Jayhawk

University of Kansas

Telecommunications & Information Sciences Laboratory

Electrical Engineering & Computer Science

Elements of Network Transmit Path

Functionality

  • receives cells from CommonPCB
  • buffered for rate adaptation
  • bandwidth and flow control
  • flow control credits updated
  • bandwidth scheduling updated
  • cells scrambled and formatted for SONET framing
  • cells multiplexed with SONET overhead
  • SONET frame scrambled and transmitted

    • Transpose Chip

  • HEC computation and insertion
  • cell payload scrambler
  • SONET overhead insertion
  • 4xOC-3c: XC3195-3 @ 20 MHz, 5022 equivalent gates
  • OC-12c: XC3195-3 @ 20 MHz, 5194 equivalent gates
    • ATM/SONET Mapper

    SONET Scrambler Chip

  • Section, Line, Path BIP-8 computations and insertion
  • SONET scrambling
  • 4xOC-3c and OC-12c: XC3195-3 @ 20 MHz, 4068 equivalent gates
    • SONET Scrambler

    Author

    Joseph B. Evans, <evans@ittc.ku.edu>