3COM 4210G User Manual

0 (0)
3Com Switch 4210G Family
Getting Started Guide
Manual Version:
6W100-20100203
www.3com.com
3Com Corporation
350 Campus Drive, Marlborough,
MA, USA 01752 3064
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provided to you subject to the following:
All technical data and computer software are commercial in nature and developed solely at private expense.
Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227 -7014 (June 1995) o r
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Establishing environmental performance standards that comply with national legislation and regulations.
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About This Manual

Organization

3Com Switch 4210G Family Getting Started Guide is organized as follows:
Chapter Contents
1 Router Overview
Briefly introduces the appearance, system description, as well as
the features and applications of the 3Com Switch 4210G Family.
2 Preparing for Installation
Describes the requirements on installation site, the safety
recommendations before and during installation, and the re quired
tools.
3 Installing the Switch
Covers the procedures for installing the 3Com Switch 4210G
Family, ground wire connection, power module installation,
interface module installation, and so on.
4 Starting and Configuring the
Switch
Helps you get familiar with the basic knowledge of ho w to boot and
configure the 3Com Switch 4210G Family, including device
startup, power-on, and initialization of system files, and so on.
5 Boot ROM and Host
Software Loading
Introduces how to load Boot ROM and host software for the
3Com Switch 4210G Family.
6 Maintenance and
Troubleshooting
Introduces the problems that might occur during the installation
and the booting of the 3Com Switch 4210G Family and the related
solution.

Conventions

The manual uses the following conventions:
Command conventions
Convention Description
Boldface
The keywords of a command line are in Boldface.
italic
Command arguments are in italic.
[ ] Items (keywords or arguments) in square brackets [ ] are optional.
{ x | y | ... }
Alternative items are grouped in braces and separated by vertical bars.
One is selected.
[ x | y | ... ]
Optional alternative items are grouped in square brackets and
separated by vertical bars. One or none is selected.
{ x | y | ... } *
Alternative items are grouped in braces and separated by vertical bars.
A minimum of one or a maximum of all can be selected.
[ x | y | ... ] *
Optional alternative items are grouped in square brackets and
separated by vertical bars. Many or none can be selected.
&<1-n>
The argument(s) before the ampersand (&) sign can be entered 1 to n
times.
# A line starting with the # sign is comments.
GUI conventions
Convention Description
Boldface
Window names, button names, field names, and menu items are in
Boldface. For example, the New User window appears; click OK.
>
Multi-level menus are separated by angle brackets. For example, File >
Create > Folder.
Symbols
Convention Description
Means reader be extremely careful. Improper operation may cause
bodily injury.
Means reader be careful. Improper operation may cause data loss or
damage to equipment.
Means an action or information that needs special attention to ensure
successful configuration or good performance.
Means a complementary description.
Means techniques helpful for you to make configuration with ease.

Related Documentation

In addition to this manual, each 3Com Switch 4210G documentation set includes the following:
Manual Description
3Com Switch 4210G Family
Configuration Guide
Describe how to configure your 4210 Switch using the supported
protocols and CLI commands.
3Com Switch 4210G Family
Command Reference Guide
Provide detailed descriptions of command line interface (CLI)
commands, that you require to manage your switch.

Obtaining Documentation

You can access the most up-to-date 3Com product documentation on the Wo rld Wide Web at this URL:
http://www.3com.com.
i
Table of Contents
1 Product Overview······································································································································1-1
Overview ·················································································································································1-1
Introduction to Switch 4210G··················································································································1-3
Switch 4210G 24-Port ·····················································································································1-3
Switch 4210G 48-Port ·····················································································································1-4
Switch 4210G PWR 24-Port············································································································1-5
Switch 4210G PWR 48-Port············································································································1-6
Switch 4210G NT 24-Port ···············································································································1-7
Switch 4210G NT 48-Port ···············································································································1-8
Ports························································································································································1-8
Console Port····································································································································1-8
10/100/1000Base-T Ethernet Port···································································································1-9
1000Base-X SFP Port ·····················································································································1-9
Combo Port ···································································································································1-10
LEDs······················································································································································1-10
System Status LED ·······················································································································1-11
RPS Status LED ····························································································································1-11
Port Mode LED ······························································································································1-11
Seven-Segment LED·····················································································································1-12
10/100/1000Base-T Auto-Sensing Ethernet Port Status LED·······················································1-13
1000Base-X SFP Port Status LED································································································1-14
Interface Module Status LED ········································································································1-15
Optional Interface Modules ···················································································································1-15
Short-haul Dual-Port 10 GE CX4 Interface Module ······································································1-15
Dual-Port 10 GE XFP Interface Module ························································································1-16
One-port 10 GE XFP Interface Module ·························································································1-17
Dual-Port 10 GE SFP+ Interface Module ······················································································1-18
Description of LEDs of Interface Modules ·····················································································1-19
2 Preparing for Installation··························································································································2-1
Safety Precautions ··································································································································2-1
Installation Site········································································································································2-1
Temperature/Humidity·····················································································································2-2
Cleanness········································································································································2-2
Electromagnetic Susceptibility·········································································································2-2
Laser Safety ····································································································································2-3
Installation Tools ·····································································································································2-3
3 Installing the Switch··································································································································3-1
Installation Flow of the Switch·················································································································3-1
Installing the Switch into a 19-Inch Rack Using Mounting Brackets·······················································3-2
Introduction to Mounting Bracket·····································································································3-2
Use Front Mounting Brackets to Install a Switch·············································································3-3
Use Front Mounting Brackets and a Tray to Install a Switch ··························································3-4
Use Front and Rear Mounting Brackets to Install a Switch·····························································3-5
ii
Mounting the Switch on a Workbench ····································································································3-8
Connecting the Grounding Cable············································································································3-9
When a Grounding Strip is Available·······························································································3-9
Where a Grounding Conductor Can be Buried ·············································································3-10
In Other Installation Sites ··············································································································3-11
Connecting the Power Cords ················································································································3-12
Connecting the AC Power Cord ····································································································3-12
Connecting the RPS Power Cord··································································································3-13
Installing an Interface Module ···············································································································3-15
Installing an Interface Card ···········································································································3-15
Removing an Interface Module ·····································································································3-16
Installing Dedicated CX4/SFP+ Cable ··························································································3-16
Removing Dedicated CX4/SFP+ Cable ························································································3-17
Installing Switches for an IRF ···············································································································3-17
Installation Flow for an IRF············································································································3-18
Drawing a Plan for an IRF with Switches ······················································································3-19
Verifying the Installation························································································································3-22
4 Starting and Configuring the Switch·······································································································4-1
Setting up the Configuration Environment ······························································································4-1
Connecting the Console Cable ···············································································································4-1
Console Cable ·································································································································4-1
Connection Procedure·····················································································································4-2
Setting Terminal Parameters ··················································································································4-2
Booting the Switch ··································································································································4-5
Checking before Powering on the Switch························································································4-5
Powering on the Switch···················································································································4-5
Changing the Startup Mode ············································································································4-7
5 Boot ROM and Host Software Loading ···································································································5-1
Introduction to Loading Modes················································································································5-1
Loading Software Through the Boot ROM Menu····················································································5-1
Boot Menu ·······································································································································5-1
Loading Software Using XMODEM Through Console Port·····························································5-3
Loading Software Using TFTP through Ethernet Port·····································································5-8
Loading Software Using FTP Through Ethernet Port····································································5-10
Loading Software Through CLI ·············································································································5-12
Loading Software Using FTP ········································································································5-12
Loading Software Using TFTP ······································································································5-13
6 Maintenance and Troubleshooting··········································································································6-1
Software Loading Failure ························································································································6-1
Password Missing Failure ·······················································································································6-1
Missing User Password ···················································································································6-1
Missing Boot ROM Password··········································································································6-1
Power Supply Failure······························································································································6-2
AC input···········································································································································6-2
RPS input ········································································································································6-2
RPS&AC input ·································································································································6-2
Fan Failure ··············································································································································6-3
iii
Configuration System Failure··················································································································6-4
Troubleshooting when there is no terminal display ·········································································6-4
Troubleshooting when the terminal display is illegible ····································································6-4
1-1

1 Product Overview

Overview

3Com Switch 4210G Family (hereinafter referred to as the Switch 4210G ) are Layer 3 Gigabit Ethernet
switching products developed by 3Com Corporation. (Hereinafter referred to as 3Com).
The Switch 4210G are designed as distribution or access devices for intranets and metropolitan area
networks (MANs). Supporting IPv4/IPv6 dual stack, the Switch 4210G provide abundant service
features.
The Switch 4210G include six models, and have the system specifications as shown in
Table 1-1. They
all support the 3Com-specific cluster management function, which facilitates your network management.
And four models of the Switch 4210G also support 10 GE uplink interfaces and the Intelligent Resilient
Framework (IRF) technology. You can connect multiple 4210G switches through 10 GE ports to form a
logical entity, thus to establish a new intelligent network with high reliability, expandability and
manageability.
Table 1-1 System specifications of the Switch 4210G
Item
4210G 24-Port
4210G NT
24-Port
4210G 48-Port
4210G NT
24-Port
4210G PWR
24-Port
4210G PWR
48-Port
Physical
dimensions
(H × W × D)
43.6 × 440 × 300 mm
(1.72 × 17.32 × 11.81 in.)
43.6 × 440 × 420 mm
(1.72 × 17.32 × 16.54 in.)
Weight <4.4 kg (9.70 lb)
< 4.7 kg
(10.36 lb)
<6.9 kg
(15.21 lb)
<7.4 kg (16.31 lb)
Management port
One console port, on the front panel
Auto-sensing
10/100/1000Base-
T Ethernet ports
(on the front panel)
24 48
24
Supports PoE
48
Supports PoE
1000 Base-X SFP
ports
(on the front panel)
4, each 1000 Base-X SFP port and the corresponding auto-sensing
10/100/1000Base-T Ethernet port form a Combo port.
: For each Combo port, either the SFP port or the corresponding
10/100/1000Base-T Ethernet port can be used at a time. For details about the
combo port mapping relationship, please refer to
Table 1-4.
Interface modules
supported
(optional, on the
rear panel)
Switch 4210G NT 24-Port and Switch 4210G NT 48-Port do not support any
interface modules;
Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G PWR 24-Port,
and Switch 4210G PWR 48-Port support two interface modules respectively,
which can be:
z Short-haul dual-port 10GE CX4 interface module (3C17767, support IRF)
z Dual-port 10 GE XFP interface module (3C17766, support IRF)
z One-port 10 GE XFP interface module (3C17768, support IRF)
z Dual-port 10 GE SFP+ interface module (LSPM2SP2P, support IRF)
1-2
Item
4210G 24-Port
4210G NT
24-Port
4210G 48-Port
4210G NT
24-Port
4210G PWR
24-Port
4210G PWR
48-Port
Power socket
types and quantity
1 AC power socket and 1 RPS power socket
: The two power inputs can be simultaneously used, acting as
backup for each other. Alternatively, you can use either power input.
AC input
Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz
Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz
Rated voltage range: 10.8 VDC to
13.2 VDC
RPS500-A3 (+12 V/10.5 A output,
power cable 0404A03C)
Rated voltage range: –52 VDC to –55
VDC
RPS1000-A3 (–54 V/25 A output,
power cable 0404A053)
Input
voltage
RPS
input
: Please use the external RPS power supply units recommended
by 3Com only.
Static power
consumption
4210G 24-Port:
36 W
4210G NT
24-Port: 35 W
4210G 48-Port:
55 W
4210G NT
48-Port: 54 W
55 W 78 W
Power
consumption (full
load)
4210G 24-Port:
103 W
4210G NT
24-Port: 62 W
4210G 48-Port:
145 W
4210G NT
48-Port: 110 W
495 W, with
125 W of
system power
consumption
and 370 W of
PoE power
550 W when RPS is
not connected, with
180 W of system
power consumption
and 370 W of PoE
power
920 W when RPS is
connected, with 180
W of system power
consumption and
740 W of PoE power
Cooling system Four fans for heat dissipation Six fans for heat dissipation
Operating
temperature
0°C to 45°C (32°F to 113°F)
Relative humidity
(noncondensing)
10% to 90%
For details about the external RPS power supply units, see the RPS500-A3 User Manual and
RPS1000-A3 User Manual.
1-3

Introduction to Switch 4210G

Switch 4210G 24-Port
Front Panel
Figure 1-1 Front panel of the Switch 4210G 24-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) 1000Base-X SFP port (4) 1000Base-X SFP port status LED
(5) Console port (6) Seven-segment LED
(7) Port mode LED (Mode) (8) System status LED (PWR)
(9) RPS status LED (RPS) (10) Interface module 1 status LED (MOD1)
(11) Interface module 2 status LED (MOD2) (12) Port status LED mode switching button
Rear Panel
Figure 1-2 Rear panel of the Switch 4210G 24-Port Ethernet switch
(1) AC power input (2) RPS power input (shipped with a protective cover)
(3) Grounding screw (4) Interface module slot 1 (MOD1)
(5) Interface module slot 2 (MOD2)
The Switch 4210G 24-Port provides two interface module slots on its rear panel. Each slot is installed
with a filler panel when the switch is shipped. You can select one or two interface modules for your
switch as needed. See
Optional Interface Modules on page 1-15 for the interface module models
supported by the Switch 4210G, and see
Connecting the RPS Power Cord on page 3-14 for the
installation of interface modules.
1-4
Switch 4210G 48-Port
Front Panel
Figure 1-3 Front panel of the Switch 4210G 48-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) Console port (4) Seven-segment LED
(5) Port mode LED (Mode) (6) System status LED (PWR)
(7) RPS status LED (RPS) (8) Interface module 1 status LED (MOD1)
(9) Interface module 2 status LED (MOD2) (10) Port status LED mode switching button
(11) 1000Base-X SFP port (12) 1000Base-X SFP port status LED
Rear Panel
Figure 1-4 Rear panel of the Switch 4210G 48-Port Ethernet switch
(1) AC power input (2) RPS power input (shipped with a protective cover)
(3) Grounding screw (4) Interface module slot 1 (MOD1)
(5) Interface module slot 2 (MOD2)
The Switch 4210G 48-Port provides two interface module slots on its rear panel. Each slot is installed
with a filler panel when the switch is shipped. You can select one or two interface modules for your
switch as needed. See
Optional Interface Modules on page 1-15 for the interface module models
supported by the Switch 4210G, and see
Connecting the RPS Power Cord on page 3-14 for the
installation of interface modules.
1-5
Switch 4210G PWR 24-Port
Front Panel
Figure 1-5 Front panel of the Switch 4210G PWR 24-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) 1000 Base-X SFP port (4) 1000Base-X SFP port status LED
(5) Console port (6) Seven-segment LED
(7) Port mode LED (Mode) (8) System status LED (PWR)
(9) RPS status LED (RPS) (10) Interface module 1 status LED (MOD1)
(11) Interface module 2 status LED (MOD2) (12) Port status LED mode switching button
Rear Panel
Figure 1-6 Rear panel of the Switch 4210G PWR 24-Port Ethernet switch
(1) RPS power input (2) AC power input
(3) Grounding screw (4) Interface module slot 1 (MOD1)
(5) Interface module slot 2 (MOD2)
The Switch 4210G PWR 24-Port provides two interface module slots on its rear panel. Each slot is
installed with a filler panel when the switch is shipped. You can select one or two interface modules for
your switch as needed. See
Optional Interface Modules on page 1-15 for the interface module models
supported by the Switch 4210G, and see
Connecting the RPS Power Cord on page 3-14 for the
installation of interface modules.
1-6
Switch 4210G PWR 48-Port
Front Panel
Figure 1-7 Front panel of the Switch 4210G PWR 48-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) Console port (4) Seven-segment LED
(5) Port mode LED (Mode) (6) System status LED (PWR)
(7) RPS status LED (RPS) (8) Interface module 1 status LED (MOD1)
(9) Interface module 2 status LED (MOD2) (10) Port status LED mode switching button
(11) 1000Base-X SFP port (12) 1000Base-X SFP port status LED
Rear Panel
Figure 1-8 Rear panel of the Switch 4210G PWR 48-Port Ethernet switch
(1) RPS power input (2) AC power input
(3) Grounding screw (4) Interface module slot 1 (MOD1)
(5) Interface module slot 2 (MOD2)
The Switch 4210G PWR 48-Port provides two interface module slots on its rear panel. Each slot is
installed with a filler panel when the switch is shipped. You can select one or two interface modules for
your switch as needed. See
Optional Interface Modules on page 1-15 for the interface module models
supported by the Switch 4210G, and see
Connecting the RPS Power Cord on page 3-14 for the
installation of interface modules.
1-7
Switch 4210G NT 24-Port
Front Panel
Figure 1-9 Front panel of the Switch 4210G NT 24-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) 1000 Base-X SFP port (4) 1000Base-X SFP port status LED
(5) Console port (6) Seven-segment LED
(7) Port mode LED (Mode) (8) System status LED (PWR)
(9) RPS status LED (RPS) (10) Port status LED mode switching button
Rear Panel
Figure 1-10 Rear panel of the Switch 4210G NT 24-Port Ethernet switch
(1) AC power input (2) RPS power input (shipped with a protective cover)
(3) Grounding screw (4) “DO NOT REMOVE” label
The Switch 4210G NT 24-Port does not support any interface modules.
1-8
Switch 4210G NT 48-Port
Front Panel
Figure 1-11 Front panel of the Switch 4210G NT 48-Port Ethernet switch
(1) 10/100/1000 Base-T auto-sensing Ethernet port
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED
(3) Console port (4) Seven-segment LED
(5) Port mode LED (Mode) (6) System status LED (PWR)
(7) RPS status LED (RPS) (8) Port status LED mode switching button
(9) 1000Base-X SFP port (10) 1000Base-X SFP port status LED
Rear Panel
Figure 1-12 Rear panel of the Switch 4210G NT 48-Port Ethernet switch
(1) AC power input (2) RPS power input (shipped with a protective cover)
(3) Grounding screw (4) “DO NOT REMOVE” label
The Switch 4210G NT 48-Port does not support any interface modules.

Ports

Console Port
Each Switch 4210G provides one console port on the front panel. Table 1-2 describes the console port
specifications.
1-9
Table 1-2 Console port specifications
Item Specification
Connector type
RJ-45
Compliant standard
EIA/TIA-232
Transmission baud rate 9600 bps to 115200 bps (defaulting to 19200 bps)
Service
z It can be connected to an ASCII terminal.
z It can be connected to a serial port of a local or remote (through a
pair of modems) PC running terminal emulation program.
10/100/1000Base-T Ethernet Port
Each Switch 4210G provides 10/100/1000Base-T Ethernet ports on its front panel. Table 1-3 describes
the specifications of the 10/100/1000Base-T Ethernet ports.
Table 1-3 10/100/1000Base-T Ethernet port specifications
Item Specification
Connector type
RJ-45
Interface standard
z 10 Mbps, full duplex
z 100 Mbps, full duplex
z 1000 Mbps, full duplex
z MDI/MDI-X, auto-sensing
Max transmission distance
100 m (328.08 ft.)
Transmission medium
Category-5 unshielded twisted pair cable
Standard
IEEE 802.3i, 802.3u, 802.3ab
1000Base-X SFP Port
The SFP ports on the front panel of Switch 4210G supports fiber Gigabit Ethernet long-wave (LX),
long-haul (LH70) and copper (T) transceivers in any combination..
All SFP transceivers are hot swappable and optional. Therefore, networking is more flexible.
z You are recommended to use SFP transceivers of 3Com on the Switch 4210G.
z The types of SFP transceivers may update with time. For information about transceivers, contact
3Com technical support or marketing staff.
1-10
Combo Port
One SFP port and the corresponding 10/100/1000Base-T Ethernet port form a Combo port. For each
Combo port, either the SFP port or the corresponding 10/100/1000Base-T Ethernet port can be used at
a time. For details about the combo port mapping relationship, please refer to
Table 1-4.
Table 1-4 Combo port mapping relationship
Model SFP port 10/100/1000Base-T Ethernet port
GigabitEthernet1/0/25 GigabitEthernet1/0/22
GigabitEthernet1/0/26 GigabitEthernet1/0/24
GigabitEthernet1/0/27 GigabitEthernet1/0/21
Switch 4210G 24-Port
Switch 4210G NT 24-Port
Switch 4210G PWR 24-Port
GigabitEthernet1/0/28 GigabitEthernet1/0/23
GigabitEthernet1/0/49 GigabitEthernet1/0/46
GigabitEthernet1/0/50 GigabitEthernet1/0/48
GigabitEthernet1/0/51 GigabitEthernet1/0/45
Switch 4210G 48-Port
Switch 4210G NT 48-Port
Switch 4210G PWR 48-Port
GigabitEthernet1/0/52 GigabitEthernet1/0/47
The SFP port and its corresponding 10/100/1000Base-T autosensing Ethernet port cannot be used
together at the same time. For details, refer to the Ethernet Port Configuration part in the Access
Volume of the 3Com Switch 4210G Family Configuration Guide.

LEDs

Table 1-5 LEDs
LED Device support
System Status LED All series
RPS Status LED All series
Port Mode LED All series
Seven-Segment LED All series
10/100/1000Base-T Auto-Sensing
Ethernet Port Status LED
All series
1000Base-X SFP Port Status LED All series
Interface Module Status LED
Switch 4210G 24-Port, Switch 4210G 48-Port, Switch
4210G PWR 24-Port, and Switch 4210G PWR 48-Port
1-11
System Status LED
The system status LED helps you determine the working status of the switch. Refer to Table 1-6 for the
details.
Table 1-6 System status LED description
LED Status Description
Steady green The switch is started normally.
Flashing green (1 Hz) The system is performing power-on self test (POST).
Steady red POST failed.
Flashing yellow (1 Hz) POST on some ports failed.
PWR
Off The switch is powered off.
RPS Status LED
The RPS status LED helps you determine the working status of the RPS of the switch. Refer to Table
1-7 for details.
Table 1-7 RPS status LED (for Switch 4210G 24-Port, Switch 4210G 48-Port, Switch 4210G NT
24-Port, and Switch 4210G NT 48-Port)
LED Status Description
Steady green
The AC input is normal, and the RPS is in the position or
works normally.
Steady yellow
The RPS input is normal, but the AC input fails or is not
connected.
RPS
Off RPS is not connected.
Table 1-8 RPS status LED (for Switch 4210G PWR 24-Port and Switch 4210G PWR 48-Port)
LED Status Description
Steady green The RPS input is normal, and the AC input works normally.
Steady yellow
The RPS input is normal, but the AC input fails or is not
connected.
RPS
Off The RPS input is abnormal.
Port Mode LED
The port mode LED on the Switch 4210G can display the working status of a port for you to obtain more
device information. You can use the port mode switching button to change the status of the port mode
LED.
1-12
Table 1-9 Port mode LED description
LED Status Description
Steady green Indicates port rate.
Flashing green (1 Hz) (supported by
PoE switches only)
Indicates port PoE power supply.
Mode
Steady yellow Indicates port duplex mode.
Seven-Segment LED
The seven-segment LED and the system status LED together indicate the operating status of the
device. For details, refer to
Table 1-10.
Table 1-10 Seven-segment LED description (1)
Status
LED
System status
LED (PWR)
Seven-segment LED
Description
Flashing green
The LED displays the specific numbers
one by one.
POST running. The LED
displays the POST test ID.
Flashing red
The LED flashes the specific numbers.
POST failed. The LED flashes
the POST test ID of the failed
test.
Flashing green
A bar rotates clockwise around the
LED.
Software loading
Steady red
The LED flashes F.
Fan failure
Steady red
The LED flashes t.
Over-temperature alarm
The LED displays C.
The current switch is the
command switch in the cluster.
The LED displays S.
The current switch is a member
switch in the cluster.
Unit
Steady green
The LED displays c.
The current switch is a
candidate switch in the cluster.
1-13
Status
LED
System status
LED (PWR)
Seven-segment LED
Description
The LED displays the specific numbers.
The member ID of the current
switch in the IRF system.
Switch 4210G NT 24-port and
Switch 4210G NT 48-port do
not support IRF.
The seven-segment LED, the system status LED, and the port mode LED on the Switch 4210G PWR
24-port or Switch 4210G PWR 48-port that supports PoE can display the PoE power consumption
percentage of the switch. For details, refer to
Table 1-11.
Table 1-11 Seven-segment LED description (2)
LED status
LED
Port mode
LED
System
status LED
Seven-segment LED
Description
Unit
Flashing
green (1 Hz)
(PoE mode)
Steady
green
The LED displays the
specific signs.
0 - 20%
21 - 40%
41 - 60%
61 - 80%
81 - 100%
For example, when the LED
displays the
sign, it indicates
that the PoE power currently
provided by the switch occupies 0
to 20% of the total PoE power that
the switch can provide.
10/100/1000Base-T Auto-Sensing Ethernet Port Status LED
The port mode LED and the 10/100/1000Base-T auto-sensing Ethernet port status LED together
indicate the port operation status. Refer to
Table 1-12 for details.
Table 1-12 10/100/1000Base-T auto-sensing Ethernet port LEDs description
Status
Port mode
LED
Ethernet port status
LED
Description
Steady green
The port operates at a rate of 1000 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Steady yellow
The port operates at a rate of 10/100 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Flashing yellow (3 Hz) POST failed on the port.
Steady
green (rate
mode)
Off The port is not up.
1-14
Status
Port mode
LED
Ethernet port status
LED
Description
Steady green PoE power supply is normal.
Flashing green (1 Hz)
Power consumption of the device connected to the port
exceeds the upper limit of the power supply consumption of
the port, or the available power of the switch is not enough
for power supply of the port.
Steady yellow
PoE failure, and power supply failed.
The devices attached to the port are not powered devices
(PDs), so the port does not supply power.
Flashing yellow (3 Hz) POST failed on the port.
Flashing
green (1
Hz) (PoE
mode,
supported
by PoE
switches
only)
Off The port does not provide PoE power.
Steady green
The port operates in full-duplex mode; the LED is fast
flashing when data is being sent and/or received on the port.
Steady yellow
The port operates in half-duplex mode; the LED is fast
flashing when data is being sent and/or received on the port.
Flashing yellow (3 Hz) POST failed on the port.
Steady
yellow
(duplex
mode)
Off The port is not up.
1000Base-X SFP Port Status LED
The port mode LED and the SFP port status LED together indicate the SFP port operation status. Refer
to
Table 1-13 for details.
Table 1-13 SFP port status LEDs description
Status
Port mode
LED
Ethernet port
status LED
Description
Steady green
The port operates at a rate of 1000 Mbps; the LED is fast
flashing when data is being sent and/or received on the port.
Flashing yellow
(3 Hz)
POST failed on the port.
Steady green
(rate mode) or
flashing green
(1 Hz, PoE
mode)
Off The port is not up.
Steady green
The port operates in full-duplex mode; the LED is fast flashing
when data is being sent and/or received on the port.
Flashing yellow
(3 Hz)
POST failed on the port.
Steady yellow
(duplex mode)
Off The port is not up.
1-15
Interface Module Status LED
Table 1-14 Interface module status LED description
Mark Status Description
Green The interface module is in the slot and operates normally.
Flashing yellow
The inserted interface module type is incorrect or the interface
module fails.
MOD1
MOD2
Off No interface module is installed.

Optional Interface Modules

The Switch 4210G (excluding Switch 4210G NT 24-Port and Switch 4210G NT 48-Port) provide two
interface module slots on the rear panel. You can select the interface modules in
Table 1-15 as needed.
The Switch 4210G support IRF, requiring physical connections between devices. The 10 GE ports of
the supported interface modules support IRF, allowing you to connect the switches through these 10 GE
ports for IRF implementation.
Table 1-15 Description of the supported interface modules
Model Description
Interface quantity
and type
Remarks
3C17767
Short-haul Dual-Port
10 GE CX4 Interface
Module
2 × 10 Gbps electrical
ports
Suitable for short-distance
connections using CX4 power
cables, and support IRF
3C17766
Dual-Port 10 GE XFP
Interface Module
2 × 10 Gbps XFP
optical ports
3C17768
One-port 10 GE XFP
Interface Module
1 × 10 Gbps XFP
optical port
Using XFP optical transceivers
and fibers for long-distance
connections, and support IRF
LSPM2SP2P
Dual-Port 10 GE SFP+
Interface Module
2 × 10 Gbps SFP+
optical ports
Using SFP+ power cables for
short-distance connections, and
support IRF
Using SFP+ optical transceivers
and fibers for long-distance
connections, and support IRF
Short-haul Dual-Port 10 GE CX4 Interface Module
Figure 1-13 Short-haul dual-port 10 GE CX4 interface module
1-16
Figure 1-14 Front panel of short-haul dual-port 10 GE CX4 interface module
A short-haul dual-port 10 GE CX4 interface module provides two 10 Gbps electrical ports and supports
CX4 electrical and protocol standards. Only 3Com’s CX4 power cables can be used for connecting the
CX4 ports. A CX4 cable is hot swappable and its maximum transmission distance is 3 m (9.84 ft.), which
is suitable for short-distance connections only.
Table 1-16 CX4 cables supported by the short-haul dual-port 10 GE CX4 interface module
CX4 Cable Connector type Length
3C17775 0.5 m (19.69 in.)
3C17776 1 m (39.37 in.)
3C17777
4X Infiniband
3 m (118.11 in.)
Figure 1-15 CX4 cable
Dual-Port 10 GE XFP Interface Module
Figure 1-16 Dual-port 10 GE XFP interface module
Figure 1-17 Front panel of dual-port 10 GE XFP interface module
1-17
A dual-port 10 GE XFP interface module provides two 10 Gbps XFP optical ports. You can insert an XFP
transceiver into the port to connect it to another XFP port through an optical fiber. You can select the
following XFP transceivers in
Table 1-17 as required.
Table 1-17 XFP transceivers supported by 10 GE XFP interface module
Transceiver
Central
wavelength
Connector Fiber
Max
transmission
distance
50/125 µm multimode
optical fiber
300 m (984.25 ft.)
XFP-SX-MM850 850 nm
62.5/125 µm
multimode optical fiber
33 m (108.27 ft.)
XFP-LX-SM1310 1310 nm
9/125 µm single mode
optical fiber
10 km (6.21 mi.)
XFP-LH40-SM1550-F1 1550 nm
LC
9/125 µm single mode
optical fiber
40 km (24.85 mi.)
z You are recommended to use XFP transceivers of 3Com on the Switch 4210G.
z The types of XFP transceivers may vary over time. Consult 3Com marketing personnel or technical
support personnel to obtain the latest information about XFP transceivers.
One-port 10 GE XFP Interface Module
Figure 1-18 One-port 10 GE XFP interface module
Figure 1-19 Front panel of one-port 10 GE XFP interface module
This module provides one 10 Gbps XFP optical interface. You can select the following XFP transceivers
as required. A one-port 10 GE XFP interface module provides one 10 Gbps XFP optical port. You can
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