Huawei V200R001 Manuale utente

HUAWEI®

6. Security Configuration

7. VPN Configuration

8. Reliability Configuration

9. QoS Configuration

10. DDR Configuration

11. VoIP Configuration

VRP

User Manual – Configuration Guide

Volume 3

V200R001

VRP

User Manual – Configuration Guide

Volume 3

Manual Version T2-080168-20011213-C-1.5

Product Version V200R001

BOM 31010868

No part of this document may be reproduced or transmitted in any form or by any

means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks

®, HUAWEI®, C&C08, EAST8000, HONET, ViewPoint, INtess, ETS, DMC, SBS,

TELLIN, InfoLink, Netkey, Quidway, SYNLOCK, Radium, , M900/M1800,

TELESIGHT, Quidview, NETENGINE, Musa, OptiX, Airbridge, Tellwin, Inmedia,

VRP, DOPRA, iTELLIN are trademarks of Huawei Technologies Co., Ltd.

Notice

The information in this document is subject to change without notice. Although

every effort has been made to make this document as accurate, complete, and

clear as possible, Huawei Technologies assumes no responsibility for any errors

that may appear in this document.

Huawei Technologies Co., Ltd.

Address: Huawei Customer Service Building, Kefa Road, Science-based

Industrial Park, Shenzhen, P. R. China

Zip code: 518057

Tel: +86-755-6540036

Fax: +86-755-6540035

Website: http://www.huawei.com

E-mail: support@huawei.com

About This Manual

Contents

To help readers to better understand, use and maintain Quidway series routers, we publish

the manual suit of Quidway series routers. This manual suit includes:

VRP User Manual Configuration Guide (V1.5) -Volume 1

VRP User Manual Configuration Guide (V1.5) -Volume 2

VRP User Manual Configuration Guide (V1.5) -Volume 3

VRP User Manual Command Reference (V1.5) -Volume 1

VRP User Manual Command Reference (V1.5) -Volume 2

VRP User Manual Command Reference (V1.5) -Volume 3

Quidway R1602 Router Installation Manual

Quidway R1603/1604 Routers Installation Manual

Quidway R2501 Router Installation Manual

Quidway R2501E Router Installation Manual

Quidway R2509/2511 Routers Installation Manual

Quidway R2509E/2511E Routers Installation Manual

Quidway R4001 Router Installation Manual

Quidway R4001E Router Installation Manual

Quidway R26/36 Modular Router Installation Manual

Among the manual suit, the first two manuals are applicable to all routers, and the other

installation manuals are separately used for their own types of routers.

In VRP User Manual Configuration Guide (V1.5) -Volume 3, the modules are arranged as

follows:

Module 6 Security Configuration (06SC)

This module mainly introduces the principle and basic specific configuration of security

features provided by VRP1.5, including AAA configuration, Radius protocol configuration,

terminal access security configuration, firewall and packet filtering configuration, IPSec

protocol configuration and IKE protocol configuration.

Module 7 VPN Configuration (07VPN)

This module mainly introduces the principle and specific configuration of VPN solutions

provided by VRP1.5, including configuration of L2TP protocol and GRE protocol.

Module 8 Reliability Configuration (08LC)

This module mainly introduces the principle and specific configuration of backup center and

HSRP protocol.

Module 9 QoS Configuration (09QC)

This module mainly introduces the principle and specific configuration of QoS service

features supported by VRP1.5, including configuration of congestion management, priority-

queue and custom-queue.

Module 10 DDR Configuration (10DC)

This module mainly introduces the principle and specific configuration of dial solutions

provided by VRP1.5, including Legacy DDR configuration, Dialer Profile configuration and

modem management configuration.

Module 11 VoIP Configuration (11VC)

This module mainly introduces the principle and specific configuration of IP voice service

features supported by VRP1.5, including configuration of VoIP, IP Fax, E1 voice, GK client

and IPHC.





Note:

For questions regarding the product specifications, please confirm with the concerned personnel in

Huawei's EnterpriseNetwork Sectionas thesoftware specificationsare variedwith theproductof different

type.

Target Readers

The manual is intended for the following readers:

Network engineers

Technical assistance engineers

Network administrators

Conventions Used in the Document

Keyboard operation

Format Description

<Key > Press the key with key name expressed with a pointed

bracket, e.g. <Enter>,<Tab>,<Backspace>,or <A >.

<Key 1 + Key 2> Press the keys concurrently; e.g. <Ctrl+Alt+A> means the

three keys should be pressed concurrently.

<Key 1, Key 2> Press the keys in turn, e.g. <Alt, A> means the two keys

should be pressed in turn.

[Menu Option] The item with a square bracket indicates the menu option,

e.g. [System] option on the main menu. The item with a

pointed bracket indicates the functional button option, e.g.

<OK> button on some interface.

[Menu 1/Menu 2/Menu 3] Multi-level menu options, e.g. [System/Option/Color setup]

on the main menu indicates [Color Setup] on the menu

option of [Option], which is on the menu option of [System].

Mouse operation

Action Description

Click Press the left button or right button quickly (left button by

default).

Double Click Press the left button twice continuously and quickly.

Drag Press and hold the left button and drag it to a certain position.

Symbol

Some distinct symbols are employed in the manual to indicate the special notice that

should be taken for the operation. The symbols are:

Caution, Notice, Warning, Danger: Notify the special attention that should be

given to the operation.

 Note, Prompt, Tip, Thought: Give further necessary supplement or explanation

for the operation description.

HUAWEI®

VRP

User Manual – Configuration Guide

Volume 3

11 – VoIP Configuration (VC)

User Manual - Configuration Guide (Volume 3)

Versatile Routing Platform Chapter 2

IP Fax Configuration

2-1

Chapter 2 IP Fax Configuration

2.1 Overview to IP Fax

Traditional faxes are sent and received over PSTN. Today fax services are widely used

due to its advantages, such as many kinds of transmissive information, fast speed for

information transmission and easy to use. Type G3 facsimile machines are frequently

used fax terminals in the current fax communications. Type G3 fax is a communication

equipment with digital signal process technology. In the process, image signal is turned

into analog signal through a modem after it is digitized and compressed, then the

analog signal is input into switch via general subscriber line.

The so-called IP Fax, just as its name implies, indicates that fax is sent and received

over Internet. Quidway series router can provide VoIP function. With the features of IP

Fax, it also can offer IP Fax functions. IP Fax can provide PSTN subscribers with

Internet fax services, thus the subscribers only need to pay for considerable cheap

expenses when sending international and domestic faxes.

The diagram of IP Fax architecture is as follows:

PSTN PSTN

Internet

Router Router

Figure VC-2-1 Architecture of IP Fax

IP realtime fax complies with ITU-T T.30 and T.4 protocols on the side of PSTN and

complies with H.323 and T.38 protocols on the side of IP. T.30 protocol is the

transmission protocol and recommendation for the document fax inthe Public Switched

Telephone Network (PSTN). It has made detailed description and rules on the

communication process, the signal format adopted in communication, control signaling

and error correction mode of category 3 facsimile over PSTN network. T.4 protocol

regulates the related standards and specifications for the file transmission through

category 3 facsimile terminals. It has made the standardization rules on image coding

mode, signal modulation mode and rate, transmission time, error correction mode as

well as file transfer mode of the category 3 facsimile terminal. T.38 protocol stipulates

the recommendations and specifications for the realtime communication through

category 3 facsimile terminals over IP network. It has made some description and rules

on the communication mode, packet format, error correction and some communication

process of the category 3 facsimile over IP network.

2.2 Configuring IP Fax

2.2.1 Task List of IP Fax Configuration

You should configure VoIP before configuring IP Fax. For the detailed procedure of

VoIP configuration, please refer to the section “Chapter 1 VoIP Configuration” in the

manual.

User Manual - Configuration Guide (Volume 3)

Versatile Routing Platform Chapter 2

IP Fax Configuration

2-2

IP telephone works after VoIP is configured. Generally speaking, faxes can now be

sent and received by using the default configuration of IP Fax only after a facsimile

machine is connected. The procedures of configuring IP Fax are mainly used to set up

the specific parameters of IP Fax or used for some specified conditions. For example,

fax operation can not be completed when the default gateway carrier transmit energy

level.

The task of IP Fax configuration is as follows:

zCheck if configuring fax to use ECM mode

zConfigure fax rate

zConfigure fax train mode

zConfigure Fax Local-train Threshold Value

zConfigure gateway carrier transmit energy level

zConfigure redundancy packet number of T38 fax protocol

zConfigure the fax protocol intercommunicating with Cisco equipment

zConfigure the intercommunication method with other equipment

All of the above configuration tasks should be carried out under the condition of dial

peer entity configuration mode.

2.2.2 Checking If Configuring Fax to Use ECM Mode

According to ITU-T Recommendation, Error Correction Mode (ECM) is necessary to

the transmission of facsimile message with the half-duplex and half-modulation system

of ITU-T V.34 protocol, at the same time the category G3# facsimile terminal operating

in full duplex mode is required to support half-duplex mode, that is to support ECM

mode.

If the facsimile adopts ECM mode, it has error correction function, and provides

automatic request for retransmission (ARQ) technology, at the same time facsimile

packet will be transmitted in the form of HDLC frame. On the contrary, if the facsimile

machine adopts non-ECM mode (the mode that facsimile must support), it has no error

correction function, and the facsimile uses binary string to transmit.

In actual configuration, if the facsimile machines on both sides support ECM mode, but

the configuration on the side of gateway is non-ECM mode, then non-ECM mode

should be adopted. If the facsimile machine on either or neither of sides does not

support ECM mode, then non-ECM mode should also be used. Only when the facsimile

machines on both sides support ECM mode and the gateway uses ECM mode, ECM

mode can be adopted.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-1 Check if configuring fax to use ECM mode

Operation Command

Configuring fax does not use ECM mode fax-relay ecm disable

Configuring fax uses ECM mode no fax-relay ecm disable

The gateway does not use ECM mode by default.

2.2.3 Configuring Fax Rate

Subscribers can configure fax rate according to the different protocols.

User Manual - Configuration Guide (Volume 3)

Versatile Routing Platform Chapter 2

IP Fax Configuration

2-3

If it is set to be the values except for “disable” and “voice”, the fax rate shall be set to be

the corresponding values. The rate set here is not specified rate but the highest

allowable rate.

When the setting is voice mode (i.e. ”voice”), the highest allowable rate of fax should

be finally determined by the differences among voice codec protocols.

zThe fax rate is 14400bps if G.711 voice encoding & decoding protocol is used

zThe fax rate is 4800bps if G.723.1 Annex A voice encoding & decoding protocol is

used.

zThe fax rate is 7200bps if G.729 voice encoding & decoding protocol is used

The fax function is disable when the setting is “disable”.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-2 Configure fax rate

Operation Command

Configure fax rate fax rate { 12000 | 14400 | 2400 | 4800 | 7200 | 9600 | disable | voice }

By default, the fax rate will be determined by voice mode.

2.2.4 Configuring Fax Train Mode

Local-train mode indicates that the gateway takes part in the rate train between the

facsimile machines on the both ends. In the mode, the facsimile machine and gateway

respectively take part in the training, then the receiving gateway sends the train results

of the receiving end to the sending gateway, finally the sending gateway will determine

the final message transmission rate according to the train results of the receiving end

and its own end.

Point-to-point train mode indicates that the gateways do not take part in the rate train

between the facsimile machines on the both ends. In the mode, the rate train processes

between the two facsimile machine terminals and is transparent to the gateways.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-3 Configure fax train mode

Operation Command

Configure fax train mode fax train-mode { local | ppp}

The mode is local-train mode (local) by default.

2.2.5 Configuring Fax Local-train Threshold Value

When the rate train is being processed between facsimile machines, the sending

facsimile machine sends TCF data of “0” to the receiving facsimile machine for 1.5

+10% seconds, then the receiving end will determine if the rate is acceptable according

to the received TCF data.

When it is configured to be local-train mode, use this command to configure the

threshold value of the local-train. When “1” appears in the received TCF data, it

indicates TCF data encountered errors during the transmission. If the number of the

User Manual - Configuration Guide (Volume 3)

Versatile Routing Platform Chapter 2

IP Fax Configuration

2-4

received “1” is less than the preset threshold value, then the current rate train is

successful, otherwise, it is not successful.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-4 Configure fax local-train threshold value

Operation Command

Configure fax local-train threshold value fax local-train threshold threshold

Restore the default value of fax local-train threshold value no fax local-train threshold

By default, the fax local-train threshold value is 10. The threshold value ranges from 0

to 100.

2.2.6 Configuring Gateway Carrier Transmit Energy Level

Generally, the default values of gateway carrier transmit energy level are acceptable. If

subscriber found fax could not established when the other configurations are correct,

you may try to adjust the gateway carrier transmit energy level. Less energy level value

shows higher energy.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-5 Configure gateway carrier transmit energy level

Operation Command

Configure gateway carrier transmit energy level fax level level

Restore the default value of gateway carrier transmit energy level no fax level

By default, the gateway carrier transmit energy level is 15. The level value ranges from

3 to 60.

2.2.7 Configuring Sending Redundancy Packet Number of T38 Fax Protocol

Low-speed data indicates the command data compliant with V.21 and the data rate is

300bps. High-speed data indicates TCF and image data.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-6 Configure sending redundancy packet number of T38 fax protocol

Operation Command

Configure redundancy packet number of low-speed data of

T38 fax protocol fax protocol t38 ls-redundancy number

Restore the default value of redundancy packet number of

low-speed data of T38 fax protocol no fax protocol t38 ls-redundancy

Configure redundancy packet number of high-speed data of

T38 fax protocol fax protocol t38 hs-redundancy number

Restore the default value of redundancy packet number of

high-speed data of T38 fax protocol no fax protocol t38 hs-redundancy

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