Huawei v200r001 Configuration of Modem Management, Modem Management Functions Provided by VRP1.4

User Manual - Configuration Guide (Volume 3)	Chapter 2
Versatile Routing Platform	Configuration of Modem Management

Chapter 2 Configuration of Modem Management

2.1 Modem Management Functions Provided by VRP1.4

Modem is a network equipment in extensive use. Satisfactory management and control of modem are important functions of router. However, as there are numerous modem manufacturers and diversified models, there may exist differences in terms of specific implementation and command details, although the standard AT command set of the industry is prevailing.

To enhance router’ flexibility as much as possible, Quidway router series provide the following Modem management functions:

1)Provide a set of script language for modem management, referred to as Modem script below, in order to better the control of the Modem connected with the router. Modem script may be executed in the following two ways:

zExecute modem script directly through chat-script command, for initialization of modem or other configurations.

zTrigger the execution of modem script through specific events (such as router startup, Modem call completed and start-chat command).

2)In the meantime, the cooperation of the script and the relevant commands can enhance router’s remote configuration function. When the asynchronous serial port works in Interactive mode, the user may establish its connection with this asynchronous serial port in dummy terminal mode or remotely through modem, and manage the router configuration.

3)The interoperability with other equipment providers (such as Cisco), is mainly shown in the fact that the asynchronous serial ports of both parties work in Interactive mode, and the two equipment are interconnected through modem.

2.2Modem Script

2.2.1 Function

Quidway router series provide Modem script, mainly functions as follows:

zModem script can be used to flexibly control modems of different models, for example, different initialization strings used can help modems of different manufacturers and models to work in harmony with the router.

zModem script can be used for interactive login of remote systems, and the interactive consulting of scripts can be used to switch into different connection status. When connection is established through modem between the asynchronous serial port of the modems of both parties, which protocol to encapsulate on the physical link and various working parameters of the protocol can be specified through consulting.

2.2.2Syntax

Common modem script format is as follows:

receive-string1 send-string1 receive-string2 send-string2

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