# DFCD_DTCP_PROTO_CS_ADD_FAILED

## Canonical Reference

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

**Canonical URL:**  
https://apps.juniper.net/syslog-explorer/?msg=DFCD_DTCP_PROTO_CS_ADD_FAILED

## SYSLOG Details
- **Message**: Unable to add connection <variable>file-descriptor</variable> for flow-tap user <variable>username</variable>
- **Help**: DFCD could not add control source to CS database
- **Description**: DFCD adds control sources to CS database for every authorized flow-tap user who logs in. The error string accompanying this log entry indicates the specific error.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: CS add operation failed.
- **Action**: Contact your technical support representative.
- **Attributes**: file-descriptor
username
- **Facility**: LOG_DAEMON

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