This counter tracks packets output by this specific module that were found to have crypto errors after processing, since the last reboot. This is the per-module version of the chassis-wide error tracking, letting an admin pin a rising global error rate to one specific piece of hardware rather than treating it as a systemic issue affecting every module. If ccaGlobalOutErrPkts is climbing chassis-wide but only one module's error count accounts for nearly all of it, that isolates the problem to a single faulty accelerator rather than a broader firmware or configuration issue.