Remote error indication

FEBE information and definition

An error detected by extracting the 4-bit FEBE field from the path status byte (G1). The legal range for the 4-bit field is between 0000 and 1000, representing zero to eight errors. Any other value is interpreted as zero errors.

The DS-3 M-frame uses P bits to check the line parity. The M-subframe uses C bits in a format called C-bit parity, which copies the result of the P bits at the source and checks the result at the destination. An ATM interface reports detected C-bit parity errors back to the source via a far-end block error (FEBE).

An indication sent to a transmitting node that a flawed block has been detected at the receiving node. (DS3) A FEBE in C-bit parity is a parity violation detected at the far-end terminal and transmitted back to the near-end terminal.

A maintenance cell indicates that an error occurred with a data block at the far end of the link. This cell then sends a message back to the near end.