The syntax for the trace parameter in alter connection in Chapter 3, “Replication Server Commands” is incorrect.
The corrections:
Name of trace_value option is value.
Syntax
alter connection to data_server.database {... set trace [to] 'value'}
Parameters
trace
Allows ExpressConnect tracing at the DSI level.
value
A character string containing a new value for the option.
alter connection to data_server.database set trace to ''
An empty string disables ExpressConnect tracing values after the connection or when the Replication Server is restarted.