automatic test packet generation

Automatic Test Packet Generation
Networks are getting larger and more complex, yet administrators rely on rudimentary tools such
as and to debug problems. We propose an automated and systematic approach for testing and
debugging networks called “Automatic Test Packet Generation” (ATPG). ATPG reads router
configurations and generates a device- independent model. The model is used to generate a
minimum set of test packets to (minimally) exercise every link in the network or (maximally)
exercise every rule in the network. Test packets are sent periodically, and detected failures
trigger a separate mechanism to localize the fault. ATPG can detect both functional (e.g.,
incorrect firewall rule) and performance problems (e.g., congested queue). ATPG complements
but goes beyond earlier work in static checking (which cannot detect liveness or performance
faults) or fault localization (which only localize faults given liveness results). We describe our
prototype ATPG implementation and results on two real-world data sets: Stanford University’s
backbone network and Internet2. We find that a small number of test packets suffices to test all
rules in these networks: For example, 4000 packets can cover all rules in Stanford backbone
network, while 54 are enough to cover all links. Sending 4000 test packets 10 times per second
consumes less than 1% of link capacity. ATPG code and the datasets are publicly available.
 Testing liveness of a network is a fundamental problem for ISPs and large data center
operators. Sending probes between every pair of edge ports is neither exhaustive nor
scalable . It suffices to find a minimal set of end-to-end packets that traverse each link.
However, doing this requires a way of abstracting across device specific configuration
files, generating headers and the links they reach, and finally determining a minimum set
of test packets (Min-Set-Cover).
 To check enforcing consistency between policy and the configuration.
DISADVANTAGES OF EXISTING SYSTEM:
Contact: 9703109334, 9533694296
ABSTRACT:
EXISTING SYSTEM:
Email id: academicliveprojects@gmail.com, www.logicsystems.org.in

 Not designed to identify liveness failures, bugs router hardware or software, or
performance problems.
 The two most common causes of network failure are hardware failures and software
bugs, and that problems manifest themselves both as reachability failures and
throughput/latency degradation.
 Automatic Test Packet Generation (ATPG) framework that automatically generates a
minimal set of packets to test the liveness of the underlying topology and the congruence
between data plane state and configuration specifications. The tool can also automatically
generate packets to test performance assertions such as packet latency.
 It can also be specialized to generate a minimal set of packets that merely test every link
ADVANTAGES OF PROPOSED SYSTEM:
 A survey of network operators revealing common failures and root causes.
 A test packet generation algorithm.
 A fault localization algorithm to isolate faulty devices and rules.
 ATPG use cases for functional and performance testing.
 Evaluation of a prototype ATPG system using rule sets collected from the Stanford and
Contact: 9703109334, 9533694296
PROPOSED SYSTEM:
for network liveness.
Internet2 backbones.

SYSTEM ARCHITECTURE:
SYSTEM REQUIREMENTS:
HARDWARE REQUIREMENTS:
 System : Pentium IV 2.4 GHz.
 Hard Disk : 40 GB.
 Floppy Drive : 1.44 Mb.
 Monitor : 15 VGA Colour.
 Mouse : Logitech.
 Ram : 512 Mb.
SOFTWARE REQUIREMENTS:
 Operating system : Windows XP/7.
 Coding Language : JAVA/J2EE
 IDE : Netbeans 7.4
 Database : MYSQL
Contact: 9703109334, 9533694296

Hongyi Zeng, Peyman Kazemian,George Varghese,and N ick McKeown,“Automatic Test
Packet Generation”,VOL. 22, NO. 2, APRIL 2014.
Contact: 9703109334, 9533694296
REFERENCE:

automatic test packet generation

More Related Content

What's hot (18)

Similar to automatic test packet generation (20)

More from swathi78 (20)

Recently uploaded (20)

automatic test packet generation