Frame Relay Specifications Supported

Contents

DLPI STREAMS Driver
CDI STREAMS Driver
Frame Relay Protocol Standards
Configurable Parameters
Frame Relay Features
Frame Relay Line Level Features
Physical Interfaces

Summary

  • High-performance - Kernel mode drivers for fast protocol handling
  • Test software - Test programs to assist your development effort
  • System administration - Utilities for configuring the software and obtaining statistics and trace information
  • Link management protocols - Local Management Interface (LMI), ANSI Annex D, CCITT Annex A
  • Hardware available from GCOM
 Gcom provides protocol solutions to connect legacy systems to TCP/IP networks. Protocols: SNA, X.25, Bisync, Frame Relay, LAPB, LAPD, HDLC, SDLC, and more. Operating systems: Windows, Linux, Unix, Solaris, Solaris Intel, QNX, and more. Hosts: Any TCP/IP/Ethernet-capable host (IBM, Unisys, Tandem, HP mainframes...), PCs, Intel PCs, SPARC or Sun workstations, and more. End-user devices: ATMs, POS, radar terminals, and more.
Streams Model

DLPI STREAMS Driver for Frame Relay

  • Implements DLPI Ver 2.0
  • STREAMS Multiplexor driver
  • Compatible with UNIX 5.3 and 5.4, QNX and Linux
  • Network management support
  • Uses CDI to interface to physical line driver below
  • Supports user API and TCP/IP interface

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CDI STREAMS Driver for Physical Line Driver

  • STREAMS device driver
  • Compatible with UNIX 5.3 and 5.4, QNX and Linux
  • Network management support
  • Drivers for a variety of synchronous boards

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Frame Relay Protocol Standards

  • T1.606
  • LMI, Annex D
  • ISDN compatible
  • T1.602 (LAPD) core services
  • Q.921 LAPD available

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Configurable Parameters

  • Committed information rate
  • Committed rate measurement interval
  • Committed burst size
  • Excess burst size
  • Encapsulation type
  • LMI type and options

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Frame Relay Features

  • Multiple physical links
  • Multiple PVCs per link
  • Data metering according to CIR
  • Adjustable measurement interval
  • Congestion signaling
  • Invalid frame signalling
  • Use of LMI and Annex D to manage the link
  • LAPD core framing
  • Statistics gathering
  • Trace buffers for diagnostic procedures

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Frame Relay Line Level Features

  • Maximum frame size
  • Watchdog timer on transmissions
  • Inter-frame delay option
  • Oscillation detection for modem signals
  • Statistics: CRC errors, underruns, overruns, aborts, number of bytes transmitted/received, others

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Physical Interfaces

  • V.35/RS232
  • 56Kbps DDs
  • T1 or fractional T1

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