H-Tile Ethernet Hard IP User Guide: For Intel® Stratix® 10 Devices

ID 683430
Date 1/18/2024
Public
Document Table of Contents

B.7.79. RX Frames with bad length/type field (upper 32 bits)

RX Frames with bad length/type field
Records the number of RX frames that arrived with a Length/Type field that was neither a length nor a type
  • L/T is considered to be a Length field if the value in the field is 16'd1500 or less
  • L/T is considered to be a Type field if the value in the field is 16'1536 or more
  • If a packet has a L/T field where the value is between 16'd1501 to 16'd1535 (inclusive), the L/T field is considered bad, and this counter is incremented
  • Note that if RX VLAN/SVLAN detection is turned on, it is the L/T field inside the VLAN/SVLAN header that is evaluated

Offset: 0x969

RX Frames with bad length/type field (upper 32 bits) Fields

Bit Name Description Access Reset
31:0 stats_pcnt16 Statistics word

4 bytes of an 8 byte EHIP Statistics

RO 0x0