Clarinet ISDN application

Presentation

Standard Features

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

Interface Connection

Interface Under Test

• E1 75 or 120 Ohms
• T1 75 or 100 Ohms
• S-T Bus I431
• U 2B1Q

Operating Interface

• Transdata
• Handset
• Transit

Analysis Functions

Interface Management

• Up to 7 simultaneous interfaces
• Simultaneous management on each interface of three types of PH, SL, DL links:
  • PH-physical interface: U,  S-T, E1 or T1 selection.
  • Signaling link: definition of the signaling channel (T1 or E1) for D channel.
  • Data link: automatic B channel of BOP, BERT or BYTE-TS type.

Protocol Event Generation

• Time-stamping at 0.1ms
• Physical level: U and S-T states (infos I430), E1 and  T1 alarms.
• Signaling link:  D channel HDLC frames.
• Data link: HDLC frames, BERT-G821 results or BYTE-TS blocks.
• DTMF code.

Statistics Event Generation

• Sampling at a user specified value (in sec)
• BOP type event counters on SL or DL.
• Data-flow counters on BOP link at different protocol layers.

Protocol Specification for Display

• Physical Link: E1 TS0, T1, I430, G861
• Signaling Link:
  • Data structure: BOP envelope, SS7.
  • Decoding according to a protocol stack with 7 decoding levels
• Data Link:
  • Data structure: BOP envelope, SS7, BERT, BYTE-TS.
  • Decoding according to a protocol stack with 7 decoding levels
• Event-Editor Functions for events, formatting, and filtering

Simulation Functions

Q931 Automatic Simulation:

• Independent outgoing communications defined by:
  • delays and IE buffer for SETUP, INFOS, RELEASE.
  • number of repetitions and inter-communications delay.
  • B channel establish and active source.
• Identical incoming communications defined by:
  • ACCEPT/REJECT behaviour.
  • Transmission option and IE buffer for SETUPACK, CALL-PROC, RELEASE.
  • Delay before CONNECT.
  • Establish and active source of the B channel: default or indication by USER INFO.
• Manual commands: CALL, CLEAR, INFO, RESTART, etc..., DTMF values.
• Outgoing communications triggered by:
  • Starting delay.
  • Manual commands.
  • Incoming communications (for 15 outgoing communications).
• Call simulator data sources:
  • BOP Mode DL: X25 call simulator, user program.
  • DL Mode BERT: Pattern: 29 - 1 (V52), 211 - 1 (O152), 215 - 1 (O151), results according to CCITT G821.
  • DL Mode BYTE-TS.
  • LOOP.
  • External TRANSIT or TRANSDATA links.
  • COFIDEC 1 and 2 internal links on analog sources: DTMF 1 and 2,  HANDSET...

Emulation Functions

Physical Layer

• Emulation mode: BRI / PRI, NT (Network) or TE (User).

Link Layer: Q921

• SAPI 0,16 and 63 initialization
• Setting of Parameters (time-limits, numbering)

Network layer: Q931

• Selection of national variants (ETSI, NI2,ATT...)
• Setting of Parameters (time-limits, numbering...)

Data simulation

X25 Automatic Simulation:

• X25 automatic simulator can be run in:
  • D channel
  • B channel

Frame Relay automatic simulation:

• Frame Relay automatic simulator can be run in B channel

IP automatic simulation:

• IP/TCP/H323 automatic simulator can be run in B channel

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:
  • ISDN Basic call and Supplementary services Network side
  • ISDN Basic call and Supplementary services User side
  • ISDN TBRs
• Template of profiles, PICS/PIXIT
• Execution under Clarinet Run-time

ATS

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

Clarinet-system: basic configuration

Clarinet-system: ISDN options

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Last modification: 27/02/04