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

## SYSLOG Details
- **Message**: MCAST FMBB knobs configured. These knobs will not take effect as these are deprecated
- **Help**: MCAST FMBB knobs configured.
- **Description**: MCAST FMBB knobs configured. These knobs will not take effect as these are deprecated.
- **Type**: Event: This message reports an event, not an error
- **Severity**: error
- **Cause**: -
- **Action**: -
- **Attributes**: -
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=RPD_RT_MCAST_FMBB&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=RPD_RT_MCAST_FMBB&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=RPD_RT_MCAST_FMBB&sw=Junos%20OS&rel=25.2R2)
- [Junos OS Evolved 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=RPD_RT_MCAST_FMBB&sw=Junos%20OS%20Evolved&rel=26.2R1)
- [Junos OS Evolved 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=RPD_RT_MCAST_FMBB&sw=Junos%20OS%20Evolved&rel=25.4R1)
- [Junos OS Evolved 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=RPD_RT_MCAST_FMBB&sw=Junos%20OS%20Evolved&rel=25.2R2)