H3C VG 31-08 Installation Manual

H3C VG 31-08 Voice Gateway

Installation Manual

Hangzhou Huawei-3Com Technology Co., Ltd
http://www.huawei-3com.com

Manual Version: T2-08042Y-20060707-C-1.00

Copyright © 2006, Hangzhou Huawei-3Com Technology
Co., Ltd. and its licensors

All Rights Reserved

No part of this manual may be reproduced or transmitted in any form
or by any means without prior written consent of Hangzhou
Huawei-3Com Technology Co., Ltd.

Trademarks

H3C, Aolynk, , IRF, H3Care,

, Neocean, , TOP

G, SecEngine, SecPath, COMWARE, VVG, V

2

G, VnG, PSPT, NetPilot,
and XGbus are trademarks of Hangzhou Huawei-3Com Technology
Co., Ltd.

All other trademarks that may be mentioned in this manual are the
property of their respective owners.

Notice

The information in this document is subject to change without notice.
Every effort has been made in the preparation of this document to
ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of
any kind, express or implied.

To obtain the latest information, please access:
http://www.huawei-3com.com

Technical Support

[e-mail]
http://www.huawei-3com.com

About This Manual

Related Documentation

In addition to this manual, each H3C VG Series Voice Gateways

documentation set includes the following:

Manual Content

H3C VG Series Voice Gateways
Operation Manual

It provides guidelines to user
operations on the H3C VG
Series Voice Gateways.

H3C VG Series Voice Gateways
Command Manual

It provides all commands
available in the H3C VG Series
Voice Gateways as well as the
command usage and examples.

H3C VG Series Voice Gateways
Web-based Configuration
Manual

It provides guidelines to
Web-based configuration on the
H3C VG Series Voice
Gateways.

Organization

H3C VG 31-08 Voice Gateway Installation Manual is organized

as follows:

Chapter Contents

1 Product Overview

Profiles the core technology and
hardware features.

2 Installation Preparations

Focuses on the site requirements,
precautions, and tools for installation.

Chapter Contents

3 Installing the VG 31-08

Elaborates on the installation
flowchart and how to install H3C VG
31-08 Voice Gateway.

4 Booting and Configuring
the VG 31-08

Presents booting and configuration
fundamentals of H3C VG 31-08
Voice Gateway including setting up,
powering up the device, and basic
configuration procedures.

5 Software Maintenance

Lists the way to maintain the software
of H3C VG 31-08 Voice Gateway.

6 Troubleshooting

Introduces possible symptoms and
the solutions to them.

Conventions

The manual uses the following conventions:

I.

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.

Convention Description

{ 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.

# A line starting with the # sign is comments.

GUI conventions

II.

Convention Description

< >

Button names are inside angle brackets.
For example, click <OK>.

[ ]

Window names, menu items, data table
and field names are inside square
brackets. For example, pop up the [New
User] window.

/

Multi-level menus are separated by forward
slashes. For example, [File/Create/Folder].

Symbols

III.

Convention Description

Warning

Means reader be extremely careful.
Improper operation may cause bodily
injury.

Caution

Means reader be careful. Improper
operation may cause data loss or damage
to equipment.

Convention Description

 Note Means a complementary description.

Environmental Protection

This product has been designed to com ply with the requirement s
on environmental protection. For the proper storage, use and di sposal
of this product, national laws and regulations must be observed.

Installation Manual
H3C VG 31-08 Voice Gateway

Table of Contents

i

Table of Contents

Chapter 1 Product Overview ........................................................1-1

1.1 Introduction ........................................................................1-1

1.2 Hardware Features............................................................1-2

1.2.1 Appearance.............................................................1-2

1.2.2 System Specifications.............................................1-3

1.2.3 LEDs........................................................................1-4

1.2.4 Interface Attributes..................................................1-6

Chapter 2 Installation Preparations.............................................2-1

2.1 Site Requirements..............................................................2-1

2.1.1 Temperature/Humidity.............................................2-1

2.1.2 Cleanliness..............................................................2-2

2.1.3 ESD Prevention.......................................................2-3

2.1.4 Electromagnetic Environment .................................2-4

2.1.5 Lightning Protection.................................................2-4

2.1.6 Checking the Rack/Workbench/Tabletop................2-4

2.2 Safety Precautions.............................................................2-5

2.3 Tools, Cables, Meters, and Devices..................................2-6

Chapter 3 Installing the VG 31-08 ................................................3-1

3.1 Installation Flowchart.........................................................3-1

3.2 Installing the VG 31-08 ......................................................3-2

3.2.1 Tabletop/Workbench Mounting...............................3-2

3.2.2 Rack Mounting.........................................................3-2

3.3 Connecting the Grounding Cable.......................................3-3

3.4 Connecting to the Console Terminal..................................3-4

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ii

3.5 Connecting to the Ethernet................................................3-5

3.6 Connecting the Telephone.................................................3-7

3.7 Connecting the Telephone Cable......................................3-7

3.8 Connecting the Power Cord...............................................3-8

3.9 Verifying Installation...........................................................3-9

Chapter 4 Booting and Configuring the VG 31-08......................4-1

4.1 Booting...............................................................................4-1

4.1.1 Setting up a Configuration Environment .................4-1

4.1.2 Powering up the VG 31-08......................................4-5

4.1.3 Startup Process.......................................................4-7

4.2 Configuration Fundamentals..............................................4-9

4.2.1 Basic Configuration Procedures..............................4-9

4.2.2 Features of the Command Line Interface................4-9

4.2.3 Features of Web-based Configuration..................4-10

Chapter 5 Software Maintenance.................................................5-1

5.1 Boot Menu..........................................................................5-1

5.2 Upgrading Application and Boot ROM Programs Using

XModem...................................................................................5-4

5.2.1 Upgrading the Application Program........................5-4

5.2.2 Upgrading the Full Boot ROM Program..................5-7

5.2.3 Upgrading the Extended Segment of the Boot ROM

Program............................................................................5-9

5.3 Backing up and Restoring the Extended Segment of the Boot

ROM Program..........................................................................5-9

5.3.1 Backing up the Extended Segment of Boot ROM

Program in Flash Memory................................................5-9

5.3.2 Restoring the Extended Segment of Boot ROM

Program from Flash Memory..........................................5-10

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5.4 Repairing the Extended Segment of Boot ROM..............5-11

5.5 Upgrading the Application Program Using TFTP.............5-12

5.5.1 Setting up an Upgrading Environment..................5-12

5.5.2 Running TFTP Server ...........................................5-13

5.5.3 Configuring the VG 31-08......................................5-13

5.5.4 Downloading the Application Program..................5-16

5.6 Uploading/Downloading Configuration File and Program

Using FTP..............................................................................5-17

5.6.1 Setting up Uploading/Downloading Environment..5-17

5.6.2 Configuring the FTP Service on the VG 31-08......5-19

5.6.3 Uploading/Downloading Application/Boot ROM

Program/Configuration File ............................................5-20

5.7 Solutions when the Password is Lost..............................5-22

5.7.1 When a user password is lost ...............................5-22

5.7.2 When the Boot ROM Password is Lost.................5-25

Chapter 6 Troubleshooting...........................................................6-1

6.1 Troubleshooting the Power System...................................6-1

6.2 Troubleshooting the Configuration System........................6-1

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List of Figures

iv

List of Figures

Figure 1-1 Appearance of the VG 31-08.................................1-2

Figure 1-2 VG 31-08 front panel .............................................1-2

Figure 1-3 VG 31-08 rear panel..............................................1-2

Figure 1-4 LEDs on VG 31-08 front panel...............................1-5

Figure 3-1 Installation flowchart..............................................3-1

Figure 3-2 Rack mounting of the VG 31-08............................3-3

Figure 3-3 Console cable assembly........................................3-5

Figure 3-4 Ethernet cable assembly .......................................3-6

Figure 4-1 Local configuration through the console port.........4-1

Figure 4-2 Set up a new connection .......................................4-2

Figure 4-3 Set the connection port..........................................4-3

Figure 4-4 Set communication parameters.............................4-4

Figure 4-5 Set the terminal type..............................................4-5

Figure 5-1 The Send File dialog box.......................................5-6

Figure 5-2 The Sending File interface.....................................5-6

Figure 5-3 Set up an environment for upgrading through

TFTP ......................................................................5-12

Figure 5-4 Set up an environment for local uploading/downloading

through FTP..........................................................................5-18

Figure 5-5 Set up an environment for remote uploading/downloadin g

through FTP

.....................................................................5-19

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List of Tables

v

List of Tables

Table 1- 1 System Specifications..............................................1-3

Table 1- 2 LEDs........................................................................1-5

Table 1- 3 Attributes of the console port...................................1-6

Table 1- 4 Attributes of the FE interface...................................1-6

Table 1- 5 Attributes of the FXS port ........................................1-7

Table 1- 6 Attributes of the FXO port........................................1-8

Table 2-1 Temperature/Humidity requirements in the equipment

room .................................................................................2-1

Table 2-2 Requirement on dust content in the equipment

room ........................................................................2-2

Table 2-3 Limits on harmful gas contents in the equipment

room ........................................................................2-2

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Chapter 1

Product Overvie

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1-1

Chapter 1 Product Overview

1.1 Introduction

H3C VG 31-08 Voice Gateway (hereinafter referred to as VG
31-08) is a new-generation access device intended for enterprise an d
small office, home office (SOHO) users. It integrates the access of
voice, fax, and data signals over Internet protocol (IP) networks,
functioning to transform analog voice or fax signals to IP data and
forward the data.

The VG 31-08 provides abundant IP telephony features, such as
one-to-one FXS-FXO port binding, emergency function, Voice over IP
(VoIP), Fax over IP (FoIP), call control, resource management, and
maintenance management, as well as multiple coding schemes. It
also supports DHCP Client, boasting excellent price/performance
ratio.

The VG 31-08 provides eight foreign exchange station (FXS)
ports, foreign exchange of fice (FXO) port s and one Eth ernet interface.
FXS ports are used to connect analog telephone s; FXO ports are used
to connect private branch exchange s (PBXes) throu gh trunk line s; the
Ethernet interfaces are used to connect to the Internet.

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Chapter 1

Product Overvie

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1-2

1.2 Hardware Features

1.2.1 Appearance

Figure 1-1 Appearance of the VG 31-08

Figure 1-2 VG 31-08 front panel

Figure 1-3 VG 31-08 rear panel

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1.2.2 System Specifications

Table 1-1 System Specifications

Item Description

Fixed interfaces

One console port
Eight FXO ports
Eight FXS ports
One Ethernet interface

Boot ROM 512 KB

SDRAM

64 KB (default)
128 MB (maximum)

Flash memory 8 MB

Physical dimensions (H × W × D)

42 × 436 × 360 mm (1.7 ×

17.2 × 14.2 in.)

Weight 5 kg (11.0 lb)

Input voltage

Rated voltage:
100 VAC to 240 VAC, 50/60

Hz
Max. voltage:
90 VAC to 264 VAC, 47/63 Hz

Max. power consumption 35 W

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Item Description

Operating
temperature

0°C to 40°C (32°F to 104°F)

Non-operating
temperature

–40°C to +70°C (–40°F to
+158°F)

Operating relative
humidity
(noncondensing)

10% to 90%

Working
temperature

Non-operating
relative humidity
(noncondensing)

5% to 95%

 Note:

z Synchronous dynamic random access memory (SD RAM) is wh ere

the host applications are running.

z Flash memory stores programs and configuration files.

1.2.3 LEDs

The VG 31-08 has 19 LEDs in total as described in the following
figure.

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(1) PWR LED (2) Fan LED
(3) FXO LEDs (0 to 7) (4) FXS LEDs (0 to 7)
(5) Ethernet interface LED

Figure 1-4 LEDs on VG 31-08 front panel

Table 1-2 LEDs

LED Description

PWR

OFF indicates the VG 31-08 is not powered
on.

ON means the VG 31-08 is powered on.

FAN

ON indicates the fan is running normally.

OFF means the fan is not running normally.
FXO 0 to 7 ON indicates there is a call.
FXS 0 to 7 ON indicates there is a call.

Ethernet interface

OFF indicates that no LAN link is present.

ON indicates a LAN link is present.

Fast blinking indicates data is being sent

and/or transmitted on the Ethernet interface.

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1-6

1.2.4 Interface Attributes

The VG 31-08 provides one console port, one 10/100 Mbps
Ethernet interface, FXS ports and FXO ports. The following
subsections describe the attributes of these ports.

I. Console port (CON)

Table 1-3 Attributes of the console port

Attribute Description

Connector RJ-45
Number of

connectors

1

Cable Console cable
Interface standard RS232
Baud rate 9600 bps (default) to 115200 bps

Services

Connection to an ASCII terminal
Connection to a serial port on a local PC to

run terminal emulation program on the PC

II. FE interface

Table 1-4 Attributes of the FE interface

Attribute Description

Connector RJ-45
Number of

connectors

1

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Attribute Description

Cable Straight-through cable, crossover cable

Frame format

Ethernet_II
Ethernet_SNAP

Operating mode

10/100 Mbps auto-sensing
Full duplex/Half duplex auto-sensing

Network protocol IP

III. FXS port

Table 1-5 Attributes of the FXS port

Attribute Description

Connector RJ-11
Number of ports 8
Cable Telephone cable

Interface
standard

Subscriber circuit interface compliant with ITU
Q.552

Overcurrent and overvoltage protection
compliant with ITU K.20

Dial-up mode

Supports GB3378-compliant DTMF instead of
pulse dialup

Frequency 300 Hz to 3400 Hz

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IV. FXO port

Table 1-6 Attributes of the FXO port

Attribute Description

Connector RJ-11
Number of

connectors

8

Cable Telephone cable with ferrite bead

Interface
standard

Trunk interface of the loop compliant with ITU
Q.552

Overcurrent and overvoltage protection
compliant with ITU K.20

Dial-up mode

Supports GB3378-compliant DTMF instead of
pulse dialup

Bandwidth 300 Hz to 3400 Hz

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Chapter 2

Installation Preparations

2-1

Chapter 2 Installation Preparations

2.1 Site Requirements

The VG 31-08 is intended for indoor use only. To ensure normal
operation and longevity of your device, install it in an environment that
meets the requirements below.

2.1.1 Temperature/Humidity

You must keep the temperature and humidity in the equipment
room within a certain range. Long-term high humidity will lead to bad
insulation or even electricity leakage, mechanical property change,
and corrosion. However, too low relative humidity is likely to leave
captive screws loose due to contraction of insulation washers and
static electricity that threatens the CMOS circuit on the device. High
temperature accelerates aging of insulation materials and lowers
reliability and service life of your VG 31-08.

The following table lists temperature and humidity requirements
for the VG 31-08.

Table 2-1 Temperature/Humidity requirements in the equipment
room

Temperature Relative humidity

0°C to 40°C (32°F to 104°F)

10% to 90%

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2.1.2 Cleanliness

The equipment room must be free of explosive, electric, magnetic,
or corrosive dust. The contents of dust must be limited as sh own in the
following table:

Table 2-2 Requirement on dust content in the equipment room

Max. particle size

(μm)

0.5 1 3 5

Max. concentration
(number of particles
per cubic meter)

1.4×10

7

7×10

5

2.4×10

5

1.3×10

5

Besides dust, there are rigorous limit s on harmful gases that can
accelerate erosion and aging of metals, such as salts, acids, and
sulfides, as shown in the following table.

Table 2-3 Limits on harmful gas contents in the equipment room

Gas Average (mg/m3) Maximum (mg/m3)

SO

2

0.2 1.5
H2S 0 0.03
NO

2

0.04 0.15
NH

3

0.05 0.15
Cl

2

0.01 0.3

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Chapter 2

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2-3

2.1.3 ESD Prevention

Although VG 31-08 is designed to be electrostatic discharge

(ESD) preventive, it may be damaged by excessive static electricity.

Static electricity affecting the VG 31-08 and the related network
mainly comes from outdoor electric fields caused by high-pressure
power cables or thunder and lightning, as well as indoor environment,
materials and device structure. To prevent ESD damage, observe the
following:

z Ensure the unit and the floor is connected to earth ground.

z Keep the equipment room clean.

z Maintain suitable temperatu re an d humidity.

z Wear an ESD-preventive wrist strap and uniform when

handling the circuit board.

z Place the removed circuit board on an ESD-preventive

workbench or in an antistatic bag right-side up.

z Hold the removed circuit board only by its edge when

observing or moving it. Do not touch the components on it.

Warning:

There is an anti-dismantle seal on a screw on the chassis. You must
keep the seal intact before your agent maintains your VG 31-08.
Huawei-3Com is not liable for any damage or consequence resulted
from users' operation without permission.

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Chapter 2

Installation Preparations

2-4

2.1.4 Electromagnetic Environment

Any possible interference source, whether from inside or outside
the device, impacts the VG 31-08 negatively in the form of capacitive
coupling, inductive coupling, electromagnetic radiation, or
common-impedance (including the grounding system) coupling. To
resist the interference, make sure to:

z Take effective measures against the interference caused by

the electrical power grid.

z Use a grounding system or lightning protection grounding

different from that for the power supply system and keep
them as far as possible.

z Keep the device far from radio transmitting station, radar

station, and high-frequency high-current devices.

z Use electromagnetic shielding when necessary.

2.1.5 Lightning Protection

Although the VG 31-08 is designed to be lightning resistant,
excessive lightning interference can damage your device. To protect
your device against lightning,

z Ensure the chassis is connected to earth ground.

z Ensure the earth point of the power socket is well connected

to earth ground.

z Add a lightning arrester to the front end of the power in put to

better protect the power supply against lightning strikes.

2.1.6 Checking the Rack/Workbench/Tabletop

When installing the VG 31-08, make sure that:

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Installation Preparations

2-5

z There is adequate clearance around the air exhaust vents

for ventilation.

z The rack/workbench/tabletop has a good ventilation system.

z The rack/workbench/tabletop is firm enough to support the

device and its accessories.

z The rack/workbench/tabletop is well earthed.

2.2 Safety Precautions

Be sure that you observe all safety precautions when you install
your device and pay special attention to the following icons:

Warning appears in operations that, if performed

incorrectly, might cause bodily injury or equipment damage.

Caution means care must be taken in these operations

during installation and use. Incorrect operations may result in
abnormal running of the device.

Observe these safety precautions when installing and using the
VG 31-08:

z Keep the device far away from any heat source.

z Make sure that the device is connected to earth ground.

z Wear an ESD-preventive wrist strap when installing and

maintaining the device, and ensure that the strap is in good
contact with your skin.

z Do not hot-swap any cable.

z Correctly connect interface cables. Be careful not to

misconnect the telephone cable to the Ethernet interface.

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z You are recommended to use uninterrupted power supply

(UPS) for your device.

2.3 Tools, Cables, Meters, and Devices

I. Tools

z ESD-preventive wrist strap

II. Cables

z Grounding cable and power cord

z Console cable

z Ethernet cable

z Telephone cable

III. Meters and devices

z Hub or Ethernet switch

z Telephone or PBX

z Configuration terminal (or PC)

z Multimeter

Caution:

The installation tools, meters, and devices are not provided with the
VG 31-08.

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Chapter 3

Installing the VG 31-08

3-1

Chapter 3 Installing the VG 31-08

3.1 Installation Flowchart

Connect the console

terminal

End

no

yes

Connect the pow er cord

Connect telephone cables

Install the VG 31-08 at a

specified location

Connect the PGND

OK？

Connect to the E thernet

Start

Trouble

shooting

Figure 3-1 Installation flowchart

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Chapter 3

Installing the VG 31-08

3-2

3.2 Installing the VG 31-08

You can install your device in a standard 19-inch rack or on a
workbench/tabletop.

3.2.1 Tabletop/Workbench Mounting

Place the VG 31-08 on a clean and flat workbench/tabletop. To
prevent any damage, observe the following:

z Ensure the workbench/tabletop is stable enough.

z Allow 10 cm (3.9 in.) of clearance around the VG 31-08.

z Do not stack the VG 31-08 on any other equipment.

3.2.2 Rack Mounting

The VG 80-20 is designed with the following dimensions to be
mounted in a standard 19-inch rack:

H × W × D = 42 × 360 × 436 mm (1.7 × 14.2 × 17.2 in.) (without
feet)

Follow these steps to instal l the VG 80-20 (see

Figure 3-2):

Step 1: Ensure that the rack is stable enough and properly
grounded. Attach the rack-mount brackets to the front or rear of the
chassis with screws.

St ep 2: Place the VG 3 1-08 on a shelf i n the rack and slid e it to a
proper position along the guide rails.

S tep 3: Fix the rack-mount brackets to the rack post s with suitable
antirust pan-head screws. Make sure that the device is in level
position and securely fixed.

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Installing the VG 31-08

3-3

(1) Screws (4) (2) Rack-mount bracket
(3) Guide rail

Figure 3-2 Rack mounting of the VG 31-08

3.3 Connecting the Grounding Cable

Warning:

Properly connect the grounding cable before connecting other cables
and shorten the grounding cable as much as possible to protect the
VG 31-08 and the peer device against lightning stri kes.

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The AC input end of the VG 31-08 is connected to an AC noise
filter whose neutral point is connected to the chassis directly, thus
forming a protection ground (PGND). The PGND must be connected
to earth ground properly to safely channel the faradic current and
leakage current to the ground and to make the whole device less
susceptible to electromagnetic interference (EMI). The lightning high
voltage introduced from the exterior network is also channeled to the
ground through the grounding cable.

The grounding screw of PGND is located on the rear panel.
Connect this screw to earth ground using a grounding cable. The
grounding resistance sho uld not be greater than 5 ohm.

3.4 Connecting to the Console Terminal

I. Console port

The VG 31-08 provides a console port, through which you can
configure the device.

II. Console cable

The console cable is an 8-core shielded cable. At one end of the
cable is an RJ-45 connector that can be plugged to the console port of
the VG 31-08; at the other end is a DB9 (female) connector , which can
be plugged to the serial port of the console terminal.

The following figure illustrates a console cable:

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Figure 3-3 Console cable assembly

III. Connecting the Console cable

When configuring the VG 31-08 through a console terminal,
follow these steps to connect the console cable:

St ep 1: Select a console terminal.

The console terminal can be either a standard ASCII terminal
with an RS232 serial port or more commonly, a PC.

S t ep 2: Connect the cable.

Power down the console terminal, and then connect the RS232
serial port on the console terminal to the co nsole port on the VG 31-08
through the console cable.

3.5 Connecting to the Ethernet

I. Ethernet cable

For a 100BASE-TX Ethernet interface, you can use a category-5
twisted pair cable, as shown in the following figure:

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Figure 3-4 Ethernet cable assembly

Ethernet cables fall into two types: straight-through (standard)
and crossover. Use a crossover cable if you are connecting the voice
gateway to a PC or router; use a straight-through cable if you are
connecting the device to a Hub or an Ethernet switch.

 Note:

When preparing network cables, use shielded cables preferentially for
the sake of electromagnetic compatibility.

II. Connecting the Ethernet cable

Caution:

Read the mark above the interface carefully to avoid misconnection.

Follow these steps to connect the Ethernet cable:

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3-7

Step 1: Insert one end of the Ethernet cable to the Ethernet port
of the VG 31-08 and connect the other end to a hub, an Ethernet
switch, or a router.

Step 2: Check that the LINK LED on the front panel is ON. ON
means the network cable is correctly connected.

3.6 Connecting the Telephone

The VG 31-08 can connect dual-tone multi-frequency (DTMF)
phones through its eight telephone port s. You may simply connect the
FXS ports of the VG 31-08 with the telephone through the telephone
cable.

 Note:

You are recommended to set the telephone to DTMF mode, as the VG
31-08 does not support pulse dialing; otherwise, you cannot place
calls with the telephone.

3.7 Connecting the Telephone Cable

The cables used for connecting FXO ports are telephone cables
with ferrite bead and RJ-11 connectors at both ends. You can simply
connect the VG 31-08 to a PBX through the telephone cable.

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3.8 Connecting the Power Cord

I. AC-input power supply

The VG 31-08 uses a built-in power supply with these
specifications:

Rated voltage: 100-240 VAC; 50/60 Hz

Max. voltage: 90-264 VAC; 47/63 Hz

II. Recommended power socket

You are recommended to use a 3-core single-phase power
socket with neutral point. The neutral point of the socket must be
grounded reliably. Normally, the neutral point of the power supply
system in a building was buried in the ground during const ruction and
cabling. Before you connect the AC power cord, make sure that the
power supply system in the building has been well grounded.

III. Connecting the AC-input power cord

S tep 1: Connect one end of the power cord to the AC-input socket
on the VG 31-08 and the other end to the AC power outlet.

Step 2: Power up the VG 31-08.

S tep 4: Check that the PWR LED on the front panel is ON, which
means the power connection is correct.

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Caution:

Normally, the startup information is displayed on the terminal sc reen
after you power on the VG 31-08. For more information, refer to
section

4.1.3 “Startup Process”.

3.9 Verifying Installation

Each time before you power up the VG 31-08 during installation,
verify that:

z Enough clearance has been reserved around the VG 31-08

for ventilation, and the tabletop/workbench is stabl e enough.

z Proper power supply is used.

z The grounding cable has been correctly connected.

z The VG 31-08 has been correctly connected to other

devices, such as a console terminal.

Caution:

Installation verification is extremely important, because operations of
the VG 31-08 depend on its stability, grounding, and power supply.

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Chapter 4 Booting and Configuring the

VG 31-08

4.1 Booting

4.1.1 Setting up a Configuration Environment

I. Connecting the VG 31-08 to a console terminal

As shown in

Figure 4-1, connect the RJ-45 connector of the
console cable to the console port on the VG 31-08, and the DB9
connector to the serial port on the PC.

Figure 4-1 Local configuration through the console port

II. Setting terminal parameters

Step 1: Start the PC and select

[Start/Programs/Accessories/Communications/HyperTerminal].

Step 2: The HyperTerminal window displays the Connection

Description dialog box, as shown in

Figure 4-2.

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4-2

Figure 4-2 Set up a new connection

Step 2: Enter the name of the new connection in the Name field

and click <OK>. The dialog box, as sho wn in

Figure 4-3, displays.

Step 4: Select the serial port to be used from the Connect Using
dropdown menu. The serial port must be the same port connected by
the console cable.

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4-3

Figure 4-3 Set the connection port

Step 5: Click <OK>. The Port Settings tab, shown in

Figure 4-4,
appears and you can set the serial port parameters. Set the following
parameters:

z Bits per second = 9600
z Data bits = 8
z Parity = None
z S t op bits = 1
z Flow control = None

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4-4

Figure 4-4 Set communication parameters

St ep 6: Click <OK>. The HyperTerminal dialog box appears.
St ep 7: Select Properties.
St ep 8: In the H3C Properties dialog box, select the Settings ta b,

as shown in

Figure 4-5.

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4-5

Figure 4-5 Set the terminal type

Step 9: Select VT100 or Auto detect in the Emulation dropdown

menu.

St ep 10: Click <OK>.

4.1.2 Powering up the VG 31-08

I. Checking before power-up

Before powering up the VG 31-08, verify that:

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z Both the power cord and the grounding cable are correctly

connected.

z Proper power supply is used.
z The console cable is correctly connected. The console

terminal (or PC) has been started and the related
parameters have been set on it.

Warning:

Locate the power switch in the room before powerin g up the VG 31-08.
Then, if an accident occurs, you can quickly shut off the power.

II. Powering up the VG 31-08

Power up the VG 31-08.

III. Checking/operating after power-up

After powering up the VG 31-08, check to ensure that:

z The LEDs on the VG 31-08 front panel are in normal state.
z The console terminal display is correct.

After powering up the device, you can see the startup interface on

the console terminal (refer to section

4.1.3 “Startup Process”). After
the system passes power-on self-test (POST), press <Enter> as
prompted. When the command line prompt “[VG]” is displayed, you
can proceed to configure the VG 31-08.

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4.1.3 Startup Process

I. Booting

After being powered up, the VG 31-08 first runs the Boot ROM
program. The following system information will be displayed on the
terminal screen.

 Note:

The contents displayed on the terminal could vary with different Boot
ROM versions.

***********************************************

* *

* H3C Voice Gateway Bootrom, Version 1.04 *

* *

***********************************************

Copyright(c) 2004-2006 Hangzhou Huawei-3Com Tech. Co.,

Ltd.

Creation date : Jan 7 2006, 11:59:55.

Testing memory...OK!

64M bytes SDRAM

8192k bytes Flash Memory

Hardware Version is MTR 2.0

CPLD Version is CPLD 1.0

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Bootrom Version is 1.04

Press Ctrl-B to enter Boot Menu

Press <Ctrl+B> right away to enter the boot menu. Otherwi se, the
system starts decompressi ng the soft wa re.

 Note:

After “H3C Voice Gateway Boot ROM, V1.04” appears, “Voice
Gateway starts booting ... ” disappears immediately.
To enter the boot menu, you should press <Ctrl+B> within eight
seconds after the prompt “Press Ctrl-B to Enter Boot Menu…”
appears.

II. System decompression and initialization

The system displays:

Press ENTER key to get started when you see ATS0=1.

System is starting...ATS0=1

Press <Enter>, and the system displays:

[VG]

This prompt means that the VG 31-08 enters system view and is
ready for configuration.

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4.2 Configuration Fundamentals

4.2.1 Basic Configuration Procedures

Following are the basic steps that you can follow to co nfigure you
VG 31-08.

St ep 1: Figure out networking requirements.

Step 2: Draw a networking topology based on the requirements.

Step 3: Configure voice parameters according to the
requirements.

St ep 4: Configure routes and other features.

For more information on the configuration related to protocols
and functions for the VG 31-08, refer to H3C VG Series Voice
Gateways Operation Manual.

4.2.2 Features of the Command Line Interface

The VG series voice gateways provide the command line
interface (CLI), which allows you to implement hierarchical protections
against unauthorized users. In system view, all the commands are put
into different groups for the convenien ce of management, each group
being associated to a view. You can switch between the views by
executing particular commands. In normal circumstances, you can
only execute the commands appropriate to the view that you access.
However, you are allowed to execute in any view some common
commands, such as ping, display, and interface. The CLI offers a
series of configuration commands for you to configure and manage
your voice gateway. It allows you to:

z Configure the device locally through the console port.

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z Telnet to configure the voice gateway locally or remotely,

and then telnet to access and manage other devices.

z Assign different users with different levels (guest, operator,

and administrator) to prevent unauthorized users. Only
administrator users are allowed to configure and manage
the voice gateway.

z Get on-line help whenever you enter ?.

z Refer to the prompts and help information presented in

English.

z Test network connectivity quickly with network diagnostic

tools, such as tracert and ping.

z Have detailed debugging information to troubleshoot your

network.

z Enter the non-conflicting keyword instead of the whole

command for searching, because the CLI supports
command prompting. For example, you can simply ent er dis
to search for the display command.

4.2.3 Features of Web-based Configuration

VG series voice gateways provide Web-based configuration,
which is more direct and more convenient to use for primary or
common users, compared to command lines configuration.
Web-based configuration supports:

z Parameters settings for basic system functions, like

Ethernet interface, static routing, and so on.

z Parameter settings for basic voice features.

z User login authentication for security.

z Telnet link on the Web-based configuration page, so that

users can access the device through Telnet.

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z Bilingual display in English and Chinese.

For details, refer to H3C VG Series Voice Gateways Web-based
Configuration Manual

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Software Maintenance

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Chapter 5 Software Maintenance

The VG 31-08 maintains three types of files:

z Boot ROM program files

z Application files

z Configuration files

Software maintenance of the VG 31-08 mainly involves
upgrading/downloading Boot ROM and application program files, as
well as uploading/downloading configuration files.

5.1 Boot Menu

This section introduces the boot menu that you use when
maintaining the software of the VG 31-08.

Set up a configuration environment (see

Figure 4-1) and then

boot the VG 31-08. The console terminal displays:

***********************************************

* *

* H3C Voice Gateway Bootrom, Version 1.04 *

* *

***********************************************

Copyright(c) 2004-2006 Hangzhou Huawei-3Com Tech. Co.,

Ltd.

Creation date : Jan 7 2006, 11:59:55.

Testing memory...OK!

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64M bytes SDRAM

8192k bytes Flash Memory

Hardware Version is MTR 2.0

CPLD Version is CPLD 1.0

Bootrom Version is 1.04

Press Ctrl-B to enter Boot Menu

Press <Ctrl+B>, and the system prompts:

Please input Bootrom password :

Caution:

z Press <Ctrl+B> within eight seconds to access the boot menu after

the prompt “Press Ctrl-B to Enter Boot Menu...” appears.
Otherwise, the system starts decompressing the software.

z To access the boot menu after the system starts decompressing

the program, you need to reboot the device.

Input the correct password and press <Enter>. (If no Boot ROM
password has been set, just pre ss <Enter>.) The system accesses the
boot menu shown as follows:

Boot Menu:

1: Download application program with XMODEM

2: Download application program with NET

3: Clear configuration

4: Start up and ignore configuration

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5: Bootrom Operation Menu

6: Do not check the version of the software

7: Exit and reboot

Enter your choice(1-7):

Options in the boot menu are described as follows:

1: Download the application program with XModem. Refer to
section

5.2 “Upgrading Application and Boot ROM Programs Using

XModem

” for details.
2: Download the application program through the Ethernet.
3: Clear the configuration files.
4: Ignore the configuration file and start up with the initial

configurations.

5: Enter the Boot ROM submenu.
6: Do not check the software version of the extended segment of

Boot ROM (this option is provided for backward compatibility in
version upgrade).

7: Exit the boot menu and reboot the VG 31-08.
The following sections describe the two software upgrading

methods provided in the boot menu and the operations in the Boot
ROM submenu.

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Caution:

You are recommended to upgrade the software under the guidance of
technical support engineers. In addition, when upgrading the VG
31-08, make sure the version of the Boot ROM software is consistent
with that of the application software.

5.2 Upgrading Application and Boot ROM
Programs Using XModem

You can use the console port to upgrade the software through

XModem without the need of setting up a configuration environment..

5.2.1 Upgrading the Application Program

Step 1: Enter the boot Menu (refer to section 5.1 “Boot Menu”)

and enter 1 to download an application program through XModem.
The VG 31-08 supports the following downloading rates:

Please choose your download speed:
1: 9600 bps
2: 19200 bps
3: 38400 bps
4: 57600 bps
5: 115200 bps
6: Exit to Main Menu
Enter your choice(1-6):

Step 2: Select an appropriate downloading rate, (for example,

115200 bp s by entering 5). The system d i splays:

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Download speed is 115200 bps. Change the termin,and select
XMODEM protocol. Press <Enter> key when ready.

Step 3: Change your terminal’s baud rate (see Figure 4-4) to the

same baud rate for software downloading (115200 bps in this
example). After that, disconnect the terminal ([Dial-in/Disconnect]),
reconnect it ([Dial-in/Dialing]), and press <Enter> to st art downl oading.
The system displays:

Now Downloading Program File.
Please Start Transfer Program File And Use Xmodem Protocol.
If You Want To Exit. Press <Ctrl+X>.
Downloading ... CCCCC

 Note:

The new baud rate takes effect only after you disconnect and
reconnect the terminal emulation program.

Step 4: Select [Transmit/Send file] in the terminal window. The

following dialog box pops up:

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Figure 5-1 The Send File dialog box

Step 5: Click <Browse>, select the application file to be

downloaded, set the protocol to XModem, and click <Send>. The
following interface pops up:

Figure 5-2 The Sending File interface

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Step 6: After completing the downloading, the system begins

writing data to the Flash memory and then displays the following
information in the terminal interface, indicating the completion of the
downloading:

Download completed.
Writing to flash memory...
Please wait,it needs a long time .Please wait...
#######################################################
Writing into Flash Succeeds..

Please use 9600 bps.Press <ENTER> key to reboot the
system.

Restore the speed of the console terminal to 9600 bps as

prompted, disconnect and reconnect the terminal. The system starts
up normally.

5.2.2 Upgrading the Full Boot ROM Program

The Boot ROM program includes a basic segment and extended

segment. The full Boot ROM upgrade program provided for the user
includes both segments, while the extended segment upgrading
program only includes the extended segment of the Boot ROM
program. If an error occurs during the upgrade of the full Boot ROM
program, the system may fail to start after the upgrade, and special
equipment must be used to repair the system. However, if an error
occurs during the upgrade of the extended segment, you can repair
the system through some simple methods. Therefore, try to avoid
upgrading the full Boot ROM program if an upgrade of the extended
segment suffices.

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Step 1: Enter the boot menu (refer to section 5.1 “Boot Menu”),

and enter 5 to enter the Boot ROM submenu.

Bootrom Download Menu:
1: Download Bootrom with XModem
2: Download Extended Segment of Bootrom with XModem
3: Restore Extended Segment of Bootrom from FLASH
4: Backup Extended Segment of Bootrom to FLASH
5: Exit to Main Menu
Enter your choice(1-5):

Step 2: Enter 1 to download the Boot ROM program through

XModem. The VG 31-08 provides several speed options. The
subsequent operation steps are the same as those described in
section

5.2.1 “Upgrading the Application Program”.

Caution:

You cannot restore the Boot ROM program on site if you fail to
upgrade the full Boot ROM program. Therefore, you are
recommended not to upgrade the full Boot ROM program unless
necessary and under the direction of technical support engineers.

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5.2.3 Upgrading the Extended Segment of the Boot
ROM Program

Step 1: Enter the boot menu (refer to section 5.1 "Boot Menu”),

and enter 5 to enter the Boot ROM submenu, as shown in section

5.2.2 “Upgrading the Full Boot ROM Program”.
Step 2: Enter 2 in the Boot ROM submenu to upgrade the

extended segment of Boot ROM program through XModem. The VG
31-08 provides several rate options. The subsequent operation steps
are the same as those described in section

5.2.1 “Upgrading the

Application Program

”.

 Note:

This upgrade approach is only used to upgrade a portion of the Boot
ROM program, so you may make a second attempt once an error
occurs.

5.3 Backing up and Restoring the Extended

Segment of the Boot ROM Program

5.3.1 Backing up the Extended Segment of Boot ROM

Program in Flash Memory

Follow these steps to back up the Boot ROM program.
Step 1: Enter the boot menu (refer to section

5.1 “Boot Menu”),

and enter 5 to enter the Boot ROM submenu.

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Step 2: Enter 4 in the Boot ROM submenu to copy the current

extended segment of the Boot ROM program to Flash memory.

If the backup attempt is successful, the following message

appears:

Please wait, it may take a long time####
Backuping Bootrom program to FLASH successed!

Step 3: When the Boot ROM submenu appears again, enter 5 to

exit and reboot the VG 31-08.

5.3.2 Restoring the Extended Segment of Boot ROM

Program from Flash Memory

If faults occur to the extended segment of the Boot ROM program

or you upgrade it wrongly, you can restore the extended segment
saved in the Flash memory to the Boot ROM by following these steps:

Step 1: Enter the boot menu (refer to section

5.1 “Boot Menu”),

and enter 5 to enter the Boot ROM submenu.

Step 2: Enter 3 in the Boot ROM submenu to restore the

extended segment of the Boot ROM program from the Flash memory.

If the operation is successful, the system displays:

Please wait, it may take a long time######
Restoring Bootrom program successed!

Step 3: When the Boot ROM submenu appears again, enter 5 to

exit and reboot the VG 31-08.

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5.4 Repairing the Extended Segment of Boot

ROM

If an error has occurred during the upgrade of the Boot ROM

extended segment, and you are not able to enter the related menus by
pressing <N> or <Ctrl+B> when the system boots, you can press
<Ctrl+D> to enter the Boot ROM menu and reload the Boot ROM
extended segment program or restore the p rogram p reviously backed
up.

Follow these steps:
St ep 1: Press < Ctrl+D> to enter the Boot ROM menu.
When the VG system boots, the system prompts “Voice Gateway

starts booting ...”. If you press <Ctrl+D> at this moment, the system
will display:

Please input Bootrom password :

Input the correct password and then press <Enter> (If no Boot

ROM password has been set, directly press <E nter>). The system will
display the boot menu, as follows:

Boot Menu:
1: Download Extended Segment of Bootrom with XModem
2: Modify Bootrom password
3: System booting from Flash
4: Do not check the version of Extended Segment of Bootrom
5: Exit and reboot
Enter your choice(1-5):

Options of the boot menu are described below:
1: Download the extended segment of Boot ROM with XModem;

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2: Modify the Boot ROM password;
3: Load the Boot ROM program previously backed up to the Flash

memory;

4: Do not check the version of the extended segment of Boot

ROM (this option is provided for backward compatibility in version
upgrade);

5: Exist the boot menu and reboot the VG 31-08.
St ep 2: Enter 1 to reload the extended segment of Boot ROM, or

enter 3 to boot from the Boot ROM backed up to the Flash memory.

5.5 Upgrading the Application Program Using

TFTP

The VG 31-08 supports ap plication program upg rade using TFTP.

The steps of application program upgrade using TFTP are as follows:

5.5.1 Setting up an Upgrading Environment

Consoleport

Cons ole port c able

RS232 s e rial port

PC

Ethernet int erf ace

10.110.10.10

10.110.10.13

VG 31-08

TF TP S e rv

er

Crossover cable

Figure 5-3 Set up an environment for upgrading through TFTP

St ep 1: Connect the Ethernet interface to a PC using a crossove r

cable.

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Step 2: Connect the console port of the VG 31-08 to an external

console terminal (it can be an external PC connected to the Ethernet
interface), and configure HyperTerminal with reference to section

4.1.1 II. “Setting terminal parameters”.
St ep 3: Install the TFTP Server on the PC.

 Note:

The VG 31-08 does not provide the TFTP Server program, and you
should purchase and install it by yourself.

Step 4: Copy the new application file to a directory, “C:\H3C” for

example.

Step 5: Configure the IP address for the fast Ethernet (FE)

interface on the PC, 10.110.10.13 for example.

5.5.2 Running TFTP Server

St ep 1: Run the TFTP Server on the PC.
St ep 2: Specify a directory for the new application program.

5.5.3 Configuring the VG 31-08

Step 1: Boot the VG 31-08 and press <N> upon appearance of

the message “Voice Gateway starts booting ... ”. The system displays
the following message:

(M)odify any of Voice Gateway configuration or (C)ontinue?
[M]

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Press <Enter>. The following message appears:

For each of the following questions, you can press <Return>
to select the value shown in braces, or you can Enter a new
value.

 Note:

For the displayed messages that ask for your interaction, you can
press <Enter> to adopt the default value in the brackets ([]), or input
the desired value.

St ep 2: Configure TFTP parameters.

NETWORK INTERFACE PARAMETERS:

Configure the network interface parameters for the VG 31-08,

including the port to be used, its IP address and the subnet mask.

Do you want a LAN interface? [N] y
This board's LAN IP address? [169.254.10.10]10.110.10.10
Subnet mask for LAN (0 for none)? [255.255.0.0]
TFTP SERVER PARAMETERS:

Configure the TFTP Server parameters, including the IP address

of the Ethernet interface on the PC, the filename of the application
program, and CPU delay.

IP address of the TFTP server?
[169.254.75.166]10.110.10.13
What is the name of the file to be loaded and started?
[VG20X.BIN]

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How long (in seconds) should CPU delay before starting up?
[5]

Caution:

z The IP address in “IP address of the TFTP server ?

[10.110.10.13]

” must be the IP address of the PC connected to

the FE port of the VG.

z The IP address and subnet mask set in “This board's LAN IP

address(0.0.0.0 = RARP)? [10.110.10.10], Subnet mask for LAN
(0 for none)? [255.255.0.0]

” must be the IP address and subnet

mask of LAN0.

z The IP addresses of the PC network interface and the LAN port of

the VG 31-08 must reside in the same network segment.

St ep 3: Confirm parameter settings.
After you enter the last parameter, the system displays the

following information and requests you to confirm the parameter
settings:

------------------------------------------------------­NETWORK INTERFACE PARAMETERS:
IP address on LAN is 10.110.10.10
LAN interface's subnet mask is 0xffffff00
HARDWARE PARAMETERS:
Processor type is MPC852T
Internal Clock Rate 100 Mhz

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External Clock Rate 50 Mhz
Serial channels will use a baud rate of 9600
TFTP SERVER PARAMETERS:
IP address of the TFTP host is 10.110.10.13
The file to download and start is VG20X.BIN
After board is reset, start-up code will wait 5 seconds

------------------------------------------------------­(M)odify any of this or (C)ontinue? [M]

Press <C> to confirm the configurations.

5.5.4 Downloading the Application Program

St ep 1: Boot the system and enter the boot menu.
Step 2: Enter 2 in the boot menu to download the application

program using TFTP. The following message appears:

Download application program, are you sure?[Y/N]Y

If the PC running the TFTP Server is ready, press <Y> to

download the program.

Starting the TFTP download...

.......................................................

..........................................

After the downloading is completed, the system displ ays:

TFTP download completed...
read len = [06031367]

Writing into Flash Succeeds.

Please wait, it may take a long time...

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#######################################################
Writing FLASH Success.

Press <Enter> key to exit to Main Menu .

Press <Enter> to reboot the system.

5.6 Uploading/Downloading Configuration

File and Program Using FTP

The VG 31-08 can act as an FTP server, providing another way

for users to update the configuration file and upgrade the application
and Boot ROM program. Any FTP client (local or remo te) connected to
the VG 31-08 can update configuration files or upgrade
application/Boot ROM program using FTP. After passing the
authentication, you can update the configuration file or upgrade the
application/Boot ROM program, as described below.

 Note:

z Uploading is to transfer files from an FTP client to the VG, that is,

the “put” operation.

z Downloading is to transfer files from the VG to an FTP client, that is,

the “get” operation.

5.6.1 Setting up Uploading/Downloading

Environment

z Setting up an environment for local uploading/downloading

through FTP

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Figure 5-4 Set up an environment for local

uploading/dow

nloading through FTP

St ep 1: Connect the VG 31-08 to a PC with an Ethernet cable.
Step 2: Assign an IP address, 10.110.10.13 for example, to the

FE interface on the VG 31-08.

Step 3: Assign an IP address, 10.110.10.10 for example, to the

Ethernet interface on the PC.

Step 4: Copy the application/Boot ROM program/configuration

file to the destination directory, “C:\version” for example.

Caution:

The IP addresses assigned to the interfaces on the PC and the VG
31-08 must reside on the same network segment.

z Setting up an environment for remote

uploading/downloading through FTP

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Figure 5-5 Set up an environment for remot

uploading/downloading through FTP

e

Step 1: Connect the PC and the VG 31-08 to the Internet

respectively, and make sure that the PC and the VG are accessible to
each other.

Step 2: Copy the application/Boot ROM program/configuration

file to the destination directory, “C:\version” for example.

5.6.2 Configuring the FTP Service on the VG 31-08

St ep 1: Set an authentication method.

 Note:

You can make AAA configurations as needed. For information about
related operations, refer to H3C VG Series Voice Gateways
Operation Manual.

Step 2: Add a username and its password.

[VG] local-user H3C password simple 123 service-type ftp

“H3C” is the username and “123” is the pa ssword.

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St ep 3: Start the FTP server.

[VG] ftp-server enable

After the FTP server is enabled and the user is added on the VG

31-08, any FTP client can log onto the FTP server with the username
and password.

5.6.3 Uploading/Downloading Application/Boot ROM

Program/Configuration File

Step 1: Change to the directory containing the application/Boot

ROM program/configuration file in the MS-DOS command prompt
window. Carry out the ftp command to set up an FTP connection with
the VG 31-08. For example:

C:\version>ftp 10.110.10.13

If the connection is successfully set up, the following information

appears (taking Windows 98 for example):

Connected to 10.110.10.13
220 FTP server ready on Voice Gateway at
User(10.110.10.13:(none)):

Step 2: Log on to the FTP server using the username and

password set on the VG 31-08.

User(10.110.10.13:(none)): H3C Input the user

name

331 Password required for ftp

Password: Input the password (the password is

not echoed on the screen)

230 User H3C logged in
ftp>

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When the “ftp>” prompt appears, you can proceed with the

uploading/downloading.

Step 3: Upload/download the application/Boot ROM

program/configuration file.

 Note:

On the VG 31-08, the default file names are as follows:

z Application program: system
z Configuration file: config
z Extended segment of the Boot ROM program: bootrom
z Full Boot ROM program: bootromfull

z Upload the application/Boot ROM program/configuration file

ftp> put Input put to perform uploading.
local file Input the name of the application/Boot ROM

program/configuration file to be uploaded.

remote file Input the name used to save the

application/Boot ROM program/configuration file to be uploaded
on the VG.

Upon the completion of the uploading, the “ftp>” prompt appears

again. Enter dir to view the names and sizes of the uploaded files on
the VG 31-08. The configuration file has the same size as that of the
original file on the host if the uploading is successful.

z Download the application/Boot ROM program/configuration

file

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ftp> get Input get to perform downloading.
remote file Input the name of the application/Boot ROM

program/configuration file on the VG.

local file Input the name used to save the application

program/Boot ROM program/configuration file locally.
St ep 4: Upon completion of uploading/downloading, quit the FTP

client program.

ftp>quit Enter quit to terminate the ftp connection.

5.7 Solutions when the Password is Lost

If you have lost the VG 31-08 Boot ROM password or a user

password, use one of the following methods:

5.7.1 When a user password is lost

I. Clearing system configuration

Step 1: Enter the boot menu and enter 3 to clear the system

configuration.

The system displays:

Clear config, are you sure?[Y/N]y

Press <Y>. The system displays the following message to

indicate the system configuration has been erased:

Erasing...Success!

Step 2: When the boot menu appears again, enter 7 to from the

boot menu.

The system displays:

Exit and reboot, are you sure?[Y/N]y

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Press <Y>. The system displays:

System is rebooting now...

Step 3: Configure a new user password in system view after the

VG reboots.

[VG] local-user h3c password simple 123 service-type
administrator

“h3c” is the username, “123” is the new user password, and

“administrator” means that it is a super user password.

St ep 4: Save the new configurations.

[VG] save

 Note:

It is required to carry out the save command to save the new
password.

II. Starting up while ignoring configurations

St ep 1: Enter the boot menu and enter 4 to start the system whil e

ignoring configurations.

The system displays:

Boot Menu:
1: Download application program with XMODEM
2: Download application program with NET
3: Clear configuration
4: Start up and ignore configuration

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5: Bootrom Operation Menu
6: Do not check the version of the software
7: Exit and reboot
Enter your choice(1-7): 4

Start up and ignore configuration, are you sure?[Y/N]y

Press <Y>. The system displays the following message to

indicate the current system configurations has been saved:

Saving...Success!
Boot Menu:
1: Download application program with XMODEM
2: Download application program with NET
3: Clear configuration
4: Start up and ignore configuration
5: Bootrom Operation Menu
6: Do not check the version of the software
7: Exit and reboot
Enter your choice(1-7): 7

Step 2: When the boot menu appears again, enter 7 to exit the

boot menu.

The system displays:

Exit and reboot, are you sure?[Y/N]y

Press <Y>. The system displays:

System is rebooting now...

Step 3: Configure a new user password in system view after the

VG 31-08 reboots.

[VG] local-user h3c password simple 123 service-type

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administrator

“h3c” is the username, “123” is the new user password, and

“administrator” means that it is a super user password.

 Note:

After being rebooted, the system starts with the default configurations,
but the last configuration file is still saved in the Flash memory. To
restore the last configurations, you can use the display
saved-configuration command to display the configurations, and
then copy and apply them.

St ep 4: Save the new configurations.

[VG] save

 Note:

It is required to execute the save command to save the new
password.

5.7.2 When the Boot ROM Password is Lost

Contact your agent if you have lost the Boot ROM password, so

that support engineers will help you access the VG 31-08 to set a new
password.

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Troubleshooting

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Chapter 6 Troubleshooting

6.1 Troubleshooting the Power System

1) Symptom:
The PWR LED is OFF.

2) Solution:
Check to make sure that:

z The power switch on the VG 31-08 is turned on.
z The power cord is connected correctly.
z Correct mains supply is used.

Caution:

Do not hot-swap the power cord. Contact your agent if the PWR LED
is still OFF after the above items are confirmed.

6.2 Troubleshooting the Configuration

System

If the system operates normally after being powered up, it

displays the start-up information on the console terminal. If the
configuration system has failed, it displays illegible characters or
nothing at all.

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I. No information on the terminal

1) Symptom:
The powered-up VG 31-08 displays nothing on the console

terminal.

2) Solution:
Step 1: Check whether the power system is operating normally

and the console cable is connected correctly.

Step 2: If you cannot locate the problem yet, check the console

cable and the terminal (e.g., HyperTerminal) parameter settings.

II. Illegible characters on the terminal

1) Symptom:
The powered-up VG 31-08 displays illegible characters on the

console terminal.

2) Solution:
Make sure you have set the following parameters on your

terminal (HyperTerminal):

z Baud rate = 9600
z Data bits = 8
z Parity = none
z S t op bits = 1
z Flow control = none
z Terminal emulation = VT100 or Auto detect

Reconfigure the parameters if their values are different.