Agilent Technologies 81250 Manuel utilisateur

Agilent 81250 ParBERT SONET/SDH Frame Generator

User’s Guide

2Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002

Important Notice

Manual Part Number

5988-5231EN

Revision

Revision 5.0, November 2002

Printed in Germany

Agilent Technologies

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D-71034 Böblingen

Germany

Authors: t3 medien GmbH

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Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002 3

Contents

Introduction to the Frame Generator 5

What the Frame Generator Does 5

Installing the Software 5

Using the Frame Generator 7

Generating Frame Files 8

Importing Frames into ParBERT 9

Editing Frame Files 9

Selecting the Files to be Generated 11

Converting Frame Files 12

How the Frame Generator Works 13

How Frames are Generated 13

BIP Coding 14

Payload Details 15

SONET Path Overhead and SDH HP Overhead Details 16

SONET Line Overhead and SDH MS Overhead Details 17

SONET Section Overhead and SDH RS Overhead Details 18

CMI Coding 20

Synchronizing Pattern 20

Graphical User Interface Reference 23

Settings Area 24

Menus 27

File Menu 27

View Menu 28

Help Menu 28

Tool Bar 28

Status Bar 29

Contents

4Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002

Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002 5

Introduction to the Frame Generator

The SONET/SDH Frame Generator (referred to as the Frame

Generator) is a software application for generating SONET and SDH

frames for Par ERT.

What the Frame Generator Does

The Frame Generator allows one or more structured patterns (also

known as frames) to be specified and generated for SONET testing by

Par ERT. It provides you with a graphical user interface (GUI) for

entering basic frame patterns, and lets you modify (manually) the

resulting frame files.

See “Using the Frame Generator” on page 7 for more information on

how to use the frame generator.

Installing the Software

The Frame Generator is part of the Par ERT installation. If you would

like to install the Frame Generator on another computer (for example,

to generate and edit frame files on a laptop), use the normal Par ERT

installation CD, and select only the Frame Generator installation.

Introduction to the Frame Generator Installing the Software

6Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002

Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002 7

Using the Frame Generator

This topic provides a short overview of what you have to do to

generate frames for use in Par ERT.

The following figure provides an overview of the workflow.

Figure 1 SONET Workflow

The following steps have to be performed to generate SONET frames

for Par ERT:

1. If not all files are needed, the files to be generated can be selected.

The dialog box for this is opened over File -> Generation Setting.

y default, all files are selected.

See “Selecting the Files to be Generated” on page 11 for details.

Set up pattern in GUI

Generate frame file

Edit frame file

Generate frame file

and segment files

Generate segment

files

Import segment files

into ParBERT

Define files to be

generated

Using the Frame Generator Generating Frame Files

8Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002

2. The settings for the frames to be generated are made on the GUI.

See “How Frames are Generated” on page 13 for information about

the Frame Generator.

3. The selected files are generated by selecting the File Save Menu

button

This opens the Save as dialog box, where you can select the file

name and path for the files to be generated.

See “Generating Frame Files” on page 8 for details.

4. Import the files into Par ERT.

See “Importing Frames into ParBERT” on page 9 for more

information.

In case the frames have to be modified, the following must be done:

5. The frame files are edited. Any text editor can be used for this (that

can handle the size), such as WordPad.

“Editing Frame Files” on page 9 provides notes about what should

be considered when editing frame files.

6. The segment files are generated from the frame files by selecting

File -> Convert Frame(s).

This generates the necessary segment files for the Par ERT

analyzer and generator.

See “Converting Frame Files” on page 12 for more information.

You can then import these files to Par ERT.

Generating Frame Files

The GUI provides various fields for configuring the patterns. See

“Graphical User Interface Reference” on page 23 for information

about the various GUI elements.

It is recommended to read “How Frames are Generated” on page 13.

Here you can find information about SONET frames, and how the

various frame sections are manipulated.

When you have made your settings, select File -> Save as, click File

Save Menu, or click the Save File button. This opens up the Save As

dialog box, where you can select the file path and name.

Importing Frames into ParBERT Using the Frame Generator

Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002 9

Importing Frames into ParBERT

When the frames have been generated, they have to be imported to

Par ERT, where SONET tests can then be carried out.

Editing Frame Files

The Frame Generator allows one or more structured patterns (or

frames) to be specified and generated. The pattern is written into a

frame file and/or segment file. The segment file can be imported into

the Par ERT.

The following is an example of the start of an *.hfm file.

#Col. Rows of OC-3 Rows of ignore_flags

# R1 R2 R3 R4 R5 R6 R7 R8 R9 R1 R2 R3 R4 R5 R6 R7 R8 R9

#--------------------------------------------------------------------------

C1.1 f6 0 ff 6a 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C1.2 f6 0 55 6a 0 0 0 0 60 0 0 0 0 0 0 0 0 0

C1.3 f6 0 aa 6a 0 0 0 0 60 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C2.1 28 0 aa a 0 0 0 0 60 0 0 0 0 0 0 0 0 0

C2.2 28 0 55 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C2.3 28 0 f0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C3.1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C3.2 1 df 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C3.3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C4.1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0

C4.2 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0

C4.3 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C5.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C5.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C5.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C6.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C6.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C6.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C7.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Using the Frame Generator Editing Frame Files

10 Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002

C7.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C7.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

#--------------------------------------------------------------------------

C8.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C8.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C8.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

These files can be edited by any editor as text file. For better

recognition of the relevant lines, each line begins with a counter with

the format C<column>.<sts-nr>.

Please note the following when you edit frame files:

• It is recommended only to edit patterns that have not been

scrambled. Otherwise, the changed bytes have to be scrambled

manually.

• “#” comments out a line (you can add any number of comment

lines).

• Do not edit parity bytes. When frame files are converted, all parity

bytes are recalculated. Any changes you made to parity bytes are

lost.

• The synchronizing pattern in row 3, column 1 to 6 may be edited.

However, there may be problems if this pattern is not unique within

the frame.

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