ATM Protocol Analyzer for OC-3 / STM-1
and OC-12 / STM-4
ATM in a OC-3 / STM-1 OC-12 / STM-4 Network
Asynchronous Transfer Mode (ATM) is a flexible network, which carries voice, video, and data in the same way, i.e.
fixed length cells. It has generated a number of revenue opportunities because of its different classes of service support
for multimedia traffic, efficient bandwidth management for burst traffic, support for LAN/WAN architecture and high
performance via hardware switching.
ATM network basically has two kinds of interfaces i.e. UNI (Interface between ATM User and Public ATM switch) and
NNI (Interface between two Public ATM switches). Similar to the OSI Protocol model, ATM protocol architecture has an
ATM Layer as Layer 2, ATM Adaptation Layer (AAL) as Layer 3, and other higher layers depending on C-Plane, U-Plane
or Layer Management Plane. User information is transferred across U-Plane and Signaling messages are transferred
across C-Plane. ATM-UNI signaling is used to create and release SVCs along with a particular QoS attached to it
depending bandwidth on demand.
GL's OC-3 / STM-1 OC-12 / STM-4 ATM Analyzer is used to analyze and decode different ATM protocols like ATM, AAL2 Protocols (CPS-SDU, SSSAR-SDU, and SSCS), AAL5 (CPCS), UNI and others across U plane and C plane of UNI and NNI interface. The analyzer can also decode ATM frames constituting Classical IP over ATM, or CIP based networks, and traditional SS7 Stack (ISUP, SCCP, MAP, CAMEL(CAP) etc) over ATM.
The ATM Analyzer can capture, decode, filter, and reassemble AAL-2 and AAL-5 frames in real-time, from within the ATM cells according to user defined VPI/VCI. The real-time ATM Analyzer requires GL's LightSpeed1000™ internal PCIe cards or USB external units, along with licenses and Windows® XP (or higher) OS
ATM Analyzer Main Features
- Displays Summary, Detail, Hex-dump, and Statistics Views
- Detail View
- Displays decodes of a user-selected frame from the summary view
- Provides options to display or hide the required protocol layers
- Contents of this view can also be copied to clipboard
- Summary view displays Dev #, Frame #, VPI/VCI, PT (Payload Type), HEC, OSF, AAL Type, Frame Type, CID, LI, CPI, UUI, SSSAR CID, SSCS message type and more in a tabular format
- Any protocol field can be added to the summary view, filtering, and search features providing users more flexibility to monitor required protocol fields.
||UNI signaling protocols i.e. UNI 4.0, UNI 3.1 and UNI Q-293.
|Filtering and Search
||Advanced filtering and search based on any user selected protocol fields
|Capturing Streams and Decoding Frames
- Streams may be captured on the selected ports
- Multiple streams of ATM traffic on various ports can be simultaneously decoded with different GUI instances
- Captures, decodes, filters, and reassembles AAL-2 and AAL-5 frames in real-time, from within the ATM cells according to user defined VPI/VCI.
- Supports decoding of Classical IP over ATM, Multi-Protocol Over ATM, and SS7 signaling over ATM
- Exports Summary View information to a comma delimited file for subsequent import into a database or spreadsheet.
- Capability to export detailed decode information to an ASCII file
|Additional Features of ATM
- Ability to configure .ini file for PVC carrying UNI signaling messages to get the proper decoding options.
||Remote monitoring capability using GL's Network Surveillance System
For the list of supported protocols that are supported by GL's OC-3 / STM-1 OC-12 / STM-4 ATM analyzer visit ATM Supported Protocols web page..
Summary, Detail, and Hexdump Views
The ATM Protocol Analyzer application is invoked from the main menu of GL's OC-3 / STM-1 OC-12 / STM-4 ATM Analyzer for
real-time analysis. The analyzer displays Summary, Detail, Hex Dump, Statistics, and Call Detail Views in different panes.
The Summary pane displays Dev#, Frame#, Time, Length, Error, VPI/VCI, PT and so on. User can select a frame in
Summary View to analyze and decode each frame in the Detail View. The Hex Dump View displays the frame information
in HEX and ASCII format.
Protocol Summary, Detail, and Hex
Dump Views in ATM Protocol Analysis
Real-time and Offline Analysis
Users can capture and analyze UNI or NNI interfaces in real-time and record all or filtered traffic into a trace file.
The recorded trace file can then be analyzed offline and exported to ASCII file, and printed. User can capture raw ATM
data and transmit using “Rx Packets to File” application.
Port Selection for Real-time Capture
Filtering and Search
Users can record all or filtered traffic into a trace file. Filter and search capabilities adds a powerful dimension to
the ATM Analyzer. These features isolate required frames from all the captured frames in real-time, as well as offline.
Users can specify VPI, VCI, and PT type values to filter frames during real-time capture. The frames can also be filtered
after completion of capture according to Dev#, Frame #, Time, Length, Error, VPI/VCI, PT (Payload Type), HEC, OSF,
AAL Type, Frame Type, CID, LI, CPI, UUI, and more. Similarly, search capability helps user to search for a particular
frame based on specific search criteria.
Offline Filtering and Search Criteria for
ATM Protocol Analysis
Real-time/Pre-Capture Filtering Criteria
for ATM Protocol Analysis
Using reassembly option user can specify VPI /VCI values to reassemble as per the Segmentation and Reassembly
rules defined by the specified AAL type. It multiplexes ATM cells as per the user specified VPI/VCI/AAL type into CPS or
SAR frames. ATM cells not satisfying the user specification will be reassembled as per the default specification.
Reassembly Options for ATM Protocol
Call Detail Record and Statistics View
Call trace defining important call specific parameters like Call ID, Call disposition, Call duration, VPI/VCI, Call type
(point-to-point/point-to-multipoint etc) calculated based on UNI signaling messages are displayed in Call
Statistics is an important feature available in ATM analyzer and can be obtained for all frames both in real-time as
well as offline mode. Various statistics can be obtained in Statistics View to study the performance and trend in the
ATM network based on protocol fields and parameters.
Statistics Options for ATM Protocol
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.
Protocol Trace Saving Options for
ATM Protocol Analysis
||OC-3 / STM-1 ATM Protocol Analysis
||OC-12 / STM-4 ATM Protocol Analysis
||Other Related Software
||OC-3 / STM-1 ATM Monitor, BERT, Tx/Rx Test
||OC-12 / STM-4 ATM Monitor, BERT, Tx/Rx Test
||OC-3 / STM-1 PoS Monitor, BERT, Tx/Rx Test
||OC-12 / STM-4 PoS Monitor, BERT, Tx/Rx Test
||OC-3 / STM-1 ATM and RAW Record / Playback
||OC-12 / STM-4 ATM and RAW Record / Playback
||OC-3 / STM-1 PoS and RAW Record / Playback
||OC-12 / STM-4 PoS and RAW Record / Playback
||OC-3 / STM-1 PoS Protocol Analysis
||OC-12 / STM-4 PoS Protocol Analysis
||OC-3 / STM-1 UMTS Protocol Analysis
||OC-12 / STM-4 UMTS Protocol Analysis
||Lightspeed1000™ - Dual OC3/12 STM1/4 PCIe Card
||Lightspeed1000™ - Portable Dual OC3/12 STM1/4 USB Unit
|DDR2 512 MB Memory
DDR2 1 GB Memory
DDR2 2 GB Memory
|SFP, Single Mode
|Fiber Optic Cable, Single-Mode, Duplex LC to LC, 2m
Fiber Optic Cable, Single-Mode, Duplex LC to SC, 2m
Fiber Optic Cable, Multi-Mode, Duplex LC to LC, 2m
Fiber Optic Cable, Multi-Mode, Duplex LC to SC, 2m