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

## SYSLOG Details
- **Message**: Interface <variable>interface-name</variable> already has classifier mapped and supports only one among DSCP/DSCP-IPv6/IPPrec. Skipping defaults
- **Help**: Stacking classifier on the interface is not supported
- **Description**: Interface does not support both DSCP and DSCP-IPV6 classifier attached at the same time. When attached a classifier to the interface it checks for already attached classifiers on the interface and supports either one among DSCP/DSCP-IPv6/IPPrec classifiers. The default classifiers are skipped.
- **Type**: Error: An error occurred
- **Severity**: error
- **Cause**: Either one among DSCP/DSCP-IPv6/IPPrec classifiers is supported
- **Action**: Remove the newly added classifier configuration
- **Attributes**: interface-name
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=COSD_CLASSIFIER_STACKING_NOT_SUPPORTED&sw=Junos%20OS&rel=22.2R1)