SMC Networks SMC7901WBRA2 B1 manual Status ARP Table

CHAPTER 4 Status Information

ARP Table

◆S (RS code word size in DMT farme) — Displays the number of valid data symbols included by the RS code word in the DMT frame.

◆D (interleaver depth) — Displays the actual depth of the interleaver used in the latency path in which the bearer channel is transported. Interleavers arrange data in a non-contiguous way in order to increase performance.

◆Delay (nsec) — Displays interleave delay in nano-seconds (nsec). Interleave delay applies only to the interleave (slow) channel and defines the mapping (relative spacing) between subsequent input bytes at the interleaver input and their placement in the bit stream at the interleaver output.

◆FEC — Displays forward error correction (FEC), a system of error control for data transmission, whereby the sender adds redundant data to its messages, also known as an error correction code.

◆CRC — Displays the CRC (cyclic redunancy check) - a type of function that takes as input a data stream of any length, and produces as output a value of a certain space, commonly a 32-bit integer.

◆Total ES — Displays the total error seconds, the number of second intervals during which there was one or more CRC anomalies, or one or more Loss of Signal (LOS) or Loss of Framing (LOF) defects.

◆Total SES — Displays the total severly errored seconds. The number of second intervals containing 18 or more CRC-8 anomalies, one or more Loss of Signal (LOS) defects, one or more Severely Errored Frame (SEF) defects, or one or more Loss of Power (LPR) defects.

◆Total UAS — Displays the total unavailable errored seconds, the number of seconds during which the ADSL transceiver is powered up but not available.

ARP TABLE

The ARP page displays IP address to MAC address mapping entries determined by the Address Resolution Protocol.

Figure 21: Status - ARP Table

– 55 –