Preventing session table explosion in packet inspection computers

Hyogon Kim, Jin Ho Kim, Inhye Kang, Saewoong Bahk

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


In this paper, we first show that various network attacks can cause fatal inflation of dynamic memory usage on packet processing computers. Considering Transmission Control Protocol (TCP) is utilized by most of these attacks as well as legitimate traffic, we propose a parsimonious memory management guideline based on the design of the TCP and the analysis of real-life Internet traces. In particular, we demonstrate that, for all practical purposes, one should not allocate memory for an embryonic TCP connection with roughly more than 10 seconds of inactivity.

Original languageEnglish
Pages (from-to)238-240
Number of pages3
JournalIEEE Transactions on Computers
Issue number2
StatePublished - Feb 2005


  • Memory management
  • Network monitoring
  • Packet inspection
  • TCP
  • Timeout


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