EXFO FTB/IQS-85100G Packet Blazer for FTB-500/IQS-600 - Manual (Page 219)

Test Results
Packet Blazer 209
GFP-F/GFP-T

Reserved PTI indicates the received client data and management
frames with a payload type identifier different of 000 and 100 without
uncorrectable cHEC, tHEC, and eHEC, and pFCS errors. Possible rate
units are Frames (default), or Bytes per second.

Reserved PLI indicates the number of reserved control frames (PLI=1,
2, or 3 while in Synchronization state) received.

Invalid indicates the number of received frames corresponding to at
least one of the following conditions:
EXI=0000 while PFI=1 and PLI <8
EXI=0001 while PFI=0 and PLI <8
EXI=0001 while PFI=1 and PLI<12

Discarded indicates the number of received frames with
uncorrectable tHEC, eHEC errors, or Invalid Frames.

Total indicates the received frames including Idle, Client Data, Client
Management, and frames with a reserved PTI. Possible rate units are
Frames (default), or Bytes per second.
RX Mismatch

PFI (Payload Frame Check Sequence Identifier) indicates the number
of frames with PFI field not matching the expected PFI.

EXI (Extension Header Identifier) indicates the number of frames with
EXI field not matching the expected EXI.

UPI (User Payload Identifier) indicates the number of frames UPI field
not matching the expected UPI.

CID (Channel IDentifier), only available when EXI is et to Linear,
indicates the number of frames CID field not matching the expected
CID.
Note: For expected values, refer to GFP-F/GFP-T on page 90 for more information.