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NTU Optical Network Terminals
25
–
veip0.1 is for the Internet;
–
veip0.2 controls the multicast traffic;
–
Veip0.3 provides VoIP services;
–
veip0.6 provides VoD and IPTV on STB.
These WAN interfaces have the following operation modes:
–
PPPoE—starts PPP client;
–
IPoE DHCP—starts DHCP client;
–
IPoE Static—uses a static address;
–
Bridging—operates in the bridge mode.
The
bri
blocks are the objects of the 2nd level and operate as bridges between the LAN and WAN
interfaces to include the interface into one group. The
br1
block is connected to the veip0.1 interface, which
operates in the PPPoE mode, and to the eth0 port. The
br4
block operates in DHCP mode in order to
use the address of this interface for SIP client (Voice block). The
br2, br5, br6
blocks operate as a bridge, which
allows transparent traffic transmission to the LAN ports of the router.
The
eth0..1
blocks represent LAN interfaces for connection of subscriber’s equipment.
Fig. 14—Architecture of the Device Configured for Triple Play Model 2 Services
Model 2 Services
The difference between the models is the
GEM4095
block, which is a logical terminal of the GEM port for
broadcasting. It broadcasts traffic downstream. Broadcast packets are sent from the
GEM4095
block to
WANConnectionDevice
and then are further transmitted to
bri
according to VLAN ID.
