Error Statistics - HP 316095-B21 - StorageWorks Edge Switch 2/24 User Manual

Monitoring and Managing the Switch

Error Statistics

Port errors indicate that a port is not operating correctly. Use this data to isolate
problems with port and link operations. The statistics in this table include:
• Link failures
A link failure was recorded in response to a not operational sequence (NOS),
protocol timeout, or port failure. At the Hardware View, a yellow triangle
appears to indicate a link incident, or a blinking red and yellow diamond appears
to indicate a port failure.
• Sync losses
A loss of synchronization was detected because the attached device was reset or
disconnected from the port. At the Hardware View, a yellow triangle appears to
indicate a link incident.
• Signal losses
A loss of signal was detected because the attached device was reset or
disconnected from the port. At the Hardware View, a yellow triangle appears to
indicate a link incident.
• Primitive sequence errors
An incorrect primitive sequence was received from the attached device, indicating
a Fibre Channel link-level protocol violation. At the Hardware View, a yellow
triangle appears to indicate a link incident.
• Discarded frames
A received frame could not be routed and was discarded because the frame timed
out (insufficient buffer-to-buffer credit) or the destination device was not logged
into the switch.
• Invalid transmission words
The number of times that the switch detected invalid transmission words from the
attached device. This indicates that a frame or primitive sequence arrived at the
switch's port corrupted. This corruption can be due to the attached device
performing a reset, plugging or unplugging the link, bad optics at either end of the
cable, bad cable, or a dirty or poor connection. Moving the connection around or
replacing cables can isolate the problem.
2–32 edge switch 2/24 product manager user guide