@Pattern(regexp = "(3164|5424)")
	public String getRfc() {
		return rfc;
	}
Captures options for the {@code syslog-udp} source module.

@author Gary Russell
@since 1.1
extensions/spring-xd-extension-syslog/src/main/java/org/springframework/xd/syslog/SyslogSourceOptionsMetadata.java