Ovislink AirLive Live-FSH16T+v2 User manual

User’s Manual
Live-FSH16T+ V.3
Aug. , 2005
Fast Ethernet Switch
16 × 10/100Mbps
NWay 10/100BASE-TX
Fast Ethernet Switch
with VLAN function
Live-FSH16T+v2

Trademarks
All rights reserved.
OvisLink and OvisLink Logo are registered trademarks of OvisLink Corp. Other product
names and company names are trademarks or registered trademarks of their respective
owners.
FCC Warning
This equipment has been tested and found to comply with the requirements for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These requirements are designed for
reasonable protection against harmful interference when the equipment operating in a
commercial environment. This equipment can generate and radiate electromagnetic energy
and, if not installed and used in accordance with this guide, may cause significant
interference with radio communication. Operation of this equipment in a residential area is
likely to cause interference to household appliances, in which case the user will be required
to amend at his or her own expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may cause radio
interference, in which case the user may be required to take adequate preventive measures.
Disclaimer
Contents in this manual are subject to changes without prior notice.
About this User’s Manual
This User’s Manual aims at helping users to know the key features of
Live-FSH16T+ Fast Ethernet Switch and to install it in a 10/100BASE-TX
Fast Ethernet Local Area Network (LAN).

Table of Contents
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Table of Contents
TABLE OF CONTENTS ........................................................................................I
1PRODUCT OVERVIEW ........................................................................1
Introduction....................................................................................................................... 1
16× 10/100Mbps ports Fast Ethernet Switch with Per-port VLAN function ................. 1
Port-based VLAN for Instant Connectivity and Workgroup Privacy............................. 1
Per-port VLAN Configuration via a selection switch..................................................... 1
Store-and-Forward Architecture against Packet Loss..................................................... 1
Active Flow Control ....................................................................................................... 2
Full Wire Speed .............................................................................................................. 2
System/Port Status Information at a Glance ................................................................... 2
What is VLAN? ................................................................................................................. 2
Defining VLAN .............................................................................................................. 2
Port-based VLAN ........................................................................................................... 2
Table Maintenance via Signaling.................................................................................... 3
Product Features............................................................................................................... 4
Basic Features ................................................................................................................. 4
Advanced Features.......................................................................................................... 4
2PREPARATION BEFORE INSTALLATION.........................................5
Unpack the Package.......................................................................................................... 5
The Front Panel.................................................................................................................6
The Rear Panel..................................................................................................................6

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Station Ports (Port #1 to #16).......................................................................................... 6
DC Power Jack................................................................................................................ 6
VLAN mode switch ........................................................................................................ 7
3INSTALLATION OF THE SWITCH.......................................................8
Quick Installation..............................................................................................................8
3 Steps to Quick Installation........................................................................................... 8
Desktop Installation .......................................................................................................... 8
Installation on Wall........................................................................................................... 9
Cabling Requirements ...................................................................................................... 9
Cable requirement for 100BASE-TX Port...................................................................... 9
Straight-through cabling ................................................................................................. 9
Connecting to Power....................................................................................................... 10
4EXPANDING YOUR NETWORK........................................................12
Connectivity Rules .......................................................................................................... 12
10 Mbps Connection (10BASE-T) ............................................................................... 12
Twisted-pair 100Mbps Connection (100BASE-TX) .................................................... 12
Connecting to another Switch/Hub ............................................................................... 13
Straight-through Cable Connection for Switch-to-Switch/hub Connection ................. 13
Transmission Modes ....................................................................................................... 14
Station Ports (10/100BASE-TX Transmission)............................................................ 14
LAN Micro segmentation through Switching Technology.......................................... 14
Benefits of VLAN ............................................................................................................ 14
Advantage of VLAN Switching over Routing.............................................................. 14
Virtual Workgroups ...................................................................................................... 15
Centralized Server Farms.............................................................................................. 15

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Higher Performance and Reduced Latency .................................................................. 15
Ease of Administration ................................................................................................. 15
Saving Costs.................................................................................................................. 15
Routing between VLANs.............................................................................................. 15
Security ......................................................................................................................... 16
Reduction of Routing for Broadcast Containment........................................................ 16
Infrastructural VLANs .................................................................................................. 16
5LED INDICATORS..............................................................................18
Comprehensive LEDs ..................................................................................................... 18
System LED .................................................................................................................. 18
Station Port LEDs ......................................................................................................... 18
Power LED ...................................................................................................................... 18
VLAN LEDs .................................................................................................................... 19
Station Port LEDs ........................................................................................................... 19
Link/Act LED ............................................................................................................... 19
FDX/Col LED............................................................................................................... 19
100M ............................................................................................................................. 19
6VLAN CONFIGURATIONS....................................................................20
VLAN Mode Switch........................................................................................................ 20
VLAN Modes................................................................................................................... 20
VLAN mode ................................................................................................................. 20
VLAN Example using 14-VLANs mode...................................................................... 21
APPENDIX A: PRODUCT SPECIFICATIONS .................................................22
APPENDIX B TROUBLESHOOTING...............................................................24

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Figures
Fig. 2-1 Package Content................................................................................................ 5
Fig. 2-2 Front Panel ........................................................................................................ 6
Fig. 2-3 Rear Panel ......................................................................................................... 7
Fig. 2-4 VLAN mode switch .......................................................................................... 7
Fig. 3-1 Desktop installation........................................................................................... 8
Fig. 3-2 Bottom View of the Switch (showing mounting holes).................................... 9
Fig. 3-3 10/100BASE-TX pin assignments for RJ-45 connector ................................. 10
Fig. 3-4 Pin assignments for straight-through cabling.................................................. 10
Fig 3-5 Connecting the Switch to power outlet ............................................................ 11
Fig. 4-2 Routing between VLANs through a layer-3 Switch/Router ......................... 16
Fig. 5-1 Front-panel LED indicators............................................................................ 18
Fig 6-1: VLAN Mode Switch ....................................................................................... 20
Figure 6-3 VLAN Mode Example................................................................................. 21

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Tables
Table 3-1 Cabling type for 10BASE-T/100BASE-TX................................................. 10
Table 5-1 Station Port LEDs......................................................................................... 19
Table 5-2: VLANs mode ............................................................................................... 21

1 Product Overview
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1Product Overview
Introduction
16× 10/100Mbps ports Fast Ethernet Switch with Per-port VLAN
function
Live-FSH16T+ Fast Ethernet Switch is an auto-sensing and auto-negotiating 10/100ABSE-TX
Fast Ethernet Switch with VLAN and Priority capability. Its sixteen 10/100Mbps station ports
provide 10/100Mbps connections to Ethernet/Fast Ethernet network.
Live-FSH16T+’s unique switching fabric provides full wire speed for all ports. With auto-sensing,
Live-FSH16T+ automatically detects the speed of the devices you plug into, and routes the
incoming data to its destination. Its auto-negotiating function allows existing devices running at
different speeds to communicate easily within the same network.
Live-FSH16T+ also supports VLAN and Priority functions as briefly described in the following
sections:
Port-based VLAN for Instant Connectivity and Workgroup
Privacy
VLAN ensures instant connectivity and workgroup privacy. Since each station port can be
configured to whichever VLAN group, it offers utmost flexibility for workgroup assignment as to
ensure workgroup privacy. For those ports that join a VLAN, it offers instant connectivity without
further configuration efforts from network administrator. Members of a same VLAN group will be
included within a same broadcast domain, and will feel exactly as they are on the same network
segment (though they might not belong to the same physical network segment).
Per-port VLAN Configuration via a selection switch
With a selection switch in the back panel, user can set the switch in operate in either 14 or
15-VLANs mode. In “14-VLANs mode”, every port is in its own VLAN group sharing Port 1 and
Port 2. In “15-VLANs mode”, every port is in its own VLAN group sharing Port 2.
Store-and-Forward Architecture against Packet Loss
When network is under heavy traffic, the shared memory buffer in the switching devices might yield
incorrect detections due to overfed memory buffer. This setback can happen either when data is
transmitted in IEEE802.3x Full Duplex or Back Pressure Flow Control mode. To solve this problem,
Live-FSH16T+ utilizes a fixed memory buffer allocation with Store-and-forward transmission to
ensure an effective buffer allocation for each port.
Store-and-forward transmission controls data flow from transmitting to receiving nodes with the
receiving buffer threshold adjusted to an optimal value, thus guaranteeing against all possible packet
losses.

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Active Flow Control
Live-FSH16T+ Fast Ethernet Switch implements in full duplex mode a flow control that is
compliant with the IEEE 802.3x standard. While in half duplex mode, it employs an optional Back
Pressure Flow Control to stall the incoming data when port buffers are saturated. With this flow
control mechanism, it can be ensured that frames dropped during transmission are reduced to a
minimum.
Full Wire Speed
Live-FSH16T+’s Full Wire Speed feature provides high-end performance for departmental and
workgroup environments at a fraction of the cost of similar devices. Typically, this feature was
found only in high-end switches designed to handle huge corporate networks. With bandwidth needs
and network efficiency concerns, Live-FSH16T+’s switching fabric design is the perfect answer for
bandwidth enhancement solution.
System/Port Status Information at a Glance
There are 2 sets of LEDs on the front panel: System LEDs and Station Port LEDs.
The System LEDs consist of the Power and VLAN LEDs. Power LED shows Power On/Off status
of the switch. The VLAN LED show the VLAN configuration status
The Station Port LEDs reveal the link status, half/full duplex transmission, 10/100Mbps speed
mode and the collision status of each station port.
For detailed LED information, refer to Chapter 5, LED Indicators.
What is VLAN?
Defining VLAN
What is VLAN? Since VLAN solutions and implementations are still very vendor-specific, to define
precisely what VLANs will certainly arouse controversy. Nevertheless, most would agree that a
VLAN can roughly be equated as a broadcast domain. More specifically, VLANs can be seen as a
group of end stations, perhaps on multiple physical LAN segments, which are not constrained by
their physical location and can communicate as if they were on a common LAN.
There are several ways to define VLAN membership: port grouping, frame tagging, MAC-layer
grouping, network-layer grouping, IP multicast grouping, etc. Live-FSH16T+ utilizes
port-grouping (port-based VLAN) for the implementation of VLAN in your network.
Port-based VLAN
Live-FSH16T+ simplified the VLAN setup by implementing the most common used VLAN
configuration with a selection switch. The VLAN mode of Live-FSH16T+ allows users to put each
port in separate VLAN groups while able to share common resources. In VLAN mode, each port
is in its own VLAN group with Port 8 and Port 16 as sharing ports. The sharing ports are ports that
are shared by all VLAN groups for common resources such as Internet connection, servers, or
connection to another switch.

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Table Maintenance via Signaling
When an end-station broadcasts its first frame, the switch resolves the end-station’s attached port
with its VLAN membership in cached address tables. As VLAN membership changes, these address
tables can be manually updated by a system administrator at a management console.

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Live-FSH16T+ Fast Ethernet Switch
Product Features
Basic Features
 Fast Ethernet Switch with sixteen 10/100Mbps station ports
 Fully compliant with Ethernet/Fast Ethernet standards:
- IEEE 802.3 (10 BASE-T Ethernet)
- IEEE 802.3u (100 BASE-TX Fast Ethernet)
- IEEE 802.1q VLAN
- ANSI/IEEE Std 802.3 NWay auto-negotiation
 Fixed-port configuration:
- 16 × 10/100 Mbps auto-sensing and auto-negotiating ports (Port #1 ~ 16)
 Easy plug-and-play installation
 VLAN Selection button to enable/disable VLAN configuration
 Store and Forward transmission to prevent packet loss
 Half/Full Duplex function for all 10/100BASE-TX stations ports
 Auto-sensing and auto-MDI/MDIX function for all 10/100BASE-TX station ports
 Active Flow control to minimize frame drops
- Half Duplex: Back Pressure control
- Full Duplex: IEEE 802.3x compliant flow control
 Comprehensive LED indicators for system/port status monitoring:
System LEDs
- Power (green) LED to indicate power on/off status
- VLAN (yellow) LEDs to indicate the status of VLAN configuration
Station Port LEDs (for port 1 ~ port16)
- Link/Act (green) LEDsto indicate linking status and activity in 10/100Mpbs mode
- FDX/Col (yellow) LEDs to indicate Half/Full Duplex transmission and collision status
- 100M (red) LEDs to indicate 100 Mbps speed
 Cabling distance up to 100 meters for twisted-pair cable
Advanced Features
VLAN
 Port-based VLAN support:
 Port 8 and Port 16 are the overlapping ports via VLAN mode switch on the back panel.

2 Preparation before Installation
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2Preparation before Installation
Unpack the Package
Before you begin the installation of Live-FSH16T+ Fast Ethernet Switch, make sure that you have
all the necessary accessories that come with your package. Follow the steps below to unpack your
package contents:
1. Clear out an adequate space to unpack the package carton.
2. Open the package carton and take out the contents carefully.
3. Put back all the shipping materials such as plastic bag, paddings and linings into the package
carton and save them for future transport need.
After unpacking and taking out the entire package contents, you should check whether you have got
the following items:
⌧ Live-FSH16T+ Fast Ethernet Switch
⌧ One AC power adapter
⌧ Rubber pads and stacking clip
⌧ Support CD-ROM (The PDF version of this User’s Manual can be found within)
If any of these above items is missing or damaged, please contact your local dealer for replacement.
Fig. 2-1 Package Content

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The Front Panel
The front panel is where you can find the LED indicators. For information concerning LED
indicators, please refer to Chapter 5, LED Indicators.
Fig. 2-2 Front Panel
The Rear Panel
The rear panel is where you can locate the DC power jack, the 16 10/100Mbps station ports. For the
technical specifications of the ports, please refer to Appendix A, Product Specifications for detailed
information.
Station Ports (Port #1 to #16)
Live-FSH16T+ Fast Ethernet Switch is equipped with 16 10/100Mbps auto-sensing and
auto-negotiating ports. You can use these ports to connect to end stations, servers or other
networking devices.
DC Power Jack
The DC Power Jack is where you should connect the DC power adapter chord.
Power LED
Station Por
t
LEDs
Station Ports
Power Connector
VLAN Mode Switch
VLAN LDS

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Fig. 2-3 Rear Panel
VLAN mode switch
THE VLAN mode switch is where you can select the VLAN mode for the switch
 VLAN: The switch is operating in VLAN mode. Each port is in its own VLAN group sharing
Port 8 and Port 16
 OFF: The switch’s VLAN function is off.
Fig. 2-4 VLAN mode switch

3 Installation of the Switch
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3Installation of the Switch
Quick Installation
Live-FSH16T+ Fast Ethernet Switch is fully compliant with 10/100BASE-TX Fast Ethernet
standards.
Live-FSH16T+ also features VLAN function. The VLAN function is primarily designed as an ideal
solution to enhance your workgroup/corporate network performance with instant connectivity and
workgroup security. With a selection switch in the back panel, user can set the switch to turn the
VLAN function On or OFF. In VLAN mode, every port is in its own VLAN group sharing Port 8
and Port 16.
3 Steps to Quick Installation
Step 1. Power on the Switch.
Step 2. Connect network devices to the Switch: connect either workstation, server, switch, bridge
or router to the station port (10/100BASE-TX), using 100 ohm unshielded twisted pair (category 5
UTP) or shielded twisted-pair (STP) cable.
Step 3. Select the VLAN mode: Use the VLAN-mode switch in the back panel to choose whether
to turn VLAN On or OFF. The default VLAN setting is OFF. For the configuration details, please
refer to Chapter 6 specifically.
Desktop Installation
Live-FSH16T+ Fast Ethernet Switch has four rubber pads attached on each corner of its underside.
These pads serve as cushionings against vibration and prevent the switch from sliding off its
position. They also allow adequate ventilation space when you place the switch on top of another
device.
Fig. 3-1 Desktop installation

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Installation on Wall
Live-FSH16T+ Fast Ethernet Switch can be mounted on a wall with wall anchors and screws.
To mount the Switch on wall, please follow the steps below:
 Drill two holes, the distance between both of which should be 9 cm (such as the illustration
below).
 Insert wall anchors into these two holes.
 Drive the screws into the top of the wall anchors.
 Mount Live-FSH16T+ on the screws.
Fig. 3-2 Bottom View of the Switch (showing mounting holes)
Cabling Requirements
Live-FSH16T+ Fast Ethernet Switch is primarily designed as a central switching device to provide
10/100Mbps bandwidth to your Ethernet/Fast Ethernet LAN.
Cable requirement for 100BASE-TX Port
Those 16 RJ-45 station ports (MDI-X) all require Cat. 5 twisted-pair UTP/STP cable for connection.
When configuring within the 10/100BASE-TX cabling architecture, the cable distance should be
within 100m.
The following table summarizes the cable requirement for 10/100BASE-TX connection:
10BASE-T 100 ohm Category 3, 4, 5 UTP/STP cable
100BASE-TX 100 ohm Category 5 UTP/STP cable
Straight-through cabling
Under most conditions, the 16 station ports on the Switch accept normal, straight-through cables, i.e.,
standard UTP/STP cables, which are the only ones that can be used with a RJ-45 connector
interface.
9 cm

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Normally, 10BASE-T networks require a straight-through Cat. 3, 4, 5 UTP/STP cabling system.
The cabling system could be found in most existing Ethernet network installations.
100/100BASE-TX networks require Cat. 5 UTP/STP cabling system. The pin assignments for a
straight-through cable are shown in Figure 3-5 and 3-6.
Fig. 3-3 10/100BASE-TX pin assignments for RJ-45 connector
Fig. 3-4 Pin assignments for straight-through cabling
Note:
While connectingLive-FSH16T+ to other hub/switch, you don’t have to use a crossover cable for
connection, since Live-FSH16T+ performs auto-crossing over by its Auto-MDI, Auto-MDI-X
function. Simply use the straight-through cable for all types of 100BASE-TX connections, either
to a PC or to a networking device such as other hub or switch.
The table below describes when to use straight-through or crossover cable:
Connection
Specification
Station Port
10BASE-T/100BASE-T
Interface RJ-45
Cable to Use
To an end station Straight-through
twisted-pair cable
To a hub/switch Straight-through
twisted-pair cable
Maximum Distance 100 meters
Table 3-1 Cabling type for 10BASE-T/100BASE-TX
Connecting to Power
Live-FSH16T+ is accompanied with an external power adapter unit, which is specifically designed

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for the line voltage and the type of AC outlet used in your location. This power adapter provides the
voltage, amperage, and polarity required by the Switch (7.5VDC@1.5A, inside positive, outside
negative) and is outfitted with the correct type of barrel connector for the DC power jack on the rear
panel.
After verifying that the DC power adapter cord is suitable for use, just plug the male end of the DC
power adapter into a power outlet on the wall; and plug the barrel connector of the power adapter
into DC power jack on the Switch. Once you have correctly plugged in the power, the Switch is
activated.
Fig 3-5 Connecting the Switch to power outlet
Power Outlet
Power Connector

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4Expanding Your Network
Live-FSH16T+ Fast Ethernet Switch is primarily designed as a central switching device to manage
your workgroup/departmental traffic within Ethernet/Fast Ethernet.
Its built-in VLAN function offers instant connection without further administration efforts.
Furthermore, its secure VLAN feature offers security for virtual workgroups. With your existing
Ethernet/Fast Ethernet infrastructure, you can very easily connect, expand or migrate to virtual
workgroup computing in an Ethernet/Fast Ethernet environment.
The following sections will introduce to you the basics of network connectivity in virtual workgroup
computing within Ethernet/Fast Ethernet environment as well as VLAN and priority configuration.
Connectivity Rules
10 Mbps Connection (10BASE-T)
Ethernet connection should be configured according to the following connectivity rules:
• The maximum length for UTP cables must not exceed 100 meters from end station to a
shared-access 10BASE-T hub.
• Between any two end stations in a collision domain, there may be up to five cable segments and
four intermediate repeaters at most.
• If there is a path between any two end-stations containing five segments and four repeaters, then
at least two of the cable segments must be point-to-point link segments (e.g. 10BASE-T or
10BASE-5), while the remaining segments may be of mixed segments (e.g.: 10BASE-2 or
10BASE-5).
Twisted-pair 100Mbps Connection (100BASE-TX)
Copper-wired Fast Ethernet connection should be configured according to the following
connectivity rules:
• The maximum length for STP/UTP cable is 100 meters from end station and a shared-access
100BASE-TX hub.
• The maximum cable length is 100 meters between end station and switch/repeater; and 100
meters between switch and switch/repeater, thus making possible a maximum distance of 300
meters between two end stations.