IBM TotalStorage SAN140M Installation And Service Manual page 200

168 SAN140M Installation and Service Manual
indicator on each bar graph (high-water mark) remains at the highest
level reached since the port was set online. In addition, the following
statistical information appears:
• Class 2 Statistics - These statistics include the number of 4-byte
words transmitted and received, and the number of Class 2
frames transmitted, received, busied, or rejected.
• Class 3 Statistics - These statistics include the number of 4-byte
words transmitted and received, and the number of Class 3
frames transmitted, received, or discarded.
• Error Statistics - These statistics include the number of link
failures; synchronization and signal losses; discarded frames;
invalid transmission words; primitive sequence, CRC, delimiter,
and address identification errors; and short frames.
• Operational Statistics - These statistics include the number of
offline sequences transmitted and received; and link resets
transmitted and received.
• Traffic Statistics - These statistics include port transmit and
receive values for frames, four-byte words, and link utilization
percentage. The number of traffic flows rerouted to or from an ISL
due to congestion is also reported.