.1.5 RSTP.................................................................................... 23
4.1.6 802.1x ..................................................................................26
4.1.7 IGMP Snooping................................................................... 30
4.1.8 Mirroring..............................................................................31
4.1.9 QoS ......................................................................................33
4.1.10 Storm Control ......................................................................37
4.2 Monitoring...................................................................................... 38
4.2.1 Statistics Overview .............................................................. 38
4.2.2 Detailed Statistics ................................................................ 39
4.2.3 RSTP Status ......................................................................... 39
4.2.4 IGMP Status .........................................................................41
4.2.5 VeriPHY................................................................................41
4.2.6 Ping......................................................................................43
5. Maintenance ............................................................................................47
5.1 Warm Restart...................................................................................47
5.2 Factory Default ................................................................................47
5.3 Software Upload..............................................................................47
5.4 Configuration File Transfer .............................................................. 48
5.5 Logout ........................................................................................... 48

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Chapter 1: Specifications
1. Specifications
Buffer
Memory
176 KB
Jumbo Frames 9.6 K
MAC
Addresses
8 K
Smart
Features
VLAN: 16;
Trunk Groups: 4;
Quality of Service;
IGMP Snooping;
RSTP;
Rate Limiting;
802.1x Port-Based Security;
Management:
Port Mirroring,
Password-Protected Access,
Port Settings,
Web-Based Management,
Graphic User Interface
Standards IEEE 802.3 10BASE-T,
IEEE 802.3u 100BASE-TX,
IEEE 802.ab 1000BASE-T,
IEEE 802.3z 1000BASE-SX/LX,
IEEE 802.3x flow control,
IEEE 802.1x port-based network access control,
IEEE 802.1Q VLAN tagging,
IEEE 802.3ad port aggregation,
IEEE 802.1d spanning tree protocol,
IEEE 802.1w rapid spanning tree protocol,
IEEE 802.1p class of service, priority protocols
Transmission
Method
Store-and-Forward
Connectors (8) RJ-45 10/100/1000BASE-T(X), (2) Gigabit SFP open slots
Indicators (17) LEDs: Per port: (1) Link/Act LED, (1) 1000M LED;
Per unit: (1) Power LED
Power 100–240 VAC, 50–60 Hz;
Consumption: 12 watts (max.)
Dimensions 1.7"H x 8.9"W x 4.9"D x (4.4 x 22.8 x 12.4 cm)
Weight 2.1 lb. (0.95 kg)

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Chapter 1: Specifications
Approvals Switch and power supply: FCC, CE, RoHS;
Only the power supply has UL;
EN55022:2010:Class A;
IEC61000-3-2:2005+A1:2008+A2:2009;
IEC61000-3-3:2008;
EN55024:2010;
IEC61000-4-2:2008;
IEC61000-4-3:2006+A1:2007+A2:2010;
IEC61000-4.4:2004+A1:2010;
IEC61000-4-5:2005;
IEC61000-4-6:2008;
IEC61000-4-8:2009;
IEC61000-4-11:2004;
EN60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013-S

Chapter
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Chapter 2: Overview
2.1 Introduction
The LGB708A-R3 switch has eight 10/100/1000BASE-T(X) ports plus two Gigabit
SFP open slots. It’s easy to install and performs well in an environment where
traffic is on the network and the number of users increases continuously. The
compact desktop size was specifically designed for small to medium workgroups.
It can be installed where space is limited; plus, it provides smooth network
migration and easy upgrade to network capacity.
In addition, the switch features QoS (Quality of Service), Spanning Tree, VLAN,
Port Trunking, Port Security, and IGMP Snooping capability via the intelligent
software. Use it for both metro-LAN and office applications.
2.2 Web Management Features
• Configuration
- System
- Ports
- VLANs
- Aggregation
- RSTP
- 802.1X
- IGMP Snooping
- Mirroring
- Quality of Service
- Storm Control
• Monitoring
- Statistics Overview
- Detailed Statistics
- RSTP Status
- IGMP Status
- VeriPHY
- Ping

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Chapter 2: Overview
• Maintenance
- Warm Restart
- Factory Default
- Software Upload
- Configuration File Transfer
- Logout
2.3 What’s Included
Your package should contain the following items. If anything is missing or
damaged, contact Black Box Technical Support at 724-746-5500 or
[e-mail].
• (1) 8-Port Gigabit Web Smart Switch
• (1) power cord (LGB708A-US-R3 includes U.S. power cord;
LGB708A-R3 includes Japanese power cord)
• This user’s manual on CD-ROM
2.4 Hardware Description
Figures 2-1 and 2-2 show the front and back panels of the the switch. Table 2-1
describes its components.
2.4.1 Front Panel
The front panel of the Web Smart Switch consists of eight Gigabit RJ-45 ports
with two Gigabit SFP open slots. The LED indicators are also located on the front
panel.
1 2 4, 5 6 7 3 7
4, 5 6 3
Figure 2-1. Front panel.

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Chapter 2: Overview
2.4.2 Rear Panel
The three-prong power plug is on the rear panel of the switch, right side shown
(see Figure 2-2).
8 9
Figure 2-2. Back panel.
Table 2-1. The switch’s components.
Number Component Status Description
1Reset button —Press to reset the unit.
2Power LED
On Power is on.
Off Power is off.
37 FX/8 FX Link LEDs
On SFP module is connected.
Off SFP module is disconnected.
41000M Ports 1–8 LEDs On Gigabit link is connected.
5Link/Act Ports 1–8 LEDs
On 10/100/1000 Link is connected
Flashing Passing data
6(8) RJ-45 ports —Links to devices or segments.
7(2) SFP open slots —Holds SFP modules.
8On/off switch —Turns the unit on or off.
9Three-prong plug —Links to 100–240 VAC, 50-60 Hz, 1 A outlet

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Chapter 3: Hardware Installation
3. Hardware Installation
Set the switch on a large flat space with a power socket nearby. The flat space
should be clean, smooth, level, and sturdy. Make sure there is enough clearance
around the switch to attach cables and power cord, and enable air circulation. Use
twisted pair cable to connect this switch to your PC to enable you to configure
the switch for your application.

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Chapter 4: Software Description
4. Software Description
This chapter describes how to set up and manage the switch through the Web
user interface.
1. First, open the Web browser, and go to the 192.168.2.1 site. You will see the
login screen.
2. Type in the password, then click “Apply.” The login process completes and the
“Password successfully entered” message appears.
Login Password: admin
Figure 4-1. Password successfully entered screen.
After you login, the right side of the Web site displays all functions shown in
Figure 4-2.

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Chapter 4: Software Description
Figure 4-2. Web functions.
4.1 Configuration
4.1.1 System Configuration
This page shows system configuration information. You can configure the
information shown in Figure 4-3.

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Chapter 4: Software Description
Figure 4-3. System configuration screen.

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Chapter 4: Software Description
• MAC Address: Displays the unique hardware address assigned by the
manufacturer (default).
• S/W Version: Displays the switch’s firmware version.
• H/W Version: Displays the switch’s hardware version.
• DHCP Enabled: Click the box to enable DHCP.
• Fallback IP address: Manually assign the IP address that the network is using.
The default IP is 192.168.2.1.
• Fallback Subnet Mask: Assign the subnet mask to the IP address.
• Fallback Gateway: Assign the network gateway for the switch. The default
gateway is 0.0.0.0.
• Management VLAN: ID of a configured VLAN (1–4094) through which you can
manage the switch. By default, all ports on the switch are members of VLAN 1.
However, if the management VLAN is changed, the management station must
be attached to a port that belongs to this VLAN.
• Name: Type in the new user name (the default value is “admin”).
• Password: Type in the new password (the default value is “admin”).
• SNMP Enabled: Enables or disables SNMP on the switch. Supports SNMP version
1a nd 2c management clients.
• SNMP Trap Destination: IP address of the trap manager to receive notification
messages from this switch. Traps indicating status changes are issued by the
switch to specified trap managers. You must specify trap managers so that key
events are reported by this switch to your management station.
• SNMP Read Community: A community string that acts like a password and
permits access to the SNMP database on this switch. Authorized management
stations are only able to retrieve MIB objects.
• SNMP Trap Community: Community string sent with the notification operation.
4.1.2 Ports
Port Security ensures access to a switch port based on MAC address. This limits
the total number of devices that use a switch port and protects against MAC
flooding attacks.

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Chapter 4: Software Description
Port Configuration
In Port Configuration, you can set and view the operation mode for each port.
• Enable Jumbo Frames: This switch provides more efficient throughput for large
sequential data transfers by supporting jumbo frames on Gigabit Ethernet ports
up to 9.6 KB. Compared to standard Ethernet frames that run only up to 1.5 KB,
using jumbo frames significantly reduces the per-packet overhead required to
process protocol encapsulation fields.
• Power Saving Mode: Adjusts the power provided to ports based on the length
of the cable used to connect to other devices. Only sufficient power is used to
maintain connection requirements.
• Mode: Enables you to manually set the port speed such as Auto, 10-Mbps
half-duplex, 10-Mbps full-duplex, 100-Mbps half-duplex, 100-Mbps full-duplex,
1000-Mbps full-duplex, or disabled. Press the “Apply” button to complete the
configuration procedure.

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Chapter 4: Software Description
Figure 4-4. Port configuration screen.

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Chapter 4: Software Description
Figure 4-5. Select the port speed.
4.1.3 VL AN
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast
domain, which would allow you to isolate network traffic, so only the members of
the same VLAN will receive traffic from the members of the same VLAN. Basically,
creating a VLAN on a switch is logically equivalent to reconnecting a group of
network devices to another Layer 2 switch. However, all the network devices are
still plugged into the same switch physically.
Port Segmentation (VLAN) Configuration
• VLAN ID: ID of configured VLAN (1-4094, no leading zeroes).
• VLAN Configuration List: Lists all the current VLAN groups created for this
system. Up to 16 VLAN groups can be defined. VLAN 1 is the default untagged
VLAN.

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Chapter 4: Software Description
Figure 4-6. VLAN screen.
VLAN Setup
The switch supports up to 16 VLANs based on the 802.1Q standard. From the
VLAN Membership page, you can create and delete VLANs, and change the
VLAN port membership.
Figure 4-7. VLAN setup screen.