Specifications

9-9
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 9 Viewing and Responding to Alarms
Displaying Alarm Reports in the CLI
For more information on these commands, refer to the Cisco MGX 8850, MGX 8950, and MGX 8830
Command Reference (PXM45/B).
dspxbarerrcnt Displays the following types of slot-link errors:
• Loss of synchronization between the ASIC and the queuing circuitry
on the service module. The synchronization in this case applies to
the timing of the internal switching frames (Sframes). Loss of
synchronization is a very serious error.
• Receiver code violations (Rx Cv column in the display).
• Receiver disparity errors (Rx Disp column in the display). A
disparity error is a summary of five ASIC-specific alarms.
• Transmitter parity errors.
• CRC failures for the header or the payload of the 60-byte Sframe.
• Failures to remap between slots as needed or excessive remapping
between slots (Slot Remap and Slot Recur columns in the display).
• Parity errors in back-pressure messages.
dspxbarerrthresh Displays the thresholds for crossbar errors. The following items that
make up a threshold are as follows:
• Duration of the errored state
• Number of errors during that time period
• Upper and lower error counts within a particular alarm severity
(minor, major, and critical)
Thresholds are displayed for the following errors:
• Loss of synchronization (LossOfSync)
• Transceiver error (TranscieverErr)
• DisparityErr—an accumulation of five ASIC-level errors
• ParityErr—a parity error in the switch frame as a whole
• HeaderCRCErr—a CRC error for the switch frame header
• PayloadCRCErr—a CRC error for the switch frame payload
• RemapTwiceErr
• RemapRecurrErr
• Backpressure parity error (B.P.ParityErr)—a parity error in the
signaling for backpressure
dspxbarmgmt Displays details about the load sharing configuration for the node.
dspxbarstatus Displays status of each slot for a crossbar.
Table 9-4 Crossbar Alarm Troubleshooting Commands (continued)
Command Purpose