Cisco MGX 8850 Command Reference Manual page 753

Routing switch

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Troubleshooting Commands

Display the severity of crossbar alarms. On the card in slot 7, crossbars 1 and 2 show errors. In such a

case as two crossbars showing major errors, a card in a slot rather than a switch ASIC may be at fault.

Therefore, you could execute dspcds to see if service module has an alarm or dspxbarerrcnt for switch

ASICs 1 and 2 to see if each ASIC is showing similar data for the same card slot. You could also execute

dspcdalm on the PXM45.

MGX8850.7.PXM.a > dspxbaralm

Subsequent execution of dspxbarerrcnt shows the slot number (or link) and types of errors.

Note the large number of errors in slot 12. Many of the errors are parity or CRC related,

but the one error that is most serious is loss of sync. With a loss if sync between the

service module and the switching fabric, many other, comparatively less significant errors

are possible.

MGX8850.7.PXM.a > dspxbarerrcnt 7 2

Crossbar Slot No: 7

Frame Tick Error: 0

Frame Lock Error: 0

ACP Illegal Address Error: 0

Note: for big error counter, suffix K(x1000) or M(x1000000) is used.

Release 2.0, Part Number 78-10467-04 Rev C0, October 2001

PXM45 CROSSBAR CURRENT ERROR COUNTERS

System Rev: 02.00

System Rev: 02.00

Switch ASIC No: 2

System Rev: 02.00

Cisco MGX 8850 Routing Switch Command Reference

Aug. 06, 2000 17:46:15 GMT

Node Alarm: CRITICAL

Aug. 06, 2000 17:47:53 GMT

Node Alarm: CRITICAL

Aug. 06, 2000 17:47:53 GMT

Node Alarm: CRITICAL

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