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RG-5400 Subscriber router
11
Device network features block
provides passing and switching IP-packets in accordance with the device
routing table and can process both untagged and tagged packets depending on network interface settings. The
block supports Static, DHCP, PPPoE, PPTP and L2TP.
VoIP block
provides the device operation via SIP protocol to transmit voice signal through packet-
switched network. Subscriber’s voice signal is transmitted to the SLIC subscriber line module to be digitized.
Sampled signal is directed to VoIP block to be encoded in accordance with selected standards and is
transmitted further in the form of digital packets to the controller via the intrasystem backbone. In addition to
voice signals, digital packets contain control and interaction signals.
Multicast traffic processing block
is designed to process IGMP messages and multicast traffic with the
aim of IPTV function support.
Control block
based on Linux operating system monitors operation of blocks listed above and device
subsystems and manages their interaction.
Fig. 3 shows
RG-5421G-Wac
function diagram.
Fig. 3 –
RG-5421G-Wac
function diagram