Ericsson EDN312 Guia do Utilizador descarregar pdf (Página 22)

Function Description

4/1553-HSC 901 101/2 Uen B 2009-02-27

3. The IP DSLAM will download the application SW file and store it in

Flash. The IP DSLAM uses a TFTP or FTP client to download the

application SW.

Note: If the application SW file to be loaded matches the file already

stored in flash, the file is not loaded. Instead, the flash copy is

used. See also section 3.2.3.4 on page 20.

The application SW is executed, and the configuration file is

downloaded and stored in Flash ready to be used.

A TFTP client is used to download the configuration file from the

Domain File Server. The IP DSLAM is now in normal operation.

IP DSLAM Starts (Power up)

Run Boot SW

DHCP response:

IP address of IP DSLAM

and Domain File Server

name and path to

Appl. SW and Conf. File

Download Application SW

Store Application SW to Flash

Download Configuration File

Store Configuration File to Flash

New IP Address used

by the IP DSLAM

Domain

File

Server

DHCP request

DHCP

Server

Application

Boot

Run Application SW

IP DSLAM runs in normal

managed mode

Figure 9 Initial Start Procedure (Power up) of the IP DSLAM

3.2.3.2 DHCP Request Procedure

The DHCP request procedure of the IP DSLAM is a compromise between

robustness and speed. Optimizing the procedure for startup speed will not

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Ericsson EDN312 Guia do Utilizador Página 22