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In this paper, we consider to apply a joint defragmentation (DF) of spectrum and computing resources in the inter-datacenter (inter-DC) networks built over elastic optical infrastructure based on the optical orthogonal frequency-division multiplexing (O-OFDM) technology. We propose joint DF algorithms that consist of a request selection strategy to select active requests for reconfiguring and an anycast-based DF routing and spectrum assignment (DF-RSA) to reconfigure the selected requests. Fordoi:10.1109/icc.2014.6883828 dblp:conf/icc/LiuZZZ14 fatcat:34oi4yzllvc5npfcpdm6okor3a