[P4-dev] Include a variable field in a field_list?

Huynhtu Dang huynh.tu.dang at usi.ch
Thu Jun 30 11:34:03 EDT 2016


Dear all,

Can a variable field is included in a field_list to compute a checksum? For example, UDP checksum is computed using UDP header and payload. However, the payload is a variable field. If it doesn’t, then, in which cases variable fields are useful? 

Best,
Tu Dang


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