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Table 2 Description of ACK packet field

From: A cluster-based decentralized job dispatching for the large-scale cloud

Field name Bytes Description
ACK source address 4 The address of the node originating the
   acknowledgement
ACK destination address 4 The address of the node to which the
   acknowledgement is to be delivered
Execution time 2 The execution time of recently executed
   (finished) two jobs
Memory usage 2 The memory usage information of
   recently executed two jobs
Num. of waiting jobs 2 The number of jobs in the waiting
   queue
Options 2 Variable-length field