1 — ONT and MDU overview
1-14 March 2011 Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.42a
ONT Product Information Guide Edition 01 3FE 54199 AAAA TCZZA
Figure 1-1 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 the ONT unit data sheets.
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 (RFC 2236) and 3 (RFC 3376)
• FTP
• DHCP
• ARP
• VoIP (including SIP mode 1 and 2, H.248 (Megaco), etc.)
• PPPoE
• UDP
5 SOC-based ONTs rate-limit the number of control packets for protocols IGMP,
DHCP, and ARP to 10 control packets per second by ONT UNI port. IGMP is
not rate-limited for an ONT UNI port if an IGMP channel is provisioned for the
port.
6 ONTs provide a file storage database (flash or SDRAM).
Service Management Applications
Embedded Linux Operating System
Hardware Functional Blocks
Low Level Device Drivers
File storage
Database
Protocols
19422
To Next Page
Loading...
