Table 6-1. NIC Driver Parameters for Windows
Parameter | Function | Default | Range | Method to Configure | |
Name | Value | ||||
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CheckSumOf- | Bucket to enable, disable all | Enable | Disable | Windows Property | |
floadSupport | IP, TCP, UDP checksum |
| Enable | Pages for QLogic | |
| offload driver capabilities |
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| adapter, navigate to | |
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| Advanced tab or | |
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| QConvergeConsole CLI | |
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FlowControl | Enable or disable Flow | Rx Enable | Disable | Windows Property | |
| Control. Flow Control | Tx Enable | Rx Enable | Pages for QLogic | |
| enables adapters to gener- |
| Tx Enable | adapter, navigate to | |
| ate or respond to flow con- |
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| Advanced tab | |
| trol frames, which help |
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| |
| regulate network traffic |
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HeaderdataSplit | Enable or disable Header | Disable | Enable | Windows Property | |
| Data Split (HDS). HDS |
| Disable | Pages for QLogic | |
| splits the header informa- |
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| adapter, navigate to | |
| tion from an incoming |
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| Advanced tab or | |
| packet so that the CPU |
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| QConvergeConsole CLI | |
| does not have to process |
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| the whole packet, thus |
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| reducing CPU use. Win- |
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| dows Server 2008 only. |
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| Windows Property | |
IPChecksumOffl | IPv4 Checksum Offload | Rx Enable | Disable | ||
oadIPv4 | verifies the TCP/IP check- | Tx Enable | Rx Enabled | Pages for QLogic | |
| sum on received packets |
| Tx Enabled | adapter, navigate to | |
| (Rx) and computes the |
| Rx and Tx | Advanced tab or | |
| checksum on transmitted |
| Enable | QConvergeConsole CLI | |
| packets (Tx). Enabling this |
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| parameter can improve |
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| TCP/IP performance and |
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| reduce CPU use. With |
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| Offloading disabled, the |
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| operating system calculates |
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| and verifies the TCP/IP |
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| checksum. |
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