Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tracking Network Events with Write Optimized Data Structures: The Design
  and Implementation of TWIAD: The Write-Optimized IP Address Database   Access to network traffic records is an integral part of recognizing and
addressing network security breaches. Even with the increasing sophistication
of network attacks, basic network events such as connections between two IP
addresses play an important role in any network defense. Given the duration of
current attacks, long-term data archival is critical but typically very little
of the data is ever accessed. Previous work has provided tools and identified
the need to trace connections. However, traditional databases raise performance
concerns as they are optimized for querying rather than ingestion.
  The study of write-optimized data structures (WODS) is a new and growing
field that provides a novel approach to traditional storage structures (e.g.,
B-trees). WODS trade minor degradations in query performance for significant
gains in the ability to quickly insert more data elements, typically on the
order of 10 to 100 times more inserts per second. These efficient,
out-of-memory data structures can play a critical role in enabling robust,
long-term tracking of network events.
  In this paper, we present TWIAD, the Write-optimized IP Address Database.
TWIAD uses a write-optimized B-tree known as a B {\epsilon} tree to track all
IP address connections in a network traffic stream. Our initial implementation
focuses on utilizing lower cost hardware, demonstrating that basic long-term
tracking can be done without advanced equipment. We tested TWIAD on a modest
desktop system and showed a sustained ingestion rate of about 20,000 inserts
per second.

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The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: plasm-ph
2
The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
3
The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg