Versitron SG72460M User manual

SG72460M
Web Smart 10/100/1000
24-Port Ethernet Switch
with SFP support
User’s Manual
© September 2007
VERSITRON, Inc.
83 Albe Drive / Suite C
Newark, DE 19702
www.versitron.com

PROPRIETARY DATA
All data in this manual is proprietary and may not be disclosed,
used or duplicated, for procurement or manufacturing purposes,
without prior written permission by VERSITRON.
WARRANTY
All VERSITRON products are covered by a Lifetime Warranty against defects in materials
and workmanship. This coverage is applicable to the original purchaser and is not transferable.
We repair, or at our option, replace parts/products that, during normal usage and operation, are proven
to be defective during the time you own the products, provided that said products and parts are still
manufactured and/or available.
This warranty does not cover damage to products caused by misuse, mishandling, power surges,
accident, improper installation, neglect, alteration, improper maintenance, or other causes which are
not normal and customary application of the products and for which they were not intended. No other
warranty is expressed or implied, and VERSITRON is not liable for direct, indirect, incidental or
consequential damages or losses.
In the unlikely event a warranty issue should arise, simply contact us at 302-894-0699 or 1-800-537-
2296 or via email to [email protected] and obtain a Return Material Authorization (RMA)
number. Reference this number on the outside of the shipping container and return the unit (shipping
charges prepaid) to us for diagnostic review and repair/replacement as determined solely by
VERSITRON. We pay the shipping charges to return the repaired unit or a replacement unit to you.
Note: This warranty is effective for commercial products as of January 1, 2001.

The information contained in this document is subject to change without prior notice.
Copyright ©. All Rights Reserved.
TRADEMARKS
Ethernet is a registered trademark of Xerox Corp.
WARNING:
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and if not installed and used in accordance with the instruction manual may cause harmful
interference in which case the user will be required to correct the interference at his/her own expense.
NOTICE:
(1) The changes or modifications not expressively approved by the party responsible for compliance could void the
user's authority to operate the equipment.
(2) Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission
limits.
CISPR A COMPLIANCE:
This device complies with EMC directive of the European Community and meets or exceeds the following technical
standard.
EN 55022 - Limits and Methods of Measurement of Radio Interference Characteristics of Information
Technology Equipment. This device complies with CISPR Class A.
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 measures.
CE NOTICE
Marking by the symbol indicates compliance of this equipment to the EMC directive of the European
Community. Such marking is indicative that this equipment meets or exceeds the following technical standards:
EN 55022: Limits and Methods of Measurement of Radio Interference characteristics of Information
Technology Equipment.
EN 50082/1:Generic Immunity Standard -Part 1: Domestic Commercial and Light Industry.
EN 60555-2: Disturbances in supply systems caused by household appliances and similar electrical equipment -
Part 2: Harmonics.

ii
Table of Contents
Caution ................................................................................................................................. iv
Electronic Emission Notices ................................................................................................. iv
1. Introduction .......................................................................................................................2
1-1. Overview of 24-Port GbE Web Smart Switch ................................................................2
1-2. Checklist.........................................................................................................................3
1-3. Features .........................................................................................................................3
1-4. View of 24-Port GbE Web Smart Switch........................................................................5
1-4-1. User Interfaces on the Front Panel (Button, LEDs and Plugs)...............................5
1-4-2. User Interfaces on the Rear Panel .........................................................................6
1-5. View of the Optional Modules ........................................................................................7
2. Installation .........................................................................................................................8
2-1. Starting 24-Port GbE Web Smart Switch Up..................................................................8
2-1-1. Hardware and Cable Installation ............................................................................8
2-1-2. Cabling Requirements ............................................................................................9
2-1-3. Configuring the Management Agent of 24-Port GbE Web Smart Switch.............14
2-1-4. IP Address Assignment.........................................................................................16
2-2. Typical Applications......................................................................................................21
3. Basic Concept and Management....................................................................................23
3-1. What’s the Ethernet......................................................................................................23
3-2. Media Access Control (MAC).......................................................................................26
3-3. Flow Control .................................................................................................................32
3-4. How does a switch work?.............................................................................................35
3-5. Virtual LAN ...................................................................................................................39
3-6. Link Aggregation ..........................................................................................................45
4. Operation of Web-based Management .............................................................................47
4-1. Web Management Home Overview .............................................................................48
4-2. Configuration................................................................................................................50
4-2-1. System Configuration ...........................................................................................51
4-2-2. Ports Configuration...............................................................................................54
4-2-3. VLAN Mode Configuration....................................................................................55
4-2-4. VLAN Group Configuration...................................................................................56
4-2-5. Aggregation...........................................................................................................59
4-2-6. LACP ....................................................................................................................60
4-2-7. RSTP ....................................................................................................................61
4-2-8. 802.1X ..................................................................................................................63
4-2-9 IGMP Snooping .....................................................................................................69
4-2-10. Mirror Configuration............................................................................................70
4-2-11. QoS(Quality of Service) Configuration ...............................................................71
4-2-12 Filter.....................................................................................................................74
4-2-13 Rate Limit.............................................................................................................75
4-2-14 Storm Control.......................................................................................................76
4-2-15 SNMP ..................................................................................................................77
4-3. Monitoring ....................................................................................................................79
4-3-1. Statistics Overview ...............................................................................................79
4-3-2. Detailed Statistics .................................................................................................81
4-3-3. LACP Status .........................................................................................................84
4-3-4. RSTP Status .........................................................................................................85
4-3-5. IGMP Status..........................................................................................................86
4-3-6. Ping Status............................................................................................................87
4-4. Maintenance.................................................................................................................89
4-4-1. Warm Restart........................................................................................................90
4-4-2. Factory Default .....................................................................................................91
4-4-3. Software Upgrade.................................................................................................92
4-4-4. Configuration File Transfer ...................................................................................93
4-4-5. Logout...................................................................................................................94

iii
5. Maintenace .........................................................................................................................95
5-1. Resolving No Link Condition ........................................................................................95
5-2. Q&A..............................................................................................................................95
Appendix A Technical Specifications.......................................................................................96
Appendix B MIB Specifications..............................................................................................100

iv
Caution
Circuit devices are sensitive to static electricity, which can damage their delicate electronics. Dry weather
conditions or walking across a carpeted floor may cause you to acquire a static electrical charge.
To protect your device, always:
•Touch the metal chassis of your computer to ground the static electrical charge before you pick up the circuit
device.
•Pick up the device by holding it on the left and right edges only.
Electronic Emission Notices
Federal Communications Commission (FCC) Statement
This equipment has been tested and found to comply with the limits for a class A computing device pursuant
to Subpart J of part 15 of FCC Rules, which are designed to provide reasonable protection against such
interference when operated in a commercial environment.
European Community (CE) Electromagnetic Compatibility Directive
This equipment has been tested and found to comply with the protection requirements of European
Emission Standard EN55022/EN60555-2 and the Generic European Immunity Standard EN50082-1.
EMC:
EN55022(1988)/CISPR-22(1985) class A
EN60555-2(1995) class A
EN60555-3
IEC1000-4-2(1995) 4K V CD, 8KV, AD
IEC1000-4-3(1995) 3V/m
IEC1000-4-4(1995) 1KV – (power line), 0.5KV – (signal line)

About this user’s manual
This user’s manual provides instructions on how to install your Web Smart Switch.
This guide also covers management options and detailed explanation about hardware and software
functions.
Overview of this user’s manual
Chapter 1 “Introduction” describes the features of 24-Port Gigabit Web Smart Switch
Chapter 2 “Installation”
Chapter 3 “Operating Concept and Management”
Chapter 4 “Operation of Web-based Management”
Chapter 5 “Maintenance”

2
1. Introduction
1-1. Overview of 24-Port GbE Web Smart Switch
The 24-port Gigabit Web Smart Switch is a standard switch that meets all IEEE 802.3/u/x/z Gigabit, Fast
Ethernet specifications. The switch has 24 10/100/1000Mbps TP ports and 4 Gigabit TP/SFP transceiver
slots. It supports console, telnet, http and SNMP interface for switch management. The network
administrator can logon the switch to monitor, configure and control each port’s activity. In addition, the
switch implements the QoS (Quality of Service), VLAN, and Trunking. It is suitable for office application.
In this switch, Port 21, 22, 23, 24 includes two types of media --- TP and SFP Fiber (LC, BiDi…);
this port supports 10/100/1000Mbps TP or 1000Mbps SFP Fiber with auto-detected function. 1000Mbps
SFP Fiber transceiver is used for high-speed connection expansion.
⎯1000Mbps LC, Multi-Mode, SFP Fiber transceiver
⎯1000Mbps LC, 10km, SFP Fiber transceiver
⎯1000Mbps LC, 30km, SFP Fiber transceiver
⎯1000Mbps LC, 50km, SFP Fiber transceiver
⎯1000Mbps BiDi, 20km, 1550nm SFP Fiber WDM transceiver
1000Mbps BiDi, 20km, 1310nm SFP Fiber WDM transceiver
10/100/1000Mbps TP is a standard Ethernet port that meets all IEEE 802.3/u/x/z Gigabit, Fast
Ethernet specifications. 1000Mbps SFP Fiber transceiver is a Gigabit Ethernet port that fully complies
with all IEEE 802.3z and 1000Base-SX/LX standards.
1000Mbps Single Fiber WDM (BiDi) transceiver is designed with an optic Wavelength Division
Multiplexing (WDM) technology that transports bi-directional full duplex signal over a single fiber
simultaneously.
• Key Features in the Device
QoS:
The switch offers powerful QoS function. This function supports 802.1p VLAN tag priority and
DSCP on Layer 3 of network framework.
VLAN:
Supports Port-based VLAN, IEEE802.1Q Tag VLAN. And 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.

3
1-2. Checklist
Before you start installing the switch, verify that the package contains the following:
⎯A 24-Port GbE Web Smart Switch
⎯Modules (optional)
⎯Mounting Accessory (for 19” Rack Shelf)
⎯This User's Manual in CD-ROM
⎯AC Power Cord
Please notify your sales representative immediately if any of the aforementioned items is missing or
damaged.
1-3. Features
The 24-Port GbE Web Smart Switch, a standalone off-the-shelf switch, provides the
comprehensive features listed below for users to perform system network administration and efficiently
and securely serve your network.
• Hardware
• 24 10/100/1000Mbps Auto-negotiation Gigabit Ethernet TP ports
• 4 10/100/1000Mbps TP or 1000Mbps SFP Fiber dual media auto sense
• 400KB on-chip frame buffer
• Jumbo frame support
• Programmable classifier for QoS (Layer 2/Layer 3)
• 8K MAC address and support VLAN ID (1~4094)
• Per-port shaping, policing, and Broadcast Storm Control
• IEEE802.1Q-in-Q nested VLAN support
• Full-duplex flow control (IEEE802.3x) and half-duplex backpressure
• Extensive front-panel diagnostic LEDs; System: Power, TP Port1-24: LINK/ACT,
10/100/1000Mbps, SFP Port 21, 22, 23,24: SFP(LINK/ACT)
• Management
•Supports concisely the status of port and easily port configuration
•Supports per port traffic monitoring counters
• Supports a snapshot of the system Information when you login
• Supports port mirror function
• Supports the static trunk function

4
• Supports 802.1Q VLAN
• Supports user management and limits one user to login
• Maximal packet length can be up to 9600 bytes for jumbo frame application
• Supports Broadcasting Suppression to avoid network suspended or crashed
• Supports to send the trap event while monitored events happened
•Supports default configuration which can be restored to overwrite the current
configuration which is working on via Web UI and Reset button of the switch
• Supports on-line plug/unplug SFP modules
• Supports Quality of Service (QoS) for real time applications based on the
information taken from Layer 2 to Layer 3.
• Built-in web-based management instead of using CLI interface, providing a more
convenient GUI for the user

5
1-4. View of 24-Port GbE Web Smart Switch
1-4-1. User Interfaces on the Front Panel (Button, LEDs and Plugs)
There are 24 TP Gigabit Ethernet ports and 4 SFP fiber ports for optional removable modules on
the front panel of the switch. LED display area, locating on the left side of the panel, contains a Power
LED, which indicates the power status and 24 ports working status of the switch.
Fig. 1-1 Full View of 24-PORT GBE WEB SMART SWITCH
Fig. 1-2 Front View of 24-PORT GBE WEB SMART
Power Indication LED
Gi
g
abit Ethernet Port
TP Port Status Indication LEDs
RESET Button:
RESET button is used to
restore the system default
setting.
SFP Fiber Por
t
s
Fiber Port Status Indication LEDs

6
• LED Indicators
LED Color Function
System LED
POWER Green Lit when +3.3V power is coming up
10/100/1000Ethernet TP Port 1 to 24 LED
LINK/ACT Green Lit when connection with remote device is good
Blinks when any traffic is present
10/100/1000Mbps
Green/
Amber
Lit Green when TP link on 1000Mbps speed
Lit Amber when TP link on 100Mbps speed
Off when 10Mbps or no link occur
Blinks when any traffic is present
1000SX/LX Gigabit Fiber Port 21, 22, 23, 24 LED
SFP(LINK/ACT) Green
Lit when SFP connection with remote device is
good
Blinks when any traffic is present
Table1-1
1-4-2. User Interfaces on the Rear Panel
Fig. 1-3 Rear View of 24-PORT GBE WEB SMART SWITCH
AC Line 100-240V 50/60 Hz

7
1-5. View of the Optional Modules
In the switch, Port 21~24 include two types of media --- TP and SFP Fiber (LC, BiDi…); they
support 10/100/1000Mbps TP or 1000Mbps SFP Fiber with auto-detected function. 1000Mbps SFP Fiber
transceiver is used for high-speed connection expansion; nine optional SFP types provided for the switch
are listed below:
⎯1000Mbps LC, MM, SFP Fiber transceiver
⎯1000Mbps LC, SM 10km, SFP Fiber transceiver
⎯1000Mbps LC, SM 30km, SFP Fiber transceiver
⎯1000Mbps LC, SM 50km, SFP Fiber transceiver
⎯1000Mbps LC, SM 70km, SFP Fiber transceiver
⎯1000Mbps LC, SM 110km, SFP Fiber transceiver
⎯1000Mbps BiDi, type 1, SM 20km, SFP Fiber WDM transceiver
⎯1000Mbps BiDi, type 2, SM 20km, SFP Fiber WDM transceiver
⎯1000Mbps LC, SM 10km, SFP Fiber transceiver with DDM
Fig. 1-4 Front View of 1000Base-SX/LX LC, SFP Fiber Transceiver
Fig. 1-5 Front View of 1000Base-LX BiDi SC SFP Fiber Transceiver

8
2. Installation
2-1. Starting 24-Port GbE Web Smart Switch Up
This section describes how to install the Web Smart Switch and its components, and also includes the
following information:
- Hardware and Cable Installation
- Management Station Installation
- Software booting and configuration
2-1-1. Hardware and Cable Installation
At the beginning, please do first:
⇒Wear a grounding device to avoid the damage from electrostatic discharge
⇒Be sure that power switch is OFF before you insert the power cord to power source
•Installing Optional SFP Fiber Transceivers to the 24-Port GbE Web Smart Switch
Note: If you have no modules, please skip this section.
•Connecting the SFP Module to the Chassis:
The optional SFP modules are hot swappable, so you can plug or unplug it before or after powering
on.
1. Verify that the SFP module is the right model and conforms to the chassis
2. Slide the module along the slot. Also be sure that the module is properly seated against the slot
socket/connector
3. Install the media cable for network connection
4. Repeat the above steps, as needed, for each module to be installed into
slot(s)
5. Have the power ON after the above procedures are done
Fi
g
. 2-1 Installation of O
p
tional SFP Fiber Transceive
r

9
• TP Port and Cable Installation
⇒In the switch, TP port supports MDI/MDI-X auto-crossover, so both types of cable, straight-through
(Cable pin-outs for RJ-45 jack 1, 2, 3, 6 to 1, 2, 3, 6 in 10/100M TP; 1, 2, 3, 4, 5, 6, 7, 8 to 1, 2, 3, 4, 5,
6, 7, 8 in Gigabit TP) and crossed-over (Cable pin-outs for RJ-45 jack 1, 2, 3, 6 to 3, 6, 1, 2) can be
used. It means you do not have to tell from them, just plug it.
⇒Use Cat. 5 grade RJ-45 TP cable to connect to a TP port of the switch and the other end is connected
to a network-aware device such as a workstation or a server.
⇒Repeat the above steps, as needed, for each RJ-45 port to be connected to a Gigabit 10/100/1000 TP
device.
Now, you can start having the switch in operation.
• Power On
The switch supports 100-240 VAC, 50-60 Hz power supply. The power supply will automatically
convert the local AC power source to DC power. It does not matter whether any connection plugged into
the switch or not when power on, even modules as well. After the power is on, all LED indicators will light
up and then all off except the power LED still keeps on. This represents a reset of the system.
• Firmware Loading
After resetting, the bootloader will load the firmware into the memory. It will take about 30 seconds,
after that, the switch will flash all the LED once and automatically performs self-test and is in ready state.
2-1-2. Cabling Requirements
To help ensure a successful installation and keep the network performance good, please take a
care on the cabling requirement. Cables with worse specification will render the LAN to work poorly.

10
2-1-2-1. Cabling Requirements for TP Ports
⇒For Fast Ethernet TP network connection
⎯The grade of the cable must be Cat5 or Cat5e with a maximum length of 100 meters.
⇒Gigabit Ethernet TP network connection
⎯The grade of the cable must be Cat5 or Cat5e with a maximum length of 100 meters. Cat5e is
recommended.
2-1-2-2. Cabling Requirements for 1000SX/LX SFP Module
It is more complex and comprehensive contrast to TP cabling in the fiber media. Basically, there
are two categories of fiber, multi mode (MM) and single mode (SM). The later is categorized into several
classes by the distance it supports. They are SX, LX, LHX, XD, and ZX. From the viewpoint of connector
type, there mainly are LC and BIDI.
⎯Gigabit Fiber with multi-mode LC SFP module
⎯Gigabit Fiber with single-mode LC SFP module
⎯Gigabit Fiber with BiDi 1310nm SFP module
⎯Gigabit Fiber with BiDi 1550nm SFP module
The following table lists the types of fiber that we support and those else not listed here are
available upon request.
Multi-mode Fiber Cable and Modal Bandwidth
Multi-mode 62.5/125μm Multi-mode 50/125μm
Modal
Bandwidth Distance Modal Bandwidth Distance
160MHz-Km 220m 400MHz-Km 500m
IEEE 802.3z
Gigabit Ethernet
1000SX 850nm
200MHz-Km 275m 500MHz-Km 550m
Single-mode Fiber 9/125μm
Single-mode transceiver 1310nm 10Km
1000Base-
LX/LHX/XD/ZX
Single-mode transceiver 1550nm 30, 50Km
TX(Transmit) 1310nm
Single-Mode
*20Km RX(Receive) 1550nm
TX(Transmit) 1550nm
1000Base-LX
Single Fiber
(BIDI) Single-Mode
*20Km RX(Receive) 1310nm
Table2-1

11
2-1-2-3. Switch Cascading in Topology
• Takes the Delay Time into Account
Theoretically, the switch partitions the collision domain for each port in switch cascading that you
may up-link the switches unlimitedly. In practice, the network extension (cascading levels & overall
diameter) must follow the constraint of the IEEE 802.3/802.3u/802.3z and other 802.1 series protocol
specifications, in which the limitations are the timing requirement from physical signals defined by 802.3
series specification of Media Access Control (MAC) and PHY, and timer from some OSI layer 2 protocols
such as 802.1d, 802.1q, LACP and so on.
The fiber, TP cables and devices’ bit-time delay (round trip) are as follows:
1000Base-X TP, Fiber 100Base-TX TP 100Base-FX Fiber
Round trip Delay: 4096 Round trip Delay: 512
Cat. 5 TP Wire: 11.12/m Cat. 5 TP Wire: 1.12/m Fiber Cable: 1.0/m
Fiber Cable : 10.10/m TP to fiber Converter: 56
Bit Time unit : 1ns (1sec./1000 Mega bit) Bit Time unit: 0.01μs (1sec./100 Mega bit)
Table 2-2
Sum up all elements’ bit-time delay and the overall bit-time delay of wires/devices must be within
Round Trip Delay (bit times) in a half-duplex network segment (collision domain). For full-duplex operation,
this will not be applied. You may use the TP-Fiber module to extend the TP node distance over fiber optic
and provide the long haul connection.
• Typical Network Topology in Deployment
A hierarchical network with minimum levels of switch may reduce the timing delay between server
and client station. Basically, with this approach, it will minimize the number of switches in any one path;
will lower the possibility of network loop and will improve network efficiency. If more than two switches are
connected in the same network, select one switch as Level 1 switch and connect all other switches to it at
Level 2. Server/Host is recommended to connect to the Level 1 switch. This is general if no VLAN or other
special requirements are applied.

12
Case1: All switch ports are in the same local area network. Every port can access each other
(See Fig. 2-2).
If VLAN is enabled and configured, each node in the network that can communicate each other
directly is bounded in the same VLAN area.
Here VLAN area is defined by what VLAN you are using. The switch supports both port-based
VLAN and tag-based VLAN. They are different in practical deployment, especially in physical location.
The following diagram shows how it works and what the difference they are.
Case2a: Port-based VLAN (See Fig.2-3).
1. The same VLAN members could not be in different switches.
2. Every VLAN members could not access VLAN members each other.
3. The switch manager has to assign different names for each VLAN groups
at one switch.
Fi
g
. 2-2 No VLAN Confi
g
uration Dia
g
ram
Fig. 2-3 Port-based VLAN Diagram

13
Case 2b: Port-based VLAN (See Fig.2-4).
1. VLAN1 members could not access VLAN2, VLAN3 and VLAN4 members.
2. VLAN2 members could not access VLAN1 and VLAN3 members, but they could access VLAN4
members.
3. VLAN3 members could not access VLAN1, VLAN2 and VLAN4.
4. VLAN4 members could not access VLAN1 and VLAN3 members, but they could access VLAN2
members.
Case3a: The same VLAN members can be at different switches with the same VID (See Fig. 2-5).
Fig. 2-4 Port-based VLAN Diagram
Fig. 2-5 Attribute-based VLAN Diagram

14
2-1-3. Configuring the Management Agent of 24-Port GbE Web Smart Switch
In the way of web, user is allowed to startup the switch management function. Users can use any
one of them to monitor and configure the switch. You can touch them through the following procedures.
Section 2-1-3-1: Configuring Management Agent of 24-Port GbE Web Smart Switch through Ethernet Port