HP StorageWorks 2.12 Edge Switch - Manual (Page 86)

Monitoring and Managing the Switch
86 Edge Switch Element Manager User Guide
Statistics Description
The Statistics Values tables contain statistics in the following groups. To refresh
tables with the latest data, click the Refresh button on the upper right portion of
the Statistics Values panel, or click the port’s bar graph. Clear all counters for all
users using the Clear button.
Class 2 Statistics
The Class 2 Statistics table includes:
■ Received Frames—The number of Class 2 frames received by this port from
its attached port.
■ Transmitted Frames—The number of Class 2 frames transmitted by this port
to its attached port.
■ Busied Frames—The number of F_BSY frames generated by this F_Port
against Class 2 frames. This can occur if frames are received before the switch
completes initialization or if the switch is servicing so many requests that it
can not process a new request. The port generates frames if the switch is not
ready to accept commands. This may indicate temporary congestion.
■ Rejected Frames—The number of F_RJT frames generated by this F_Port
against Class 2 frames.
These frames usually occur because of attached device errors. The device is
expected to correct the error based on the reject code, then retry its request. If
the device is able to recover, there is no cause for concern. If not, further
troubleshooting may be necessary. There are no thresholds for this value.
Typically, this occurs because the destination is not available due to the
device’s action.
■ Four-Byte Words Rx—The number of four-byte words received.
■ Four-Byte Words Tx—The number of four-byte words transmitted.
Class 3 Statistics
The Class 3 Statistics table includes:
■ Received Frames—The number of Class 3 frames received by this port from
its attached port.
■ Transmitted Frames—The number of Class 3 frames transmitted by this port
to its attached port.