This article explains that XQ Chip will report a Major Alarm whenever there is a CRC error on HSL2 link between the XQCHIP and the XMCHIP
When CRC errors detected over the HSL2 link between the XQCHIP and the XMCHIP, the following syslog message will be reported. CRC errors on these HSL2 links causes service impact and hence the CMerror severity is major here.
Nov 22 02:53:42 JTAC_lab_RE0 fpc8 Error: /fpc/8/pfe/0/cm/0/XQCHIP(46)/0/XQ_CMERROR_XMIO_HSL2_MAJOR_CRC_ERR (0x80384), scope: pfe, category: functional, severity: major, module: XQCHIP(46), type: XQCHIP HSL2 MAJOR_CRC_ERROR
Nov 22 02:53:43 JTAC_lab_RE0 re1 JTAC_lab_RE1 eventd: sendto
Nov 22 02:53:43 JTAC_lab_RE0 fpc8 Performing action log for error /fpc/8/pfe/0/cm/0/XQCHIP(46)/0/XQ_CMERROR_XMIO_HSL2_MAJOR_CRC_ERR (0x80384) in module: XQCHIP(46) with scope: pfe category: functional level: major
Nov 22 02:53:43 JTAC_lab_RE0 fpc8 Performing action get-state for error /fpc/8/pfe/0/cm/0/XQCHIP(46)/0/XQ_CMERROR_XMIO_HSL2_MAJOR_CRC_ERR (0x80384) in module: XQCHIP(46) with scope: pfe category: functional level: major
Nov 22 02:53:49 JTAC_lab_RE0 fpc8 Performing action cmalarm for error /fpc/8/pfe/0/cm/0/XQCHIP(46)/0/XQ_CMERROR_XMIO_HSL2_MAJOR_CRC_ERR (0x80384) in module: XQCHIP(46) with scope: pfe category: functional level: major
Nov 22 02:53:49 JTAC_lab_RE0 alarmd[19889]: Alarm set: FPC color=RED, class=CHASSIS, reason=FPC 8 Major Errors
Nov 22 02:53:49 JTAC_lab_RE0 craftd[19184]: Major alarm set, FPC 8 Major Errors
Nov 22 02:53:49 JTAC_lab_RE0 fpc8 Cmerror Op Set: XQCHIP(46): CRC Errors:XQCHIP(46):0 on hsl2 rx channel id 2
To verify if the errors are increasing, login to the PFE shell and obtain the HSL2 statistics of the FPC (the output below was shortened):
NEO> start shell pfe network fpc8 RMPC8(NEO)# show hsl2 statistics
Cell Received (last) CRC Errors (last)
------------------------------------------------------
XQCHIP(46) channel statistics :
XQCHIP(46)-chan-rx-0 <= XMCHIP(0)-chan-tx-141 4753823582227799 (56928547) 0 (0)
XQCHIP(46)-chan-rx-2 <= XMCHIP(1)-chan-tx-141 4753823582213630 (56767637) 1 (0) <<<<<
This looks to be a transient h/w issue and restart of the FPC will clear the issue.