Agilent Technologies 81250 User manual

S1
Agilent 81250 ParBERT SONET/SDH Frame Generator
User’s Guide

2Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002
Important Notice
© Agilent Technologies, Inc. 2002
Manual Part Number
5988-5231EN
Revision
Revision 5.0, November 2002
Printed in Germany
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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.