greReceiveWindow
From QA Cafe Support Wiki
| greReceiveWindow | The GRE receive window size for PPTP connections can be configured using the testvar greReceiveWindow. The default value is 10 packets. The window size must be greater than or equal to 1 and less than or equal to 65535. |
Values: decimal from 1 to 65535 | |
| Example: testvar greReceiveWindow 10 |