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We study the performance of the fragment-marking-based probabilistic packet marking (PPM) for the IP traceback. In the fragment-marking-based PPM, each router splits its IPaddress or its hash value into multiple fragments and, in the case of marking, it randomly chooses one of fragments to write into the Identification field of a packet to forward. In the fragment marking, the Identification field is partitioned into three small fields; a b id -bit field (fragment-ID field) storing the index of fragments, a b d -bit field (distance field) storing the hop distance between the victim to the marking router, and a (16b idb d )-bit field (fragment field) storing a fragment. In this paper, we theoretically investigate the dependence of the performance of the fragment-marking-based PPM on parameters including b id and b d . In particular, we derive explicit representations of the false positive and negative ratios of the fragment marking, which are expressed by b d , b id , and some other parameters. Based on the derived representations, we study how to select parameter values to have better performance of the fragment marking.

Author

Shigeo Shioda

Publisher

ACM Press

Published

2009

Language

EN