Atec Agilent-J3763A User Manual
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Technical Specifications
- 11.4- 11.4
- 11.4
- 11.4- 11.4
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Frame Relay Testing Made Easy............Page 2
Acquisition Systems ............................. Page 2
Dual Simultaneous Analysis .................Page 3
Key WAN Features and Functionalit y... Page 4
WAN and Other Technologies Testing..Page 4
Frame Relay Testing.............................. Page 5
Async/BiSync Measurement.................. Page 24
Module Support.................................... Page 26
WAN Inter face Specifications............. Page 27
Remote Operation................................. Page 39
General Specifications ........................ Page 39
Related Literature ................................ Page 40
Warranty .............................................. Page 40
Agilent Ordering Information................. Page 44
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Solve complex internetworkingSolve complex internetworking
Solve complex internetworking
Solve complex internetworkingSolve complex internetworking
problems the first timeproblems the first time
problems the first time
problems the first timeproblems the first time
The Agilent Advisor is a Tool for Todays Field Service Network Managers,
Engineers, and Technicians for the deployment, troubleshooting, and
optimization of todays advanced, Frame-and Cell-based networks with
Mission-Critical Applications.
The Advisor is the most complete LAN, WAN and ATM tool for Installation,
Maintenance and Troubleshooting. The Advisor lets you connect anywhere on
the network and capture all the necessary data to give you complete visibility
into the Network. This document covers Frame Relay aspects of the Advisor
release 11.4, unless otherwise specified. See the LAN Product Overview
(5980-0990E) and the ATM/WAN Technical Specifications (5980-0786E) for
more information.
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To install or troubleshoot a Frame Relay link, you need to test for many things:
physical errors, equipment interoperability, Frame Relay congestion, and even
LAN traffic problems. The Advisor offers integrated Frame Relay protocol
analysis capabilities, along with Bit Error Rate Testing (BERT), stimulus/
response measurements, and statistical analysis capability - everything you
require to get a good look at the physical layer, Frame Relay Signaling, and all
the protocol layers above.
No matter what the traffic level, the Advisor will capture every frame on your
full-duplex network connections. It monitors non-intrusively and captures
Frame Relay data at full line rate. In addition, it can simulate either direction of
a line under test and process previously captured data from its capture buffers
or from a file for retransmission. The analyzer doesnt just capture traffic when
the network is working - it gives you information when the network is broken when you need it the most.
The Advisor with its extensive Frame Relay testing capabilities allows you to
test:
Physical Interface
Physical Layer
LMI Signaling
LMI/PING Responses
DLCI Assignments
CIR
Data Transfer / User Applications
Protocol Distribution
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There are two acquisition systems for ATM and WAN: the J2300D Advisor
mainframe and the J2900A High Speed undercradle.
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The J2300D mainframe comprises the acquisition system for all ATM and WAN
plug-in modules plus the V series interfaces, connectors for which are located
on the body of the mainframe.
In addition, the mainframe includes a full PC running the Microsoft®
Windows98® operating system on a 300 MHz processor, a built in keyboard
with pointing device, a Super VGA active color display, dual PCMCIA card slots,
stereo speakers and the usual printer and serial ports. The PC is used to
control the mainframe acquisition system and the acquisition system in any
attached undercradle, and to collect and post process results.
Note that the PC is not used for real-time processing of measurements this is
all done in the acquisition system and plug-in modules. This allows the PC to
handle multiple tasks such as the Dual Simultaneous Analysis feature which
involves the simultaneous control of the mainframe acquisition system and
attached undercradles, as discussed later.
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The J2900A undercradle is similar in function to the J2300D mainframe except
that it has no built in PC but relies upon the PC contained in the J2300D ATM/
WAN or J3446D LAN mainframes to control it and to collect and post process
results. It accepts all ATM and WAN plug-in modules.
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The Advisor has the ability to test two different interfaces and technologies
simultaneously, e.g. E1 Frame Relay and E3 ATM, DS3 Frame Relay and 10/100
Mbps Ethernet, ATM25 and OC-3c ATM, etc. This functionality lets you to test
interworking in mixed technology environments (see the Application Note 1346
for details on this kind of testing).
In order to perform dual simultaneous analysis, combinations of an Advisor
mainframe (J2300D or J3446D) and an undercradle (J3444A or J2900A) is
required, the mainframe and undercradle being each supported by an application (LAN, WAN or ATM) running on the PC embedded in the mainframe. Note
that the applications do not have to be different so, for example, a J2300D
Advisor mainframe fitted with a J2900A High Speed undercradle could each be
fitted with the same type of ATM or WAN interface and be run simultaneously
e.g. two J3766A ATM25 interface modules.
The following table shows the combination of supported mainframes,
undercradles, interfaces and technologies:
Dual Measur ment Ana lysis Support
WAN onlyWAN/ATMATM only
J2900A High Speed Undercradle
ATM25 J3766A
STM-1/OC-3c
Fast Ethernet
Ethernet
Token Ring
Ethe rnet/TR
J2309A/B
LAN Undercradles
Rev. 11.4
June 2000
DDS 4-wir e
J2908A
HSSI
J3762A/B
ISDN
J2904B
J2905B
T1
J2298B
J2299B
E1
J2293B
J2294C
J2296B
J2297B
E3/DS3
J3759B
J2912B
UTP155
J2913B
J3444A
J2306A
J2307A
FDDI
J2524A
J2300D Mainframe
V Series DDS 4-wire
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LAN Ethernet
Fast Ethernet
Note: The temperature operating range for Dual Simultaneous Analysis is 5° to 30° C (41° to 86° F)
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(Note: See ATM-WAN technical specification publication 5980-0786E for a
complete description of WAN specifications plus the ATM specifications).
The Agilent Technologies Advisor provides the following powerful wide area
network (WAN) features and functions:
WAN testing speeds from 50 bps to 52 Mbps
Built-in all major WAN interfaces into the instrument mainframe, including
V.10/V.11, V.24/V.28/RS-232C, V.35, V.36/RS-449/422/423/530, X.21
Interfaces, including ISDN Basic Rate Interfaces (BRI) S/T/U and Primary Rate
Interfaces (PRI), E3/DS3 Cells and Frames, E1/T1, HSSI, DDS 4-wire, are
available as slide-in modules
Full-featured testing capability for all common WAN technologies, including
Frame Relay, PPP (Sync, Async), ISDN, X.25, HDLC, SNA, Async, Bisync, ATM
DXI, and more
Monitoring, data capturing, and decoding for upper and lower layer
protocols in real time
Decodes LAN encapsulated protocols over WAN, including Voice over IP
decodes: H.323 series, IETF series (SIP, MGCP, SGCP, MEGACO), ITU-T T.38
Real-time and post-processing User Assisted LAN over Frame Relay and
HDLC, PPP, ATM DXI capture/display filtering and searching
Find Error in capture file or buffer
Comprehensive bit error rate testing (BERT)
Asynchronous and Bisynchronous monitor and traffic generation.
Frame Relay analysis Voice and Fax over Frame Relay (FRF.11) decodes
Auto LMI detection and decoding for ANSI, ITU-T or original LMI
Auto LAN encapsulation over Frame Relay detection for RFC 1490/2427,
Ethertype, FRF3.1, and RFC 1483.
Service Level Agreement measurements according to FRF.13
LMI Expert analysis
CIR Measurements in all Frame Relay DLCIs
Tests simultaneously on two different or similar WAN interfaces
Tests simultaneously with other technologies (e.g. Frame Relay, Ethernet)
Signal Level measurement on T1, E1, E3 and DS3
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All major WAN interfaces, including V.10/V.11, V.24/V.28/RS-232C, V.35 and V.36/
RS-449/422/423 are already built into the instrument mainframe; X.21 (with
J2277A external cable V.36/RS-449 to DB15) and RS-530 (with external cable
J2278A V.36/RS-449 to DB25) are also available. Other interfaces, including
ISDN basic rate interfaces (BRI) S/T/U and primary rate interfaces (PRI), ATM
STM-1/OC-3c, E3/DS3 Cell and Frame, ATM 155 UTP, E1/T1, HSSI, DDS 4-wire,
are available as slide-in modules or as undercradle for 10/100 Ethernet, Gigabit,
Token Ring and FDDI, STM-4c/ OC-12c ATM.
Monitoring of LAN data over WAN and ATM is a standard feature. Real-time
monitoring of network conditions is an Advisor powerful testing capability to
dig deeply into the data if needed.
Because the Advisor is a multitasking instrument, you can perform any of the
active stimulus/response tests while the analyzer simultaneously monitors their
effect on the network.
The Advisor traffic generation is another powerful tool; it allows the
transmission of virtually any type of message or frame onto the network.
To get statistical information about the data on your network, the Advisor will
analyze every frame and count user definable events. A number of counters
have been pre-defined.
The Advisor is equipped with standard Bit Error Rate Testing (BERT) and is
capable of generating BERT patterns onto V Series, T1, E1, E3, or DS3 WAN
links.
No matter if your testing needs are for Frame Relay at E3/DS3 or HSSI speeds
or for low speed links, such as Async and Bisync, the Advisor provides all of
this functionality under one single handle solution.
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WAN testing solutions are provided from the easy-to-use main Windows user
interface:
Network Line Vitals
Frame Relay DLCI Statistics
Frame Relay SLA Measurement
Frame Relay CIR Policing
Frame Relay LMI Expert
LAN over Frame Relay Protocol Distribution
Top Talker Statistics
Ping Generation
X.25 LCN Statistics
Decode View
Filters/Counters Statistics
Full bandwidth traffic generation
Line Status
Simulation for retransmission of captured data and user defined simulation
ISDN B-channel call tracking Expert
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The Advisor provides real-time and post-processing
Layer 2 and Layer 3 analysis capabilities for:
Frame Relay
PPP (Sync, Async)
ISDN
X.25
HDLC
ATM DXI
SMDS (optional)
SNA
V5.1/V5.2
Async and Bisync
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No matter how complex your testing needs are, the Advisor with interfaces
such as the T1, E1, E3/DS3, or the HSSI lets you to test and troubleshoot
complex WAN environments to solve WAN access and inter-networking
problems quickly.
The Advisor provides extensive real-time and post-processing test capabilities
for the Frame Relay protocol according to the following recommendations:
ITU-T Q.933 Annex A
ANSI T1.617 Annex D
Original Frame Relay consortium
The Advisor with its extensive Frame Relay testing
capabilities allows you to test:
Physical Interface
Physical Layer
Link Layer
LMI Signaling
LMI/PING Responses
DLCI Assignments
CIR
Data Transfer
Protocol Distribution
SLA
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These basic verification techniques are general approaches to WAN analysis and
troubleshooting that are accepted in the industry because of their systematic
appeal and proven effectiveness.
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CIR is one of the most important features for Frame Relay Management. CIR is
a contract between the Service Provider and an User. This contract allows both
parties to exchange information under controlled traffic conditions. CIR is the
rate expressed in bits per second (bit/s) at which the network agrees to transfer
information under normal conditions. This rate is measured over the measure-
ment interval Tc. The default value of Tc is 1 second.
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The Agilent Advisor performs CIR monitoring of Frame Relay activity in real
time. The analyzer provides useful customer information such as:
Statistical traffic activity per DLCI in graphical and tabular form
Comparison of real traffic activity per DLCI against a fixed CIR value
CIR Statistics in bits, frames and percentage per DLCI for:
Non discardable traffic DE=0
Below the Bc (Committed Burst).
Discard Eligible traffic DE=1
EIR (Excess Information Rate) Statistics in bits per second,
frames per second, and percentage per DLCI for:
- Traffic below Bc (CIR)
- Traffic above the Bc, but below the sum of Bc+Be.
- Traffic above the sum of Bc+Be.
Ability to modify the Bc and Be parameters in post processing mode to
play different CIR scenarios.
Store statistics for further utilization in the Internet Reporter
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Another aspect of the Frame Relay service that often needs to be tested is the
provisioning as defined by the CIR (Committed Information Rate).
Note: This measurement is sometimes called Service Level Agreement (SLA)
testing or Service Level Definitions see the Frame Relay Forum FRF.13 imple-
mentation agreement.
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The Advisor transmits controlled packets into the network according to an
established traffic contract between the user and the network, defined by the
Frame Relay Forum FRF.13. This application characterizes the reliability of the
Frame Relay Network by simulating user traffic and optional background traffic.
There are three possible configurations:
- Transmission of traffic between two advisors connected from end to end
- Physical network loopback utilizing only one Advisor
- Generation of IP-ICMP requests from the Advisor to a network device
This test runs with LMI emulation off and on for the following options:
UNI-User (CPE) Emulation
UNI-Network (Switch) Emulation
NNI Emulation (bi-directional polling)
The following FRF.13 statistics are provided:
All Frames delivered
Bc Frames delivered
Be Frames delivered
All Data delivered
Bc Data delivered
Be Data delivered
Min, Mean, and Max Transfer Delay Availability
The following T1.606 statistics are provided:
Total Frames
Total Data
Total Lost Frames
Misdelivered Frames
DE=1 CIR Frames. Frames marked for possible discard by switch
DE=0 EIR Frames. Frames that should have been marked for discard but
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werent.
Frame Relay LMI Expert
Frame Relay LMI Expert is an application that automatically detects Frame
Relay conditions in the network. The application automatically identify which
standard (ANSI, ITU-T or Original LMI) the network is running.
The following LMI statistics are provided to perform a practical Frame Relay
troubleshooting, based on ANSI T1.617, ANSI T1.618, ITU-T Q922 and Q933:
Monitor Frame Relay Sequence Numbers and report missed sequences
Monitor FULL Status (N391) Polling Cycles
Monitor Status Enquiry messages (T391) counters
Monitor PVC Full Status messages and maintain Full Status summary Tables for:
- Active / Inactive PVCs
- Present / New PVCs
- Deleted / Not deleted PVCs
- Monitor error conditions according to Q.933 Annex A, Paragraph A.5
- T392 timers and thresholds
- N392 and N393 counters and thresholds
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The Advisor captures all the Frame Relay frames in the link and performs an
automatic study of all the possible DLCIs (1024). This application lets you to
track the most relevant information of each of the virtual channels in the
network. A complete network condition analysis is performed on all the PVCs
present on the link.
The DLCI Measurement displays both the CPE and the Network statistics:
Throughput in kbps
Frame Distribution
Byte Distribution
The following values are provided for both the Line (Network) side and the
Equipment (User) side.
Max., and inst., utilization (%)
Max., inst., and avg. throughput in kbps
Total octets (bytes)
Total frames/packets
Short frames/packets
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DLCI Statistics allows graphing the throughput of a particular PVC in the
network so you can visually determine traffic patterns. With this application,
you can isolate the traffic of a specific PVC from the rest of the link traffic.
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Network Vital Statistics provide real-time measures of network conditions to
present a statistical picture of what is happening on the network links. Working
simultaneously with decodes, filters and other measurements the Vital Statistics
feature interprets data traffic as it occurs. This feature can be used to identify
network problems or to assist you in optimizing the configuration on network
components and software. Vital Statistics are gathered in intervals of 1-second.
Values may also be logged to disk.
Values in the Vital Statistics display are presented in tabular form and are
cumulative from the start of a test. Instantaneous utilization is displayed in
graphical format for a quick look at overall usage of the network. The following
values are provided for both the Line (Network) side and the Equipment (User)
side:
Max., min., and avg. utilization (%)
Max., min., inst., and avg. throughput in kbps
Total octets (bytes)
Total frames/packets
Short frames/packets
Abort frames/packets
FCS errors
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Top Talkers
Top Talkers determines which IP and IPX users consume the most Frame Relay
bandwidth.
The following values are displayed:
Sorts the IP and IPX source and destination statistics
Traffic identified as DTE or DCE (CPE or Network)
Throughput in kbps
Frame rate and percentage (%) utilization
Samples from 2 seconds to 24 hours
Specified periods by hours, minutes and seconds
Updates measurement results every 2 seconds
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The Protocol Distribution application displays the traffic running in the
network and categorizes it by Network Layer, Transport Layer or Application
Layer.
The display contains a table showing utilization, frames (total), bytes (total),
frames/sec, and bytes/sec. The network protocols are sorted by the displayed
statistic.
The Protocol Distribution pie chart graph can be configured to display the
following parameters:
%Utilization
Frames
Bytes
Frame/Sec
Bytes/Sec
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Powerful Commentators follow state-based protocols and can provide
warnings and alerts when unusual message sequences are detected. This is an
expert analysis application that extracts LAN information from the Frame
Relay frame and performs an intelligent analysis that detects warning and
alarms of erroneous events in the user traffic.
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The Advisor provides the ability to decode correlated Frame Relay network
traffic with its enhanced decode view. Decodes can be configured to see:
Summary of the frame, detailed decode of the frame, and a hex representation
of the frames.
The analyzer decodes and displays the following fields and protocols:
DLCI, DE, FECN, BECN, E/A and FCS
Auto LMI detection and decoding for ANSI T1.617 Annex D, ITU-T Q.933
Annex A, original LMI
Consolidated Link Layer Management (CLLM) messages, found on DLCI 1007.
Multi-Protocol over Frame Relay (Network Layer)
The Frame Relay applications will decode the multi-protocol encapsulation
over Frame Relay automatically according to the RFC-1490, RFC-2427,
Ethertype or FRF.3.1, CLLM, and Annex G (X.25 over Frame Relay).
Voice over Frame Relay (VoFR) monitoring FRF.11
Committed Information Rate according to ANSI T1.606a
Double clicking on a field in the Detailed Pane of the decode Window will cause
the appropriate fields in the Hex decode pane to be inverse highlighted giving
the user greater analysis capabilities in the decode view.
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Decode View
The Advisor provides the ability to decode correlated Frame Relay network
traffic with its enhanced decode view. The decode view can be configured by
right clicking in the summary view. The decode view has a very user-friendly
one-line, one-line top, and multi-line read out in the summary view. It also
offers hex to detail mapping - by highlighting an element in the detailed view,
the corresponding hex element is highlighted in color in the Hex section of
the decodes. The reverse is also true by clicking hex.
The Advisor also has powerful, user-configurable 100ns resolution time-stamp
options as follows:
Delta shows the time interval between adjacent frames or displayed
filtered frames.
Relative shows the time difference between critical events and other
frames in the traffic flow; for example, if a ping is considered time-zero,
frames which arrived before or after will be time-stamped with their relative
corresponding arrival time;
Absolute shows events time stamped with date and time of day.
The decode view now also offers color mapping of the protocol layers in the
decode view; this allows each layer in the data flow to be easily identified, thus
simplifying protocol analysis.
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LAN over WAN, and LAN (over WAN) over ATM
Encapsulated LAN data is automatically extracted and decoded by the Advisor
including complex encapsulated protocols. For unique encapsulation schemes,
you can specify the offset as well. Nearly 300 decodes exist for layer 3 and
above; these are common to all underlying technologies (LAN, WAN and ATM).
The Advisor provides an off-line LAN Expert Analysis tool. The off-line LAN
Expert Analysis examines Ethernet, Fast Ethernet, Gigabit Ethernet, ATM or
WAN (HDLC or Frame Relay) encapsulated LAN frames on an Advisor or
personal PC without Advisor hardware.
The comprehensive set of protocol decodes include all of todays popular
Protocol Stacks:
TCP/IP SUN
AppleTalk XNS
Banyan Cisco
DECnet 3Com
IBM/SNA Microsoft LAN Manager
Novell H.323 series, T.38
ISO SIP, MGCP, SGCP, MEGACO
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The Advisor now offers real-time IP and WAN filtering at rates up to 155Mb/s
(up to DS3 for Frame Relay). This allows the user to isolate and analyze LAN
and Frame Relay traffic taking place on an ATM circuit or LAN traffic taking
place on a Frame Relay circuit.
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The real time filtering function provides application-level, LAN-centric
troubleshooting on their ATM or Frame Relay network, thus allowing them to
see specific traffic types that may be causing trouble on the network. The user
can even filter by IP source and/or destination address IP traffic that is
encapsulated in Frame Relay, which is, in turn, encapsulated in ATM. This
feature maximizes valuable buffer space for optimal data collection of targeted
LAN traffic since the filtering takes place before data capture.
In addition to capture filtering, which is performed in hardware, the Advisor is
able to gather counts of events such as cells or frames that meet the filtering
criteria. More details of these features are given in technology specific sections
in this specification.
Powerful display (post-capture) filtering and search functionality allows the
user to drill down further for troubleshooting purposes when post processing
data from capture buffer or file.
Capture Filters and Counters
Hardware counters and filters let you select frames to bring into the capture
buffer. The Advisor will capture every frame, no matter what the traffic level,
and that is exactly what you need.
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