Cisco ISRs have a potential software bug which causes them to misreport interface packet statistics via SNMP, resulting in inaccurate dashboard reporting. This applies to all devices running software version 15.1(4)M1 to 15.1(4)M5.
If your device is experiencing this issue, the recommendation is to upgrade your software to any version above 15.1(4)M5 to avoid reporting on potentially inaccurate SNMP data.
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