A programmable network switch includes at least one pipeline including a packet parser configured to parse packets, and a plurality of ports for communication with network devices including a plurality of Data Storage Devices (DSDs). A packet comprising a write command is received to store data in a DSD of the plurality of DSDs, and an identifier generated for the data is compared to a plurality of identifiers generated for data stored in the plurality of DSDs. It is determined whether to send the write command to store the data to the DSD based on whether the generated identifier matches an identifier of the plurality of identifiers. In one aspect, the data to be stored for the write command is extracted from the packet using a pipeline of the programmable network switch, and at least a portion of the extracted data is used to generate the identifier for the data.
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