Overview
V5.x is a switching and signaling telecommunication protocol between Access Network (AN) and Local Exchange (LE) and
operates only on E1 circuits.
GL's V5.x analyzer can be used to capture and analyze a stream of frames from the link between LE and AN. The analyzer provides
V5.x based on ETSI / ITU standard in order to decode according to the corresponding standards. Supports capturing and decoding of LAPV5,
ISDN Call Signaling - Q.93 as layer 3, Link Control Protocol (LCP), Protection Protocol (PP), Bearer Channel Connection (BCC), and PSTN
GL Communications supports the following types of V5.x analyzers:
- Real-time V5.x Analyzer (Pre-requisites: GL's field proven E1 or T1 internal cards or USB Laptop E1 or T1 external units, required licenses
and Windows 2000/XP Operating System)
- Remote /Offline V5.x Analyzers (Pre-requisites: Hardware Dongle, and Windows 2000/XP Operating System)
V 5.x Analyzer Main Features
- Provides Summary View, Detail View, Hex dump, statistics, and call trace views.
- Summary View displays LAPV5.x information and V5.x messages
- Detailed View displays easy to understand decodes of user selected frame
- Hex dump view displays the frame information in HEX and ASCII format
- Statistics view displays statistics based on frame count, byte count, frames/sec, bytes/sec etc for the entire capture data
- Call trace isolates call specific information i.e. status of each call (i.e. Active/Completed), duration of completed call, Device No, Timeslot,
Call ID, Call Status and Layer 3 Address.
- Capability to export summary as well as detail information to an ASCII file for subsequent import into a database or spreadsheet
- Supports filtering and search features based on LAPV5 parameters and Q.933 layer parameters such as C/R, SAPI, EF Address, CTL, P/F,
Call Reference #, ISDN Message Type, Called Party Number, Channel Number, Progress Description.
- Remote monitoring capability using GL's Network Surveillance System
Additional features supported by real-time/remote V5.x are:
- Supports capturing and decoding of LAPV5, ISDN Call Signaling - Q.93 as layer 3, Link Control Protocol (LCP), Protection Protocol (PP),
Bearer Channel Connection (BCC), and PSTN.
- Streams can be captured on the selected time slots (contiguous or non-contiguous), sub-channels or full bandwidth. Frames may also
be contained in either one, n x 64 kbps, or n x 56 kbps data channels. The following variations are accommodated in the software:
inverted or non-inverted data, byte reversal or non-reversal.
- The following variations are accommodated in the software: inverted or non-inverted data, byte reversal or non-reversal.
- Recorded trace files can be played back using HDLC playback option.
- Multiple remote clients may access a single T1/E1 server, which enables monitoring two or more cards instantaneously. (For Remote
Analyzers only)
- Supports real-time filtering based on the frame length value.
- Multiple streams of V5.x traffic on various T1/E1 channels can be simultaneously decoded with different GUI instances
Additional features supported by Offline V5.x Analyzer:
- Trace files for analysis can be loaded through simple command-line arguments
- Multiple trace files can be loaded simultaneously with different GUI instances for offline analysis
Summary, Detail and Hexdump Views
The V5.x analyzer application is invoked from the main menu of GL's E1 Analyzer for real-time analyzer. The remote/offline V5.x analyzer
is invoked from the installation directory of the remote V5.x Analyzer. The analyzer displays, summary, detail and hexdump view in different
panes. Summary pane displays Device No, Time Slots, Sub Channel, Frame Number, Time, Frame Length, Frame Errors, C/R, CTL, P/F, FUNC,
V5Link-Add, N (S), N(R), V5.x messages etc. for all frames. User selects a frame in Summary View to analyze in detail. The selected frame is
analyzed and decoded as per the protocol standard selected by the user (ETSI / ITU). If the 'Information' column in the Summary view
contains any V5.x messages (PSTN, BCC, Control, Link and Protection protocol), detail view will decode and display the inner content of the
information field of V5.x frame. Hex dump view displays the captured data for the selected frame in hex format.
Screenshot of Summary, Detail and Hexdump View
Real-time/Remote and Offline Analysis
User can capture and analyze V5.x frames using either real time or remote analyzer All or filtered traffic can be recorded into a trace file.
The recorded trace file can then be analyzed offline and exported to ASCII file, or printed. Real-time capturing requires user to specify timeslots,
bit inversion, octet bit reversion, user/network side, and data transmission rate. Recorded trace file can be played back on E1 using
HDLC playback option.
Screenshot of Real-time and Offline Analysis
Filtering and Search
Users can record all or filtered traffic into a trace file. Filtering and Search capability is an important feature of V5.x analyzer s/w.
This feature can isolate certain specific frames from all frames in real time as well as offline. Users can specify custom values for frame
length to filter frames during real-time capture. The frames can also be filtered after completion of capture according to C/R,
V5Link-Add, CTL, P/F, N(S), N(R), FUNC, INFORMATION and more. The criteria for filtering can be set by user and a separate GUI is
provided for that. Similarly, Search capability helps user to search for a particular frame based on specific search criteria.
Screenshot of Filtering and Search Window
Statistics and Call Trace View
Statistics is an important feature available in V5.x analyzer and can be obtained for all frames both in real-time as well as offline mode.
Numerous statistics can be obtained to study the performance and trend in the V.5x network and it is based on protocol fields and different
parameters e.g. Use Type (Key/Total/Field), Statistic type (Frame count, Byte count, Frames/Sec etc.) and patterns like Range List, Wild card
and Value Sets.
Call trace defining important call specific parameters like. status of each call (i.e. active/completed), duration of completed call,
Call Status, Call ID, Device Number, Timeslot and Layer 3 Address for each individual call from the captured data are displayed in Call
Trace view. Call Detail Recording feature includes data link groups that help in defining the direction of the calls in a given network and
form logical groups comprised of unidirectional (either 'Forward' or 'Backward') data links.
Screenshot of Statistics and Call Trace Window
Enhanced Trace Saving Options
Users can control the captured trace files by saving the trace using different conventions such as trace files with user-defined prefixes,
trace file with date-time prefixes, and slider control to indicate the total number of files, file size, frame count, or time limit. This feature also
allows the captured frames to be saved into a trace file based on the filtering criteria set using display filter feature.
Screen Shot of Enhanced Trace Saving Options Window
Save/Load All Configuration Settings
Protocol Configuration window provides a consolidated interface for all the important settings required in the analyzer. This includes
various options such as protocol selection, startup options, stream/interface selection, filter/search criteria and so on. All the configuration
settings done in any of these options can be saved to a file, loaded from a configuration file, or user may just revert to the default values
using the default option.
Screen Shot of Save/Load All Configuration Setting Window
Bridge and Monitor Connections
Buyer's Guide:
Please Note: The XX in the Item No. refers to the hardware platform, listed at the bottom of the Buyer's Guide, which the software will be running on. Therefore, XX can either be DPT, DPE, PCT, PCE, HDT, HDE, DLT, DLE or UTE depending upon the hardware.
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