Transition Networks SM24TAT4GPA User manual

33600 Rev. B www.transition.com Page 1of 105
SM24TAT4GPA
24-Port 10/100/1000Base-T
Managed POE plus Switch
User Manual

Publication date: Mar, 2016
33600 Rev B
i
Table of Contents
CAUTION ........................................................................................................................... III
ELECTRONIC EMISSION NOTICES....................................................................................... III
WARNING: ......................................................................................................................... III
1. INTRODUCTION....................................................................................................... 2
1-1. OVERVIEW................................................................................................................... 2
1-2. CHECKLIST .................................................................................................................. 2
1-3. FEATURES.................................................................................................................... 3
1-4. VIEW OF SM24TAT4GPA .................................................................................... 4
1-4-1. Front Panel (Button, LEDs and Plugs) .............................................................. 4
1-4-2. the Rear Panel.................................................................................................... 5
2. INSTALLATION......................................................................................................... 7
2-1. SETUP SM24TAT4GPA............................................................................................... 7
2-1-1. Hardware and Cable Installation....................................................................... 7
2-1-2. Cabling Requirements ........................................................................................ 9
2-1-3. Configuring the Management Agent of SM24TAT4GPA....................................12
2-1-4. IP Address Assignment ......................................................................................13
2-2.TYPICALAPPLICATIONS..............................................................................................17
3. BASIC CONCEPTAND MANAGEMENT.............................................................19
3-1. WHAT IS THE ETHERNET .............................................................................................19
3-2. LOGICAL LINK CONTROL (LLC).................................................................................20
3-3. MEDIA ACCESS CONTROL (MAC) ..............................................................................22
3-4. FLOW CONTROL .........................................................................................................27
3-5. HOW DOES A SWITCH WORK?......................................................................................30
3-6. VIRTUAL LAN............................................................................................................34
4. OPERATION OF WEB-BASED MANAGEMENT...................................................40
4-1. WEB MANAGEMENT HOME OVERVIEW ......................................................................41
4-2. CONFIGURATION.........................................................................................................43
4-2-1. System Information............................................................................................44
4-2-2. Port Configuration ............................................................................................48
4-2-3. VLAN Mode Configuration................................................................................50
4-2-4. VLAN Group Configuration...............................................................................51
4-2-5. VLAN Port Isolation Configuration...................................................................55
4-2-6. PoE....................................................................................................................56
4-2-7. Aggregation.......................................................................................................58
4-2-8. IGMP Snooping.................................................................................................59
4-2-9. Mirroring Configuration ...................................................................................61
4-2-10. QoS(Quality of Service) Configuration ...........................................................62
4-2-11. Loop Detection.................................................................................................65
4-2-12. Broadcast Storm Protection.............................................................................67
4-2-13. SNMP...............................................................................................................69
4-2-14. RSTP/STP........................................................................................................70
4-3. MONITORING ..............................................................................................................73
4-3-1. Statistics Overview ............................................................................................74
4-3-2. Detailed Statistics..............................................................................................75
4-3-3. RSTP/STP Status................................................................................................77
4-3-4. IGMP Status ......................................................................................................80
4-3-5. PoE Status .........................................................................................................82
4-3-6. Ping Status.........................................................................................................84

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4-4. MAINTENANCE ...........................................................................................................86
4-4-1. Warm Restart.....................................................................................................87
4-4-2. Factory Default .................................................................................................88
4-4-3. Software Upgrade..............................................................................................89
4-4-4. Configuration File Transfer...............................................................................90
4-4-5. Logout................................................................................................................91
5. MAINTENANCE............................................................................................................92
5-1. RESOLVING NO LINK CONDITION ...............................................................................92
5-2. Q&A ..........................................................................................................................92
APPENDIX A TECHNICALSPECIFICATIONS...........................................................96
Revision History
Date
Revision
Apr, 2014
A1
Jun, 2014
A1.1
Dec, 2014
A1.2
March, 2016
B

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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.
•If you need using outdoor device connect to this device with cable then you
need to addition an arrester on the cable between outdoor device and this
device.
Figure 1 Addition an arrester between outdoor device and this switch
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/EN61000-3 and the
Generic European Immunity Standard EN55024. EMC:
Warning:
•Self-demolition of Product is strictly prohibited. Damage caused by self-
demolition will be charged for repairing fees.
•Do not place product at outdoor or sandstorm.
•Before installation, please make sure input power supply and product
specifications are compatible to each other.
EN55022(2003)/CISPR-2( 2002)
class A
IEC61000-4-2 (2001)
4K V CD, 8KV, AD
IEC61000-4-3( 2002)
3V/m
IEC61000-4-4(2001)
1KV – (power line), 0.5KV – (signal line)

User Manual
Publication date: Dec, 2014
Revision A1.2
1
About this user manual
This user’s manual provides instructions on how to install your SM24TAT4GPA
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 the SM24TAT4GPA
Chapter 2 “Installation”
Chapter 3 “Operating Concept and Management”
Chapter 4 “Operation of Web-based Management”
Chapter 5 “Maintenance”
Appendix A Technical Specifications

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1. Introduction
1-1. Overview
The SM24TAT4GPA, 24-port Gigabit Managed PoE+ Switch from Transition
Networks has 20 10/100/1000Mbps copper ports (24 ports with PoE) and 4 Gigabit
RJ-45/SFP Combo slots. The switch supports IEEE802.3af and IEEE802at
standard.
.
Key Features
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. It supports 16 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.
Power Saving:
The Power saving using the "ActiPHY Power Management" and
"PerfectReach Power Management" two techniques to detect the client idle
and cable length automatically and provides the different power. It could
efficient to save the switch power and reduce the power consumption.
PoE: 24-PoE ports allow power to be supplied to end devices, such as Wireless
Access Points or VoIP Phones, directly through the existing LAN cables,
eliminating costs for additional AC wiring and reducing Installation Cost. It is
compliant with IEEE802.3af standard. It provides the endpoint with 48VDC
power through RJ-45 pin 1, 2, 3, 6, and the SM24TAT4GPA provides 370
watts of total power (up to 15.4 watts to 24 ports or up to 30Watts to 12
ports at the same time)
1-2. Checklist
Before you start to install the switch, verify that the package contains the
following:
SM24TAT4GPA
Mounting Accessory (for 19” Rack Shelf)
AC Power Cord
Please notify your sales representative immediately if any of the aforementioned
items is missing or damaged.

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1-3. Features
SM24TAT4GPA provides the comprehensive features listed below for users
to perform system network administration and efficiently and securely serve your
network.
•
Hardware
•
20 10/100/1000Mbps Auto-negotiation Gigabit Ethernet TP ports
•
4 10/100/1000Mbps Copper or 100/1000Mbps dual speed SFP
•512KB on-chip frame buffer
•Supports total 370 watts PoE output.
•
Jumbo frame support 9KB
•
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
•Power Saving with "ActiPHY Power Management" and "Perfect Reach Power
Management" techniques.
•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, PoE,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
• 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 Mode button of the switch
•
Supports hot 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 provides a convenient GUI for the user

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1-4. View of SM24TAT4GPA
1-4-1. Front Panel (Button, LEDs and Plugs)
There are 20-Port 10/100/1000Base-T + 4 100/1000 SFP/RJ-45 Combo slots
on the front panel of the switch. The LED display area, located 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 SM24TAT4GPA

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Mode Button Indicators
Pressing time
(seconds)
Function
<3 Switch mode LED indicator
3~10 Warm boot
>10 Reset factory default+ reboot
Mode LED Indicators
Mode LED
Color
Function
Link/Act Green Lit Green when Link/Act mode enable
Off when Link/Act mode disable
Speed Green Lit Green when Speed mode enable
Off when Speed Mode disable
PoE Green Lit Green when PoE mode enable
Off when PoE mode disable
LED Indicators
LED
Color
Function
System LED
POWER
Green
Lit when +3.3V power is coming up
10/100/1000Ethernet TP Port 1 to 20 LED
LINK/ACT Green Lit when connection with remote device is good
Blinks when any traffic is present
SPD Green/ Yellow/
Off
Lit Green when TP link on 1000Mbps speed
Lit Yellow when TP link on 10/100Mbps speed
Off when no link occur
1000SX/LX Gigabit Fiber Port 21,22,23,24 LED
LINK/ACT Green Lit when SFP connection with remote device is good
Blinks when any traffic is present
SPD Green/ Yellow/
Off
Lit Green when SFP link on 1000Mbps speed
Lit Yellow when SFP link on 100Mbps speed
Off when no link occur
Table1-1
The System LED displays red light alarm for the 4 cases below:
1. Voltage >= 13.2V or Voltage<=10.8V.
2. FAN speed <= 500 rpm or FAN speed >=9000 rpm.
3. Inlet temperature >=45 deg. Celsius or temperature near power >=70 deg Celsius.
4. When Loop Detection is enabled and looping occurred.

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1-4-2. the Rear Panel
Fig. 1-3 Rear View of SM24TAT4GPA

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2. Installation
2-1. Setup SM24TAT4GPA
This section will give users a quick start for:
-Hardware and Cable Installation
-Management Station Installation
-Software booting and configuration
2-1-1. Hardware and Cable Installation
At first:
⇒Wear a grounding device to avoid the damage from electrostatic discharge
⇒Be sure that power is OFF before you plug the power cord
Installing Optional SFP Transceivers to the SM24TAT4GPA Switch
Note: If you have no modules, please skip this section.
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.
Fig. 2-1 Installation of Optional SFP Fiber Transceiver

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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, and then flash all the LED and automatically performs self-
test and is in ready state.

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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.
2-1-2-1. Cabling Requirements for TP Ports
⇒For Fast Ethernet TP network connection
The grade of the cable must be Cat. 5 or Cat. 5e with a maximum length of
100 meters.
⇒Gigabit Ethernet TP network connection
The grade of the cable must be Cat. 5 or Cat. 5e with a maximum length of
100 meters. Cat. 5e is recommended.
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.

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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.
Fig. 2-2 No VLAN Configuration Diagram
Fig. 2-3 Port-based VLAN Diagram

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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

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2-1-3. Configuring the Management Agent of SM24TAT4GPA
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 via Ethernet Port
2-1-3-1. Configuring Management Agent of SM24TAT4GPA via Ethernet Port
There are two ways to configure and monitor the switch through the switch’s
Ethernet port. They are Web browser and SNMP manager. Here we just introduce
the Web interface. Web-based UI for the switch is an interface in a friendly way.
•
Managing SM24TAT4GPA through Ethernet Port
Before you manage with the switch, you need to configure the IP address or
to know the IP address of the switch. Then, follows the procedures listed below.
1. Set up a physical link between the configured the switch and a PC by a
qualified UTP Cat. 5 cable with RJ-45 connector.
Note: If PC directly connects to the switch, you have to setup the same subnet mask
between them. But, subnet mask may be different for the PC in the remote site.
Please refer to Fig. 2-6 about the SM24TAT4GPA default IP address information.
2. Run web browser and follow the menu. Please refer to Chapter 4.
Fig. 2-7 the Login Screen for Web
SM24TAT4GPA
Default IP Setting:
IP = 192.168.1.77
Subnet Mask = 255.255.255.0
Default Gateway = 192.168.1.254
Assign a reasonable IP address,
For example:
IP = 192.168.1.100
Subnet Mask = 255.255.255.0
Default Gateway = 192.168.1.254
Fig. 2-6
Ethernet LAN

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2-1-4. IP Address Assignment
For IP address configuration, there are three parameters needed to be filled
in. They are IP address, Subnet Mask, Default Gateway and DNS.
IP address: The address of the network device in the network is used for
internetworking communication. Its address structure looks is shown in the Fig. 2-8.
It is “classful” because it is split into predefined address classes or categories.
Each class has its own network range between the network identifier and
host identifier in the 32 bits address. Each IP address comprises two parts: network
identifier (address) and host identifier (address). The former indicates the network
where the addressed host resides, and the latter indicates the individual host in the
network which the address of host refers to. And the host identifier must be unique
in the same LAN. Here the term of IP address we used is version 4, known as IPv4.
Network identifier Host identifier
Fig. 2-8 IP address structure
With the classful addressing, it divides IP address into three classes, class A,
class B and class C. The rest of IP addresses are for multicast and broadcast. The
bit length of the network prefix is the same as that of the subnet mask and is
denoted as IP address/X, for example, 192.168.1.0/10. Each class has its address
range described below.
Class A:
Address is less than 126.255.255.255. There are a total of 126 networks can
be defined because the address 0.0.0.0 is reserved for default route and
127.0.0.0/8 is reserved for loopback function.
0
Class B:
IP address range between 128.0.0.0 and 191.255.255.255. Each class B
network has a 16-bit network prefix followed 16-bit host address. There are 16,384
(2^14)/16 networks able to be defined with a maximum of 65534 (2^16 –2) hosts
per network.
10
32 bits
Bit # 0 1 7 8 31
Network address Host address
Bit # 01 2 15 16 31
Network address Host address

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Class C:
IP address range between 192.0.0.0 and 223.255.255.255. Each class C
network has a 24-bit network prefix followed 8-bit host address. There are
2,097,152 (2^21)/24 networks able to be defined with a maximum of 254 (2^8 –2)
hosts per network.
110
Class D and E:
Class D is a class with first 4 MSB (Most significance bit) set to 1-1-1-0 and
is used for IP Multicast. See also RFC 1112. Class E is a class with first 4 MSB set
to 1-1-1-1 and is used for IP broadcast.
According to IANA (Internet Assigned Numbers Authority), there are three
specific IP address blocks reserved and able to be used for extending internal
network. We call it Private IP address and list below:
Class A
10.0.0.0 --- 10.255.255.255
Class B
172.16.0.0 --- 172.31.255.255
Class C
192.168.0.0 --- 192.168.255.255
Please refer to RFC 1597 and RFC 1466 for more information.
Subnet mask:
It means the sub-division of a class-based network or a CIDR block. The
subnet is used to determine how to split an IP address to the network prefix and the
host address in bitwise basis. It is designed to utilize IP address more efficiently and
ease to manage IP network.
For a class B network, 128.1.2.3, it may have a subnet mask 255.255.0.0 in
default, in which the first two bytes is with all 1s. This means more than 60
thousands of nodes in flat IP address will be at the same network. It’s too large to
manage practically. Now if we divide it into smaller network by extending network
prefix from 16 bits to, say 24 bits, that’s using its third byte to subnet this class B
network. Now it has a subnet mask 255.255.255.0, in which each bit of the first
three bytes is 1. It’s now clear that the first two bytes is used to identify the class B
network, the third byte is used to identify the subnet within this class B network and,
of course, the last byte is the host number.
Bit # 0 1 2 3 23 24 31
Network address Host address