| Member | Description |
|---|---|
| Always | Always use line mode. |
| Echo | Use line mode when the host tells Reflection to do the echoing. |
| EchoSGA | Use line mode for Echo or SGA. |
| Never | Doesn't use line mode. |
| RFC | Negotiate line mode use when connected to a host that supports line mode. |
| SGA | Use line mode when the host does not suppress Go Ahead. |