Alcatel-Lucent 7342 - Overview; Software Architecture Levels; Figure 4-1 Software Architecture Levels

4 — ONT software and security features
4-2 July 2008 Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06
ONT Product Information Manual Edition 01 3FE 51892 AAAA TCZZA
4.1 Overview
This chapter provides a functional description of ONT software and security features
with reference to ONT hardware functional blocks.
Software and security features are developed for each Alcatel-Lucent ONT. The
software comes preinstalled in the ONT system memory when the ONT is first
delivered. Software updates and upgrades can also be installed via EMS or TL1. For
more information on installing and upgrading ONT software, see the
7342 ISAM FTTU ONT Software Installation Procedures.
Software architecture levels
Figure 4-1 provides a depiction of each level of software used to support the ONT
hardware.
Figure 4-1 Software architecture levels
The following list provides a description of the hardware and software functions
supported for all ONTs.
1 The hardware functional blocks are described in chapter 5 and chapter 6.
2 Low level device drivers control elements of each functional block on an ONT.
3 The embedded Linux kernel provides the operating system for the ONT.
4 Each ONT supports the following protocols:
• TCP/IP
• ICMP
• IGMP version 2 and 3
• FTP
• DHCP
• ARP
• VoIP (including SIP mode 1 and 2, H.248 (Megaco), etc...)
• PPPoE
• UDP
Service Management Applications
Embedded Linux Operating System
Hardware Functional Blocks
Low Level Device Drivers
File storage
Database
Protocols
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