Clarinet ATM application

Presentation

Standard features

Interface connection
Analysis Functions
Emulation functions
Signalling simulation
Programmable simulation
Conformance testing simulation
Clarinet-system: basic configuration

Interface connection

Physical connection

• 2 x STS-3c/STM1 optical connections MMF or SMF
• 2 x E3 connections 

Connection mode

• Serial monitoring
• Parallel monitoring with external splitter on STS-3c/STM1
• Simulation with monitoring

Analysis Functions

Interface management

• Acquisition modes:
  • Cells mode: one event per Cell
  • PDU mode:
    • Automatic Reassembly function
    • One event for each CPCS-PDU.

Protocol event generation

• Both directions
• Time stamping: 0.1 microsecond
• Cells filtering:
  • ATM cells
  • Idle cells

·  Statistics event generation

• Sampling at a user specified value (in sec)

• Counters by PDUs type 

• Data-flow counters on data (Frame-Relay..)

Protocol specification for display

• Cells / CPCS-PDU header
• Protocol stack with 7 decoding levels:
  • SSCOP, Q2931, Q2971, UNI3.1, PNNI,
  • MPOA, LANE, CL-IP,
  • IP, TCP...

Signaling Simulation

Q2931 call simulation:

• Independent outgoing communications defined by:
  • Delays and IE buffer for SETUP, INFOS, RELEASE.
  • Number of repetitions and inter-communications delay.
• Identical incoming communications defined by:
  • ACCEPT/REJECT behavior.
  • Transmission option and IE buffer for SETUPACK, CALL-PROC, RELEASE.
  • Delay before CONNECT.
• Manual commands: CALL, CLEAR, INFO, RESTART, etc..., DTMF values, abcd.
• Outgoing communications triggered by:
  • Starting delay.
  • Manual commands.

Emulation Functions

Cells layer

Selection of interface type:

• NNI
• UNI

ATM layer

Automatic Segmentation/Reassembly function:

• AAL 1
• AAL 3/4
• AAL 5

SSCOP Layer

• ITU-Q2930 (UNI), ITU-Q2940 (NNI)
• Emulator configuration: Time-limits and parameters.

UNI Layer: 

• ITU-Q2931, ITU-Q2971 (Multipoint)
• Network or User side.
• Time-limits and parameters.

Programmable Simulation

API

• Use of CLARINET-Development C language
• Microsoft format library.
• Level N simulation using emulation on signalling channel.

Conformance Testing Simulation

ETS

• Use of ETS packages resulting from TTCN compilation:
  • UNI 3.1 Network side
  • SSCOP
  • Frame-Relay over ATM
• Template of profiles, PICS/PIXIT
• Execution under Clarinet Run-time

ETS

• The Clarinet  TTCN compiler and the stack of emulators allow the users to develop or customize new ETS.

Clarinet-system: Basic Configuration

or:

Clarinet-system: ATM Options

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Last modification: 27/02/04