# LIBDFWD_SOCK_OPT_RCVBUF_ERR

## Canonical Reference

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

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

## SYSLOG Details
- **Message**: failed to set recv buf size (<variable>error-message</variable>)
- **Help**: the receive buffer size for a socket was not configured
- **Description**: LIBDFWD uses sockets to communicate with the kernel, and it configures the size of the kernel buffer used for receiving messages through the socket. When LIBDFWD attempted to configure the buffer size, the kernel returned an error. The error string accompanying this log entry indicates the specific error.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: -
- **Action**: Contact your technical support representative.
- **Attributes**: error-message
- **Facility**: LOG_DAEMON

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