The "Cowra: XLP0 ECC error" is an error message indicating that there is an ECC (Error Checking and Correction) error on the XLP0 component. The Cowra XLP0 ECC error is an error message that may appear in the log messages of a firewall device. It is related to the error checking and correction (ECC) process on RLDRAM. The ECC process is responsible for error detection and recovery in the RLDRAM.

Jun 2 14:29:40.992 2020 abc Cowra: XLP0 ECC error, chA 3242721795 12610 chB 0 0, correctable 11108, uncorrectable 0 

Jun 2 19:26:38.670 2020 abc Cowra: XLP0 ECC error, chA 3242721795 322 chB 0 0, correctable 11110, uncorrectable 0 

Jun 2 23:09:29.678 2020 abc Cowra: XLP0 ECC error, chA 3242721795 4930 chB 0 0, correctable 11112, uncorrectable 0 

Jun 2 23:56:53.851 2020 abc Cowra: XLP0 ECC error, chA 3242721795 4162 chB 0 0, correctable 11114, uncorrectable 0 

Jun 3 02:09:59.768 2020 abc Cowra: XLP0 ECC error, chA 3242721795 4418 chB 0 0, correctable 11116, uncorrectable 0 

Jun 3 02:26:07.724 2020 abc Cowra: XLP0 ECC error, chA 3242721795 4162 chB 0 0, correctable 11118, uncorrectable 0 

Jun 3 10:38:13.066 2020 abc Cowra: XLP0 ECC error, chA 3242721795 9026 chB 0 0, correctable 11120, uncorrectable 0 

Jun 3 11:26:36.812 2020 abc Cowra: XLP0 ECC error, chA 3242721795 8514 chB 0 0, correctable 11122, uncorrectable 0 

Jun 3 11:57:52.104 2020 abc Cowra: XLP0 ECC error, chA 3242721795 4418 chB 0 0, correctable 11124, uncorrectable 0 

If the number of correctable and uncorrectable errors is the same in the ECC error message, it means that the errors being detected can actually be corrected and are immediately corrected as well.

In the above symptoms we see the correctable errors are more and these do not cause any service impact. Reboot of FPC is needed in MW to clear these errors.