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CRC32C Protection in the Layer Below iSER
From section 5.1 of iSER draft: “when the RDMAExtensions key is negotiated to "Yes", the HeaderDigest and the DataDigest keys MUST be negotiated to "None" ... because ... the iWARP protocol suite provides a CRC32c-based error detection for all iWARP Messages”
Recent updates to the MPA draft renders the use of CRC optional
“Disabling of CRCs should only be done when it is clear that the connection through the network has data integrity at least as good as a CRC”
RDDP WG’s position is that all ULPs can assume CRC level or equivalent data protection
Proposed change: Add the explicit requirement that end-to-end CRC32C based error detection or equivalent be provided in a layer below iSER
PPT Version