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

## SYSLOG Details
- **Message**: Number of unicast Fowarding-Classes exceeded the maximum <variable>fc-uni-max-num</variable>
- **Help**: Libcos encountered an error in parsing CoS unicast FC
- **Description**: The class-of-service(CoS) library(Libcos) could not process the unicast forwarding-classes(FC) as the maximum number is exceeded.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: An internal software failure occurred.
- **Action**: Contact your technical support representative.
- **Attributes**: fc-uni-max-num
- **Facility**: ANY

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