Port Statistics Screen Fields - Cabletron Systems MMAC-Plus 9E312-12 Appendix

Port Statistics Screen Fields

PORT # (Read-only) - Indicates the current port for which statistics are displayed.
OCTETS (Read-only) - Displays the number of bytes transmitted and received.
PACKETS (Read-only) - Displays the number of frames transmitted and received.
TOTAL ERRORS (Read-only) - Displays the total number of errors on this port.
COLLISIONS (Read-only) - Displays the total number of collisions detected on this
port.
CRC/ALIGNMENT ERRORS (Read-only) - Displays the number of packets with bad
Cyclic Redundancy Checks (CRC) that have been received from the network. The
CRC is a 4-byte field in the data packet that ensures that the transmitted data that is
received is the same as the data that was originally sent. Alignment errors are due to
misaligned packets.
UNDERSIZE PACKETS (Read-only) - Displays the number of packets received
whose size was less than the minimum Ethernet frame size of 64 bytes, not including
preamble.
OVERSIZE PACKETS (Read-only) - Displays the number of packets received whose
size exceeded 1518 data bytes, not including preamble.
FRAGMENTS (Read-only) - Displays the total number of packets received that were
not an integral number of octets in length or that had a bad Frame Check Sequence
(FCS), and were less than 64 octets in length (excluding framing bits but including
FCS octets).
JABBERS (Read-only) - Displays the total number of packets received that were
longer than 1518 octets (excluding framing bits, but including Frame Check Sequence
(FCS) octets), and were not an integral number of octets in length or had a bad Frame
Check Sequence.
LINK STATUS (Read-only) - Displays one of the following values:
• Link
• No Link
• N/A
PORT TYPE (Read-only) - Displays one of the following values:
• AUI
• BNC
• EPIM-x
• MMF SMA
• MMF ST
• RJ45
• RJ71
• SMF ST
Appendix
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