Taking into account that failures in both links and nodes are inevitable in a network, and that the fault-tolerant capacity of a network constitutes a crucial issue in parallel computing, this paper studies and presents analytical results concerning the hybrid fault-tolerant capability of crossed cubes, introduced by Efe [1].

Given that the paper is a letter, and thus, by its nature, has a limited length, it has a satisfactory structure (a section for conclusions is missing), with well-organized material, a good use of language, and the appropriate number and quality of references. A thorough understanding of the paper requires a basic background in crossed cubes. The paper is recommended to readers and researchers studying combinatorial optimization problems.