Chapter 11 Statistics
FMG3010/3015-R20A User’s Guide
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Broadcast
Packets Sent
This indicates the number of broadcast packets transmitted.
Broadcast
Packets
Received
This indicates the number of broadcast packets received.
FEC Errors
This indicates the number of FEC (Forward Error Correction) errors on the fiber connection.
FEC is a technique to control errors in packets and correct errors without transmitting the packets
again. FEC adds redundant information in the packets, so the receivers can identify and correct
the errors in the packets.
HEC Errors
This indicates the number of HEC (Header Error Control) errors on the fiber connection.
HEC is a technique to detect and correct errors in the headers of a cell. If there’s a single-bit
error, HEC will detect and correct it. If there’s a two-bit error, HEC can only detect the error, and
the cell containing a two-bit error will be dropped. If errors occur in more than two bits, HEC
neither detect nor correct the errors.
Packets
Dropped
This indicates the number of packets dropped.
Pause Packets
Sent
This field shows the number of 802.3x pause packets transmitted.
IEEE802.3x flow control is used in full duplex mode to send a pause signal to the sending port,
causing it to temporarily stop sending signals when the receiving port memory buffers fill.
Pause Packets
Received
This field shows the number of 802.3x pause packets received.
IEEE802.3x flow control is used in full duplex mode to send a pause signal to the sending port,
causing it to temporarily stop sending signals when the receiving port memory buffers fill.
Table 16 Statistics > Fiber (continued)
LABEL
DESCRIPTION
