Tyco Electronics 24 Port SNMP User manual

24 Port SNMP Managed Switch – User Manual Page 1

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

24 Port UTP 10/100Mbit/s

Ethernet Managed Switch with 2

Expansion Slots

-

Product User Guide

Introduction

24 Port SNMP Managed Switch – User Manual Page 2

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Disclaimer

Tyco Electronics makes no representation or warranties with respect to the contents hereof

and specifically disclaims any implied warranties or merchantability or fitness for any

particular purpose. Further, Tyco Electronics reserves the right to revise this publication and

make changes from time-to-time in the content hereof without obligation of Tyco Electronics

to notify any person of such revision or changes.

Features

• Conforms to IEEE802.3, 802.3u, 802.3z, 802.3x, 802.1p, 802.3ac, 802.1D and

802.1Q

• 24 auto-sensing 10/100Mbps Ethernet RJ-45 ports

• 2 Expansion slots for optional modules:

o 1-port Duplex SC Gigabit (SX/LX),

o 100Mbps Fiber (SC multimode and singlemode and MT-RJ),

o 10/100/1000Mb/s UTP with auto-negotiation and MDI/MDIX

• Store - And - Forward error free packet forwarding scheme

• 8K-entry MAC address table

• 128 VLANs

• 32 Multicast groups

• 6Mb shared memory

• 9.6 GB Backplane Bandwidth

• Full wire speed forwarding rate

• LED-indicators for Power, port speed/Link/Active, FDX/COL

• 10/100/1000M Gigabit Module LK/ACT, FDX/ COL status

Intelligent Management Features

• Console and Telnet Configuration

• Web-based management

• SNMP network management

• Asymmetrical bandwidth limiting and control on each port

• Port based VLANs

• MTU/MDU VLANs

• Tagged VLANs using IEEE802.1Q

• Programmable QoS

• Spanning Tree Protocol

• IGMP Snooping protocol supported

• Port mirroring

• TFTP support for firmware downloads

• RMON Statistics

24 Port SNMP Managed Switch – User Manual Page 3

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Package Contents

Unpack the carton of the 24 Port SNMP Managed Switch and verify them against the

checklist below.

24 Port SNMP Managed Switch Rubber Feet

Rack-mounted Kit RS-232 cable User Guide

Power Cord

Figure 1. Package Contents

Compare the contents of your 24 Port SNMP Managed Switch package with the standard

checklist above. If any item is missing or damaged, please contact your local dealer for

service.

24 Port SNMP Managed Switch – User Manual Page 4

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Management Methods

The 24 Port SNMP Managed Switch supports following management methods:

• Console and Telnet Management

• Web-based Management

• SNMP Network Management

Console and Telnet Management

Console Management is done through the RS-232 Console Port. Managing the 24 Port

SNMP Managed Switch in this method requires a direct connection between PC and the 24

Port SNMP Managed Switch. While Telnet management is done over the network. Once the

24 Port SNMP Managed Switch is on the network, you can use Telnet to log in and change

the configuration. The automatic log-out times can be programmed and are detailed on pages

36 and 56. See page 12 for details.

Web Based Management

The switch can be managed using a standard web browser that supports Java applets. This

interface has the same functionality as the console/Telnet interfaces but is more user-friendly.

See page 38 for details.

SNMP Network Management

SNMP (Simple Network Management Protocol) provides a means to monitor and control a

network device, and to manage configurations, statistic collection, performance and security.

Data is passed from SNMP agents, which are hardware & software processes reporting

activity in each network device to the workstation console used to oversee the network. The

agent returns information contained in a MIB (Management Information Base), which is a data

structure that defines what is obtainable from the device and what can be controlled.

24 Port SNMP Managed Switch – User Manual Page 5

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Hardware Description

The 24 Port SNMP Managed Switch has fixed 24-port auto-sensing Ethernet RJ-45

connectors, and a chassis containing two expansion slots. The optional modules enable the

switch to be used in new and legacy networks.

The Front Panel

The front panel of the switch consists of 24 x auto-sensing 10/100Mbps Ethernet RJ-45 Ports,

two optional expansion slots, and console port. The LED Indicators are also located on the

front panel of the Switch.

Figure 2. The Front Panel of 24 Port SNMP Managed Switch

10/100Base-TX Auto MDI/MDIX RJ-45 Ports

The switch has 24 x 10/100Mbps auto-sensing ports for 10Base-T or 100Base-TX device

connection. The auto-MDI/MDIX function enables the direct connection another switch or

workstation without needing to select either a straight or cross-over cable.

Expansion Slots

The switch can support up to two of the following optional single port modules, which can be

used in any combination:

• 10/100/1000Mbps Auto-MDI/MDI-X RJ-45 module

• 1000Base-SX multimode fiber module

• 1000Base-LX singlemode fiber module

• 100Base-FX SC multimode fiber module

• 100Base-FX MT-RJ multimode fiber module

• 100Base-FX SC singlemode fiber module

LED Indicators

RJ-45 Ports

Console Port

Expansion Slots for Option Modules

24 Port SNMP Managed Switch – User Manual Page 6

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Console Port

The switch can be fully managed using the console port providing a direct connection

between the switch and an end station such as a PC via the supplied RS-232 cable.

LED Indicators

Figure 3. The LED Indicators

All LED indicators are located on the front panel of the 24 Port SNMP Managed Switch and

provide a real-time indication of switch and operational status. The following table details the

LED states:-

LED Status Description

Green Power On

PWR

Off Power is Off.

Green The port is operating at the speed of 100Mbps.

100

Off No device is attached or in 10Mbps mode

Green The port is connected to an Ethernet device.

Blinks The port is receiving or transmitting data

LK/ACT

Off No device is attached

Orange The port is operating in Full-duplex mode

Blinks Collision of packets is occurring on the port

FD/COL

Off No device is attached or the port is in half-duplex mode

Figure 4. Descriptions of LED Indicators

24 Port SNMP Managed Switch – User Manual Page 7

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Rear Panel

The 3-pronged power socket and the On/Off switch are located at the rear panel of the switch.

The switch operates over the range 100-240V AC, 50-60Hz without adjustment.

Figure 5. The Rear Panel of the 24 Port SNMP Managed Switch

Diagnostic Test

After the installation is completed and AC power is applied to the Switch, the system will

automatically perform a diagnostic test. If a console session is active at this time then it is

possible to see each stage of this start-up and test procedure as it is carried out.

This procedure will take up to 5 minutes to complete. Upon completion the switch will start in

a default condition and begin to pass traffic.

24 Port SNMP Managed Switch – User Manual Page 8

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Installation

.

Pre-Installation Requirements

Before you start hardware installation, make sure your installation environment has below

items:

 PC with 10/100Mbps Ethernet NICs / 100Mbps Fiber NICs:

Your PC must have a standard Ethernet RJ-45 interface to connect to the Switches copper

port.

 UTP cable with RJ45 connectors: Ensure that you use a tested cable.

 AC Power: 100 to 240V AC at 50/60 Hz: Make sure that the power is accessible and the

AC power cable can be and disconnected and connected easily.

 Dedicated power supply: Use dedicated AC or power conditioners to supply reliable

electrical power to the network devices.

 A dry cool place: Keep the Switch away from moisture. Avoid direct sunlight, sources of

heat, and a high amount of electromagnetic interference.

 Mounting tools: If you intend to mount the Switch in a rack, make sure you have all the

tools, mounting brackets, screws etc.

Caution:

Cabling must be away from sources of electrical noise such as radio, computers, transmitters,

broadband amplifiers, power lines etc.

Airflow around the Switch and through its vents on the rear must not be restricted.

Mounting the Switch

The 24 Port SNMP Managed Switch is suitable for use in an office environment where it can

be rack-mounted in standard EIA 19-inch racks or standalone.

Desktop Mounting

Set the Switch on a sufficiently large flat space with a power outlet nearby, and near the

center of all networked devices.

Make sure mounting surface on the bottom of the Switch is grease dust free.

Remove adhesive backing from your Rubber Feet.

Figure 3-1. Attaching Rubber Feet to each corner on the bottom of the

Switch

Apply the Rubber Feet to each corner on the bottom of the Switch. These footpads can

prevent the Switch from shock/vibrations.

Caution: Do not place objects on top of the Switch.

24 Port SNMP Managed Switch – User Manual Page 9

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Rack-mounted Installation

The 24 Port SNMP Managed Switch is supplied with a rack-mounted kit and can be mounted

in an EIA standard size, 19-inch rack. The Switch can be placed in a wiring closet with other

equipment.

Perform the following steps to rack mount the Switch:

Position one bracket to align with the holes on one side of the Switch and secure it with the

smaller bracket screws. Then attach the remaining bracket to the other side of the Switch.

Figure 3-2. Attach mounting brackets with screws

After attaching both mounting brackets, position the switch in the rack by lining up the holes in

the brackets with the appropriate holes on the rack. Secure the switch to the rack with the

rack-mounting screws.

Figure 3-3. Mount the 24TP+1Fiber Module Switch in an EIA standard 19-

inch Rack

Note: For proper ventilation, allow about at least 4 inches (10 cm) of clearance on the front

and 3.4 inches (8 cm) on the back of the Switch. This is especially important for enclosed rack

installation.

24 Port SNMP Managed Switch – User Manual Page 10

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Connecting to the Switch

The Console port is a male DB-9 connector located on the front panel of the switch that

enables a connection to a PC or terminal for monitoring and configuration. Use the supplied

RS-232 cable with a female DB-9 connector to connect a terminal or PC to the Console port.

The Console configuration allows you to program the Switch to enable a user at a remote

location to communicate with the unit as if the console terminal were directly connected.

Figure 3-4. Connecting the 24 Port SNMP Managed Switch to a terminal via

RS-232 cable

24 Port SNMP Managed Switch – User Manual Page 11

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Quick Start Guide

If you do not need to apply VLANs, Quality of Service, adjust any settings or manage the

switch via the network, then the switch can be used “straight-from-the-box” to carry network

traffic. In that case, no further action is needed. If you want to use the management settings

or controls, then a little work is needed to configure the switch.

1. After the installation is completed and AC power is applied to the switch, the unit will

automatically perform a diagnostic test. The switch loads its operating code from memory

and performs a full power-on self test. The screen will display the self-test progress, but

do not press any keys at this stage. This power-up sequence takes approx. 90 seconds to

complete. The web interface will take a further 30 seconds to become operational.

2. Configure you PC terminal emulation program such as HyperTerminal to allow it to

communicate with the switch via the supplied serial cable connected to the front panel

Console port. Set the emulation program for 9600, 8, No Parity, No Flow Control. See

page 12 for details

3. When the password and user name prompt is displayed, use the default username of

root in lower case letters. Use the password root. The main menu screen will be

displayed. Use either cursor keys or the tab key to navigate up and down the menu.

Select the item using the <CR> key. The <ESC> key will return you to the previous menu

level.

4. If the switch is to be managed over the LAN using the Telnet, SNMP or the web browser

functions, then an IP address is to be assigned to the switch. See page 14 for details. If

the switch is not being managed over the LAN, then go to page 12 below.

5. Once an IP address has been assigned to the switch, it should be possible to PING the

switch over the network. This will prove that the switch is present and responding

correctly to network requests. See page …. For details.

6. Now that the switch can be accessed over the network, use a browser application to open

up the configuration screens. Enter the switch IP address into the browser Address

window and use the same user name and password set as in 3 above.

7. Using the preferred method (console, Telnet or web browser), configure the switch to

meet your network requirements. Always save the configuration at the end of each action.

8. If you need to revert the switch back to the factory default configuration, then see page 36

or page 55.

24 Port SNMP Managed Switch – User Manual Page 12

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Management Using The Console

Configuring the Console Interface

When the connection between Switch and PC is complete, turn on the PC and run a terminal

emulation program such as Hyper Terminal and configure its communication parameters to

match the following default characteristics of the console port:

Baud Rate: 9600 bps

Data Bits: 8

Parity: none

Stop Bit: 1

Control flow: None

Figure 6. The settings of communication parameters

Figure 7. Initial Start-Up Screen

After you have finished parameter settings, click “OK“ on the PC. When the screen shows

above, enter root in lower case letter for the User Name, and enter the<CR> or return key

twice. A password is required for the default root name the password is root. The Main Menu

of console management appears.

24 Port SNMP Managed Switch – User Manual Page 13

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Main Menu Screen

After login you will see the Main Menu screen below. Use the <tab> or cursor keys to step

through the sub-menus. Select the required sub-menu using the <CR> or enter key.

Figure 8. Main Menu Screen

System Information

The sub-menu screen displays information such as switch hardware, software versions, and

system up time. You can also enter specific information about you and your organization

here. Ensure that the setting are saved using the Save function.

24 Port SNMP Managed Switch – User Manual Page 14

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

Management Setup Menu Screen

Figure 9. The Management Setup Menu

The management setup menu contains 6 submenus and are discussed below.

Network Configuration Menu

Figure 10. The Network Configuration Menu

This menu displays the switch MAC address and enables the IP address of the switch to be

configured to the network. To change the IP switch setting: -

1. Use the <TAB> or cursor keys to highlight the New IP Address field.

2. Enter the new IP Address as required.

3. Use <TAB> or cursor keys to highlight the New Subnet Mask field.

4. Enter the new Subnet mask address as required.

5. Use <TAB> or cursor keys to highlight the default gateway field.

6. Enter the IP address of the default gateway as required.

7. Use the <TAB> or cursor keys to highlight the Save field and then select the Save

using the <CR or Return> key to save the IP address changes.

24 Port SNMP Managed Switch – User Manual Page 15

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

8. The changes that have been made will only appear in the “New” column but not in the

current column, to activate the new settings and make them current the switch will

need restarting. See section 5.1 for how to restart switch.

After restarting the switch it is advisable to check that changes have been made current by

checking the network configuration menu again.

The following menu options enable detailed changes to the serial port and SNMP

configuration. These menus are not used in most instances.

Serial Port Configuration Menu

Figure 11. The Serial Port Configuration

Although you can change the serial link characteristics, we strongly recommend that the

above default values are retained.

24 Port SNMP Managed Switch – User Manual Page 16

Product Number 0-1591058-x © Tyco Electronics 2003 PL0351 Issue 1

SNMP Community Setup Menu

Figure 12. The SNMP Community Menu

In the SNMP Community Menu, you can create different communities and customize their

access rights. Use <TAB> or cursor keys to move the highlight bar and select desired

community to modify or add a new community (use space bar to toggle the access right and

status values).

Trap Receiver Menu

Figure 13. The Trap Receiver Menu

Use trap receiver screen to designate a certain community to receive trap(s) generated by the

switch.

24 Port SNMP Managed Switch – User Manual Page 17

Management Capability Setup Menu

Figure 14. The Management Capability setup Menu

This menu option allows the web based management facility to be enabled or disabled. This

is achieved by using the <space> bar to toggle between Enable and Disable states. It is

recommended that a modern Java based Internet Explorer or Netscape Navigator browser be

used.

Trap Filter Setup Menu

Figure 15. The Trap Filter Setup menu

The switch can generate a set of SNMP traps upon the occurrence of certain events. By

marking the filter box with a check, the filter is disabled and this will allow the generation of a

trap associated with that event. Toggle the check box using the <space> key.

24 Port SNMP Managed Switch – User Manual Page 18

Device Control Menu

This is a high level menu that controls much of the configuration of the switch.

Figure 16 . The Device Control menu

Move the <Tab> or cursor keys to highlight the required function and the press the <CR or

Return> key to select the function.

Switch Device Configuration Menu

Figure 17. The Switch Device Configuration Menu

This menu sets numerous key functions and modes for the entire switch. It is recommended

that the required modes are set using this menu before attempting to configure port details.

24 Port SNMP Managed Switch – User Manual Page 19

The Switch Device Configuration menu options are listed below. Use the <space> bar to

toggle modes, or enter time values directly:-

• The Spanning Tree Protocol for the switch is enabled or disabled in this menu.

• The Dynamic Ageing Time is the number of seconds that an entry will be stored in

the switch ARL table before it is aged out. The default is 300 seconds, but in some

test applications, it may be desirable to reduce this time.

• Ingress filtering when enabled the switch will reject all tagged VLAN traffic not

intended for the port that is receiving the tagged packet.

• The Per Port Priority control allows the ports to be allocated specific priority values

from the Switch Port Configuration menu.

• The HOLB Prevention control either enables or disables Head Of Line Blocking. This

is an advanced function associated with egress flow control and heavily loaded

networks where it is desirable to constrain the use of switch buffers to protect other

ports. It is recommended that this control is left in the <enabled> state for normal

network applications.

• When QoS (Quality of Service) is enabled you can map the Type of Service of your

choice (according to IEEE 802.1p) to the four priority levels provided.

• The switch supports three different VLAN modes:-

o Port Based VLAN,

o IEEE 802.1Q VLAN

o MTU/MDU VLAN.

The choice made here will ultimately decide the VLAN mode and function for the entire

switch. See Below for VLAN description.

• The GVRP Enable State allows structured and centralized VLAN registration in multi-

switch networks, To enable this function, use the <space> bar to toggle the

enable/disable mode.

• The IGMP Snooping mode is used for multicast environments where the switch

participates in multicast operations. To enable this function, use the <space> bar to

toggle the enable/disable mode.

• The IGMP Snoop Table Ageing time sets the timeout for multicasts. Enter the value

directly into this field.

Port Based VLAN

This mode is the simplest form of VLAN and is intended where basic VLANs on a single

switch are required. This mode allows specified physical ports on the switch to be grouped

into single collision domains to prevent any traffic from other domains entering that zone. An

example is where the Engineering workstations must not be allowed to access the HR

network area. The security of Port Based VLANs is limited and dependant on the physical

security of the switch and its connections. The IEEE802.1Q tag attribute is ignored by Port

Based VLANs .

IEEE 802.1Q VLAN

This is a more common form of enterprise VLAN where traffic is tagged with a VLAN identifier,

which specifies which groups can receive the traffic. Each packet is tagged with a VLAN ID

number and the switch makes decisions on the logical groupings of these VLAN Ids. For

example, Engineering may be assigned VLANID 20, Sales assigned VLAN ID 30 and HR

assigned VLAN ID 40.

MTU/MDU VLAN

This mode is typically used in fiber-to-the-home applications where it is desirable to place

each physical switch port into a different VLAN for security purposes.

24 Port SNMP Managed Switch – User Manual Page 20

Switch Port Configuration

Figure 18. The Switch Port Configuration Menu

This menu is used to select and then configure the required ports. The first element

highlighted in the menu is the Group ID. The switch is divided into 3 groups:-

• A = Ports 1-12,

• B = Ports 13-24,

• C = The 2 option slots (ports 25 and 26).

Use the <space> key to toggle between the different port groups. Alternatively, you can move

to different groups by using the Prev Page and Next Page fields at the bottom of the screen.

Highlight the required switch port by using the <Tab> or cursor key to move through the port

list of the selected group. Select the port by using the <CR> or Return key. This action opens

a new sub-menu that allows the specified port to be configured.

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