LAN FLAGS
LAN_FLAGS is a dynamic bitmask system parameter used to enable features in the local area networks port drivers and support code. The default value for LAN_FLAGS is 0.
Bit Definitions
| Bit | Description |
|---|---|
| 0 | The default of zero indicates that ATM devices run in SONET mode. If set to 1, this bit indicates ATM devices run in SDH mode. |
| 1 | If set, this bit enables a subset of the ATM trace and debug messages in the LAN port drivers and support code. |
| 2 | If set, this bit enables all ATM trace and debug messages in the LAN port drivers and support code. |
| 3 | If set, this bit runs UNI 3.0 over all ATM adapters. (Auto-sensing of the ATM UNI version is enabled if both bit 3 and bit 4 are off (0).) |
| 4 | If set, this bit runs UNI 3.1 over all ATM adapters. (Auto-sensing of the ATM UNI version is enabled if both bit 3 and bit 4 are off (0).) |
| 5 | If set, disables auto-negotiation over all Gigabit Ethernet Adapters. |
| 6 | If set, enables the use of jumbo frames over all Gigabit Ethernet Adapters. |
| 7 | Reserved |
| 8 | If set, disables the use of flow control over all LAN adapters that support flow control. |
| 9 | Reserved |
| 10 | Reserved |
| 11 | If set, disables the logging of error log entries by LAN drivers. |
| 0 | If set, enables a fast timeout on transmit requests, usually between 1 and 1.2 seconds instead of 3 to 4 seconds, for most LAN drivers. |
| 0 | If set, transmits that are given to the LAN device and never completed by the device (transmit timeout condition) are completed with error status (SS$_ABORT) rather than success status (SS$_NORMAL). |