Ericsson EDN312 Betriebsanweisung PDF herunterladen (Seite 21)

Function Description

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

Download

application and

configuration files

Domain File

Server

FTP

Server

TFTP

Server

DSLAM

TFTP

Client

FTP

Client

Up-/Download

of Remote Storage

files

Figure 8 Upload/Download of SW Elements

Note that an embedded IP DSLAM uses its ECN as a Domain File Server.

3.2.3 The IP DSLAM Start Procedure

3.2.3.1 Normal Start

When the IP DSLAM has been installed and is powered up it will do the

following, see Figure 9 on page 18:

1. Execute the Reset SW. The Reset SW unpacks the compressed Boot

SW. If more than one version of Boot SW exists in the Flash, the

newest is selected. The selected Boot SW is executed.

2. The Boot SW will issue a DHCP request and negotiate with the

DHCP Server, from which it will receive an IP address for the IP

DSLAM, the IP address of the Domain File Server and the names of

and path to the application SW and configuration files. Other

information, like DHCP option 82 for example, may also be received.

The DHCP request procedure is described in details in section 3.2.3.2

on page 18.

Note: If the active ECN is unreachable, and the DHCP offer comes from

an ECN configured as standby, the offer is in an invalid format.

When the IP DSLAM detects the invalid format, it will immediately

start from the Flash (used in link redundancy during switchover).

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Ericsson EDN312 Betriebsanweisung Seite 21