3Com 5500G SERIES is a scalable, modular Ethernet switch that provides the high-performance network connectivity and advanced traffic management capabilities required by today's business applications and services. The 5500G Series switches offer a range of models with different port densities and capabilities to meet the diverse needs of small to large enterprise networks.
All 5500G Series switches feature: Wire-speed performance on all ports to ensure that traffic is always delivered at the maximum possible speed.
Non-blocking architecture to prevent traffic congestion and ensure that all traffic is delivered without delay.
3Com 5500G SERIES is a scalable, modular Ethernet switch that provides the high-performance network connectivity and advanced traffic management capabilities required by today's business applications and services. The 5500G Series switches offer a range of models with different port densities and capabilities to meet the diverse needs of small to large enterprise networks.
All 5500G Series switches feature: Wire-speed performance on all ports to ensure that traffic is always delivered at the maximum possible speed.
Non-blocking architecture to prevent traffic congestion and ensure that all traffic is delivered without delay.
www.3Com.com
Part Number 10016377-AA
Published March 2008
3Com
®
5500G Open Services Networking
Module
Getting Started Guide
3Com Corporation
350 Campus Drive
Marlborough,
MA 01752-3064
Copyright © 2007-2008, 3Com Corporation. All rights reserved. No part of this documentation may be
reproduced in any form or by any means or used to make any derivative work (such as translation,
transformation, or adaptation) without written permission from 3Com Corporation.
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to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty, term, or condition of any kind, either
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please contact 3Com and a copy will be provided to you.
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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) or
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You agree not to remove or deface any portion of any legend provided on any licensed program or
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Contents
Introduction
Get the latest documentation and software for your 3Com OSN|M 5
About this guide 5
1 OSN|M Overview
2 OSN|M Hardware Overview
Appearance 9
Front Panel 9
Hardware Configuration 12
3 OSN|M Installation
Installing and Removing the OSN|M 15
Connecting the Management Ethernet Port Cable 17
4 Logging Into the OSN|M Linux System
Login Options 19
Logging In Through the Console Port 19
Logging In Through the OSN|M Management Ethernet Port Using SSH 20
Logging In Through the OSN|M Internal Service Interface Using SSH 21
Logging In through a Switch 5500G Command Line Interface 22
5 Understanding and Using the BIOS Options
BIOS Menu 25
Booting the Linux System 27
Installing the Linux System through an Ethernet Connection 28
Entering the Internal Shell Command Line 34
Upgrading the BIOS 34
Get the latest documentation and software for your 3Com OSN|M 5
Introduction
Get the latest
documentation and
software for your
3Com OSN|M
Thank you for purchasing the 3Com
®
OSN|M Open Services Networking
Module. As part of our commitment to help you get the most out of your
3Com network equipment, we offer updated documentation and
software on our web site.
To obtain the most up-to-date user documentation and operating
software for the 3Com OSN|M, point your web browser to:
www.3Com.com and select the “Support and Registration” link.
n
You must register your 3Com switch to receive software upgrades. To
register, point your web browser to eSupport.3Com.com.
About this guide This guide provides all the information you need to install the 3Com
®
Open Services Networking Module with your 3Com Switch 5500G. It is
intended for network administrators who are responsible for installing
and setting up network equipment; consequently, it assumes a basic
working knowledge of LANs (Local Area Networks).
Notice Icons Table 1 lists important conventions that are used throughout this guide.
Table 1 Notice Icons
Icon Notice Type Description
n
Information note Information that describes important features or
instructions
c
Caution Information that alerts you to potential loss of data or
potential damage to an application, system, or device
w
Warning Information that alerts you to potential personal injury
6 Introduction
7
1 OSN|M Overview
You can use the Open Services Networking Module (OSN|M) as an
expansion module installed in an expansion module slot on the rear panel
of a Switch 5500G. It provides a software and hardware platform that
can run various services. After an OSN|M is inserted into the expansion
module slot, it interacts with the switch through its two internal service
interfaces, which conforms to the software and hardware interface
specifications defined by OSN.
An OSN|M runs an independent Linux system. To configure and maintain
this system, you can log in using several methods.
You can develop and load service software on the OSN system to
implement security, management, and network optimizing applications
on the switch. This allows you to implement and run multiple application
types on the same device, therefore facilitating network and service
deployment and reducing overall cost.
8 Chapter 1: OSN|M Overview
Appearance 9
2 OSN|M Hardware Overview
Appearance Figure 1 displays the front view of the OSN|M.
Figure 1 OSN|M appearance
Front Panel This section describes the OSN|M’s front panel.
Front Panel View An OSN|M provides one USB 2.0 interface, one console port, and one
10/100 Base-TX management Ethernet port. Figure 2 illustrates the front
panel of an OSN|M.
Figure 2 OSN|M front panel
(1) PWR LED (2) SYS LED
(3) HDD LED (4) LED for the management Ethernet port
(5) Captive screw (6) 10/100 Base-TX management Ethernet port
(7) Console port (8) USB 2.0 interface
(5)
(1) (2)
(3)
(4)
(5)(6)(7)(8)
10 Chapter 2: OSN|M Hardware Overview
LEDs There are PWR, SYS, HDD, and management Ethernet port LEDs on the
front panel of an OSN|M. Table 1 describes the four LEDs.
Interface
Specifications
Console port
The console port on the OSN|M’s front panel conforms to the EIA/TIA-232
asynchronous serial port specifications. You can use the console port to
log into and then configure the OSN|M’s Linux system. Refer to Table 2
for the console port specifications.
Table 1 The OSN|M front panel’s LED descriptions
LED Color Status Function
PWR Green Green, solid
ON
Normal
Green,
blinking
The module is being loaded.
OFF The module is powered off.
SYS Green/Red Green, solid
ON
CPU bus is busy
Red, solid ON CPU bus fails.
OFF CPU runs normally.
HDD Green Green,
blinking
Hard disk is reading/writing.
OFF Hard disk does not perform any
operation.
LED for the
management
Ethernet port
Green/Yellow Green, solid
ON
100-Mbps connection is
established.
Green,
blinking
100-Mbps connection is
established and data is being
received/transmitted; Active
Yellow, solid
ON
10-Mbps connection is
established.
Yellow,
blinking
10-Mbps connection is
established and data is being
received/transmitted; Active
OFF No connection is established.
Table 2 Console port specifications
Specification Description
Connector type RJ45
Number of connectors 1
Front Panel 11
Management Ethernet port
You can use the 10/100Base-TX management Ethernet port on the
OSN|M’s front panel for management only; not for exchanging data. Use
this port to log into the OSN|M’s Linux system through SSH, and then to
configure the Linux system. Refer to Table 3 for the management
Ethernet port specifications.
Interface standard EIA/TIA-232
Cable type Asynchronous serial port cables
Baud rate (bps)
■ 300
■ 1200
■ 2400
■ 4800
■ 9600 (default)
■ 19200
■ 38400
■ 56000
■ 115200
Table 3 Management Ethernet port specifications
Specification Description
Connector type RJ45
Number of connectors 1
Interface standard IEEE 802.3u
Cable type Category 5 cables (forward compatible)
Working mode
■ Full/half duplex
■ 10/100 Mbps autosensing
Supported frame format
■ Ethernet_II
■ Ethernet_SNAP
Table 2 Console port specifications
Specification Description
12 Chapter 2: OSN|M Hardware Overview
USB interface
Use the USB interface on the OSN|M’s front panel to connect a storage
medium such as a USB flash disk to perform file related operations. Refer
to Table 4 for the USB interface specifications.
Hardware
Configuration
Table 5 describes the hardware components of the OSN|M.
c
CAUTION: Do not replace OSN|M hardware components yourself. Doing
so can damage the module.
Table 6 describes the hard disk’s default partitioning.
Table 4 USB interface specifications
Specification Description
Connector type USB interface
Number of connectors 1
Interface standard USB 2.0 (backward compatible)
Transmit rate
■ low-speed mode: 1.5 Mbps
■ full-speed mode: 12 Mbps
■ high-speed mode: 480 Mbps
Working mode
■ Half duplex
■ Host mode
Table 5 OSN|M hardware configuration
Specification Description
CPU Celeron M1.0G 373 processor
Memory 512 M
Hard disk 80 G
Table 6 Default partitioning of the OSN|M hard disk
Partition
name
Mount
point
Format of
file system Function
/dev/hda1 / ext3 The Linux root file system. When you
choose to boot from the hard disk using
Elilo, it uses this partition as the system’s
root file system. The volume label of this
partition is /.
Hardware Configuration 13
/dev/hda2 /alt ext3 The root file system’s backup partition. Its
leave-factory setting is null.
/dev/hda3 swap swap The Linux system’s swapping partition.
When you boot from hard disk using
Elilo, it uses this partition as the system’s
swapping partition.
/dev/hda5 /opt ext The partition provided for the users. It is
the system’s largest partition. System,
files are not saved on this partition.
/dev/hda6 vboot vfat The Linux system’s boot partition. The
boot loader Elilo can identify the vfat
partition only. The Linux kernel and
ramdisk file are stored on this partition.
Table 6 Default partitioning of the OSN|M hard disk
Partition
name
Mount
point
Format of
file system Function
14 Chapter 2: OSN|M Hardware Overview
Installing and Removing the OSN|M 15
3 OSN|M Installation
Installing and
Removing the
OSN|M
The Switch 5500G supports hot swapping the OSN|M.
c
CAUTION: If the Linux system is running on an OSN|M, use the
poweroff command to exit the system before removing the OSN|M.
Installing an OSN|M in a Switch 5500G
To install the OSN|M, perform the following steps:
1 Put on an ESD-preventive wrist strap and make sure that the
ESD-preventive wrist strap is properly grounded. Then take the OSN|M
out of the package.
2 Unscrew the mounting screws on the switch’s expansion module filler
panel and remove the filler panel.
3 Hold the two sides of the OSN|M front panel with both hands, and slide
in the OSN|M along the guide rails until the OSN|M is fully inserted into
the switch as shown in Figure 3.
4 Use a screwdriver to fasten the fastening screws on both sides of the
OSN|M.
16 Chapter 3: OSN|M Installation
Figure 3 Install an OSN|M in a switch
Removing the OSN|M
1 Put on an ESD-preventive wrist strap and ensure that the ESD-preventive
wrist strap is properly grounded.
2 Loosen the fastening screws on both sides of the OSN|M using a
screwdriver.
3 Hold the two sides of the OSN|M front panel with both hands and draw
back the module until the module is fully separated from the switch.
c
CAUTION:
■ Hold the two sides rather than the middle of the OSN|M front panel to
install or remove the OSN|M. Otherwise, the OSN|M may be out of
shape.
■ Do not apply excessive force to install or remove an OSN|M, and do
not touch the surface-mounted components directly with your hands.
■ After removing an OSN|M, if no new module is to be installed, install
the filler panel in time to prevent dust and ensure normal ventilation
in the switch.
(1) Rear panel of the switch (2) Front panel of the OSN|M
(1)
(2)
Connecting the Management Ethernet Port Cable 17
Connecting the
Management
Ethernet Port Cable
To connect the management Ethernet port cable, perform the following
steps:
c
CAUTION: When connecting the cable, pay attention to the mark on the
interface to insert it in the correct direction, otherwise, you may damage
the interface or the OSN|M.
1 Connect the management Ethernet port to a terminal.
■ If the terminal to be connected is a PC or router, use a crossover cable
to connect the management Ethernet port to an Ethernet port of the
PC or router.
■ If the terminal to be connected is a HUB or switch, use a standard
cable to connect the management Ethernet port to an Ethernet port
of the HUB or switch.
2 Power on the OSN|M and check the LED for the management Ethernet
port on the OSN|M’s front panel. ON means a link is present. OFF means
no link is present. If the LED is OFF, check the line for the cause.
18 Chapter 3: OSN|M Installation
Login Options 19
4 Logging Into the OSN|M
Linux System
Login Options You can log into the OSN|M Linux system through:
■ The OSN|M’s console port.
■ The OSN|M’s management Ethernet port using SSH.
■ The OSN|M’s internal service interface using SSH
■ A serial port redirection after you log into the switch. You can connect
to the switch’s OSN|M or to another switch’s (within the same fabric)
OSN|M to which you have logged in through a CLI.
After you connect to the OSN|M’s Linux system, you need to input the
correct username and password. The default username and password are
both root.
Logging In Through
the Console Port
In this example, a PC acts as a terminal. Connect the terminal’s serial port
to the OSN|M’s console port through the configuration cable.
1 Connect the configuration cable’s DB-9 female connector to the PC’s
serial port, and the cable’s RJ-45 connector to the OSN|M’s console port.
2 Start the PC and run a terminal emulation program such as the Windows
HyperTerminal. Select the connection mode COM and set the following
terminal parameters:
■ Bits per second: 9600
■ Data bits: 8
■ Parity: none
■ Stop bits: 1
■ Flow control: None
You can now power on the OSN|M and log into its Linux system through
the PC’s terminal emulation program.
20 Chapter 4: Logging Into the OSN|M Linux System
Logging In Through
the OSN|M
Management
Ethernet Port Using
SSH
The SSH server function is enabled on the OSN|M by default. You can use
SSH on the SSH client to log into the Linux system through the OSN|M’s
management Ethernet port performing the following steps:
1 Connect one end of the cable to the switch’s Ethernet port and the other
end to the OSN|M’s management Ethernet port.
2 Power on the OSN|M and log into the OSN|M’s Linux system by executing
the ssh2 command on the switch. The management Ethernet port’s
default IP address is 192.168.0.2/24.
Configuration
Example
# Create a VLAN interface on the switch and assign it an IP address. The
IP address is used as the SSH client address to connect the SSH server.
<sysname> system-view
[sysname] interface vlan-interface 1
[sysname-Vlan-interface1] ip address 192.168.0.56 255.255.255.0
[sysname-Vlan-interface1] quit
# Establish the SSH connection to the SSH server (OSN|M) 192.168.0.2.
[sysname]ssh2 192.168.0.2
Username:
# Enter the username and password. The default username and password
are both root.
Username: root
Trying 192.168.0.2 ...
Press CTRL+K to abort
Connected to 192.168.0.2 ...
The Server is not authenticated. Do you continue access it?(
Y/N):y
Do you want to save the server’s public key?(Y/N):y
Enter password:
Last login: Sun Jan 2 11:48:42 2005 from 192.168.0.56
[root@localhost ~]#
You have logged into the Linux system and can configure and manage
that system.
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3Com 5500G SERIES is a scalable, modular Ethernet switch that provides the high-performance network connectivity and advanced traffic management capabilities required by today's business applications and services. The 5500G Series switches offer a range of models with different port densities and capabilities to meet the diverse needs of small to large enterprise networks.
All 5500G Series switches feature: Wire-speed performance on all ports to ensure that traffic is always delivered at the maximum possible speed.
Non-blocking architecture to prevent traffic congestion and ensure that all traffic is delivered without delay.
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