# [COSD_UNEXPECTED_FLAG_IN_IFD](https://apps.juniper.net/syslog-explorer/?msg=COSD_UNEXPECTED_FLAG_IN_IFD)

## SYSLOG Details
- **Message**: <variable>function-name</variable>:<variable>line-number</variable> : Class-of-service daemon getting unexpected flag in IFD <variable>interface-name</variable>, flags: 0x<variable>flag-value</variable>
- **Help**: COSD got unexpected flag in IFD
- **Description**: The Class-of-service(CoS) daemon received an unexpected flag in physical-interface(IFD). Expectation is the flag should not be set. But can happen on ISSU during configuration check, as new version of COSD is getting old version of IFD rtsock from old kernel.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: An internal software failure occurred.
- **Action**: Contact your technical support representative.
- **Attributes**: function-name
line-number
interface-name
flag-value
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_UNEXPECTED_FLAG_IN_IFD&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_UNEXPECTED_FLAG_IN_IFD&sw=Junos%20OS&rel=23.4R1)