EXFO IQS-8100 Series Transport Blazer for IQS-600 - Manual (Page 470)

Next-Generation Tabs
456 IQS-8100 Series Transport Blazer
GFP OH RX
Type Header
Note: See GFP OH TX on page 440 for PTI, PFI, EXI, and UPI possible values.
³
PTI (Payload Type Identifier): Displays the type of GFP client frame.
³
PFI (Payload Frame Check Sequence Indicator): Displays the Payload
FCS Indicator.
³
EXI (Extension Header Identifier): Displays the Extension Header
Identifier.
³
UPI (User Payload Identifier): Displays the User Payload Identifier.
³
tHEC (Type Header Error Control): Indicates the CRC-16 error control
code that protects the integrity of the contents of the type field by
enabling both single-bit error correction and multi-bit error detection.
Extension Header
Note: CID, Spare, and eHEC are only available when EXI from GFP Frame TX on
page 432 is set to Linear.
³
CID (Channel IDentifier): Displays the communication channel used by
the signal. Possible values are 00000000 through 11111111 (0 to 255).
³
Spare: Displays the extension header Spare field. Possible values are
00000000 through 11111111 (0 to 255).
³
eHEC (Type Header Error Control): Indicates the CRC-16 error control
code that protects the integrity of the contents of the extension header
by enabling both single-bit error correction (optional) and multi-bit
error detection.