Protocol Stacks

Rebaca has been involved in protocol stack development & porting. The key projects handled in this domain are:

• Development of 802.11b for a PDA environment
• Development of GTP Protocol stack and associated APIs
• Porting of Spanning Tree Protocol (IEEE 802.1d) and Rapid Spanning Tree Protocol (IEEE 802.1w)
• Development of Layer2 Tunneling Protocol based on RFC 2661
• Development of Point to Point protocol (PPPoX) includes:
   - Link Control protocol (LCP)
   - Internet Protocol Control Protocol (IPCP)
   - Authentication protocols such as, PAP, CHAP etc.
• Development of VoIP protocol
   - SIP User Agent with support for “message summary” and SDP
   - Implementation of MGCP stack for controlling Media Gateways
   - Implementation of RTP stack for multimedia communication
• Development of :
   - RFC 2326 compliant RTSP Client and RTSP Server Implementation
   - SDP support for presentation description: RFC 2327 compliant SDP library  
      Implementation
   - RFC 1889 compliant RTP/RTCP library Implementation
   - RFC 2250 support
      - MPEG-1/MPEG-2 elementary stream transmission in RTP packet
      - Implementation of MPEG2 transport stream transmission in RTP packet
• Development of MPLS over extended RSVP conformance tester
   - To Test the basic RSVP, LSP Tunneling with extended RSVP, RSVP refresh reduction
      scheme
• Development of Control and Management Plane for Network Device which includes
   - Common Open Policy Service
   - Routing protocol such as OSPF, BGP etc.
   - Policy Server for Packet Cable Multimedia 1.0
• ILMI conformance test tool
   - Development of ILMI conformance Test Tool
   - To Test the ILMI protocol based on ATM Forum’s ILMI specification

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Device driver & Firmware

Rebaca has worked extensively on Device Driver development for various chipsets e.g. VLSIs for Set top box application, SONET / SDH VLSIs, Media chipsets, DTV chipsets etc. The device drivers have been developed on various RTOS (e.g. vxWorks, Linux, OS9 etc.). The key projects executed by Rebaca are as follows:

• Device driver development for Ethernet over PDH chipset (Link to the slide present in SONET / SDH domain)
• Device driver development for Set Top Box application
• Device driver development for DTV application

Rebaca has developed Device driver for various chipsets. The key projects executed by Rebaca are as follows:

• Cable Modem host driver
• QAM receiver driver
• OS adaptive Ethernet driver for AMD PCnet 79970
• Tuner driver
• Graphics driver for video capture, overlay and alpha blending
• Audio driver for playing .wav & .mp3 files
• Serial Modem driver for PPP connectivity
• Device drivers for SCART, Video Matrix, PWM, Skew, DiSEqC, Front Panel devices
• Ethernet driver for AMD PCnet 79970 (SPF compliant)
• IR receiver driver
• Graphics driver (MAUI compliant)
• ISO 7816 Smart Card driver
• NVM or Flash

Tools & Technologies

OS for Embedded Technologies VxWorks OS9 Nucleus Power TV Embedded Linux Windows CE Linux UNIX Monta Vista Linux CPU 68 K Power PC X86 MIPS SparcLite ARM SH4

Tools Fast Track – OS 9 Tornado – VxWorks Sara – Power TV C-Ware – VxWorks Languages C C++ Assembly (Sparc, PowerPC MPC 823, SH4) Test Equipments Logic Analyzer IC Emulator Oscilloscope Storage Oscilloscope 1394 Data Analyzer OmniBer Anritsu MP1560A Acterna (W&G) ANT20