Introduction to Ascp 4
Ascp 4 is optimized for sending extremely large sets of files (thousands and more small files in a single session).
Note: Ascp 4 also supports data and video streaming, but this capability is only provided
with the IBM Aspera Streaming product. For information about Ascp 4 streaming, see the
IBM Aspera Streaming for Video User Guide.
While Ascp 4 is a command-line utility, you can also use it from the GUI if you replace the ascp binary with the ascp4 binary. For detailed information, see Using Ascp 4 from the GUI.
Required Configuration for Multicast-to-Multicast Streaming
The transfer user who authenticates the data multicast transfer must have no docroot configured in aspera.conf. A file restriction can be set instead to restrict access.
Run the following command to unset a docroot and set a file restriction:
# asconfigurator -x "set_user_data;user_name,username;absolute,AS_NULL;file_restriction,|restriction"The restriction can be set to allow all access (*) or limited by protocol, hostname or path:
| Restriction | Format Example |
|---|---|
| By protocol | udp://* tcp://* |
| By protocol and hostname | udp://hostname* |
| By protocol, hostname, and port | tcp://hostname:5000* |