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Cable/xDSL/Optical

HSC offers Product Engineering, R&D and Maintenance services for carrier grade infrastructure in the field of xDSL, IP-DSLAMs, ATM-DSLAM, PON/GPON, Packet Cable DOCSIS, Metro Ethernet, and MoCA. We also develop and maintain device and network management solutions based on TR-069, SNMP, SOAP, NetConf/XML and COTS solutions.

White Paper/Open Sources related to Cable/xDSL/Optical

TCP revisited

Abstract: TCP is transmission Control Protocol, the Layer4 protocol for communication over both wireline as well as wireless links. It is one of the most widespread of protocols in usage today. All key applications defining the web today, http, email transfer, file transfer, etc.
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Case studies related to Cable/xDSL/Optical

Cisco Complaint XOT implementation to enable X.25 overlay over a satellite base IP network backhaul Abstract: The existing implementation used a proprietary backbone protocol to send serial data across the Satellite based IP network which mandates a proprietary node at CO side to terminate TCP connection initiated between the VSAT and the Serial Gateway. HSC enhanced this implementation by augmenting it with the standard XoT implementation(as per Cisco informational RFC 1613) in order to have the flexibility to do away with the Serial Gateway at the CO side and replace it by industry standard devices from vendors like Cisco, IBM. Read more...
Implementation of a TR-069 Data Model (DM) Client Framework for a WiMAX CPE Abstract: TheTR069 client Framework implemented on VxWorks provides Event Discard Policy, Session Retry Policy; secured communication with remote servers using SSL 3.0/TLS 1.0 and Basic/digest Authentication. It provides interfaces for CPE applications to interact with ACS server. Read more...
Enhancing IPv4 VSAT to a Dual Mode VSAT (IPv4/IPv6) Abstract: Typically a VSAT has two major interfaces, the LAN side on which it has subtended user networks and the RF Network side. Implementation includes IPv6 Neighbor Discovery and translation algorithms for IPv6-IPv4-IPv6 traffic terminating on the VSAT. This enabled an IPv6 host to access application on VSAT supporting only IPv4. Customer Benefits: Flexibility of subtending IPv4 or IPv6 networks on the LAN side Enable IPv6 interface with minimal changes on the existing software on the VSAT. Read more...