Error message that you are seeing POLARIS-DFC3-4-ERR_INTRPT: Interrupt TF_INT:FI_DATA_INT
occurring in Polaris Layer 3 ASIC
Explanation This message indicates that an error in the Layer 3 forwarding ASIC occurred;
[chars] is the error description.
Action Enter the show earl status command on the consoles of the switch supervisor engine and any DFC-enabled modules. Basically, these are transient conditions caused by some traffic passing through the ASIC and the software is just reporting that condition. It may happen once in a while. It is mainly informational.
Basically TF_INT is interrupt status register used to indicate an error condition, and FI_DATA_INT specify the error condition was caused by TCAM SSRAM Parity Error. So basically every time the software try to recover from such state, it will generate the
syslog messages you seen to indicate the condition, as well as increase the counter under 'sh earl status'.
MLSCEF-DFC3-7-SHADOW_SSRAM_INCONSISTENCY: FIB SSRAM Mismatch for Index:
The error message you are seeing below is a new feature in the software and is documented
in CSCdz33539. This fix adds SSRAM consistency checker. It will verify the h/w SSRAM at regular intervals with the shadow FIB SSRAM. In case of any incosistencty, the message will be logged and the SSRAM data will be corrected.
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdz33539
It is ok to see these messages occasionally. But if you are seeing it over and over, I suggest that you open a TAC Service request
