A higher ITR also means the driver has more latency in handling packets. Generate The adapter generates a flow control frame when its receive queue reaches a pre-defined limit. Windows Server R2 Windows Server Having a problem logging in? Check your switch documentation for the correct switch configuration.
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Routing, network cards, OSI, etc. If transmit performance is not an issue, use the default setting.
What distribution of Linux are you using? Jumbo frames and jumbo packets notes.
You might choose to increase the number of Transmit Descriptors inhel you notice a problem with transmit performance. Defines the number of Transmit Descriptors.
If large packets make up the majority of traffic and more latency can be tolerated, Jumbo frames can reduce CPU utilization and improve wire efficiency. Note 10/10 higher ITR also means the driver has more latency in handling packets.
Automatically set to On or Off depending on speed and adapter type when the driver is installed. Performance options – Transmit Descriptors or Transmit buffers. Changing this setting can improve network performance on certain network and system configurations. Off The adapter cannot send or receive flow control frames. Allows the adapter to compute the IP checksum of transmitted packets. Regards P Last edited by sukmannava; at When this setting is disabled, the adapter cannot tag outgoing packets with This setting has no effect if your system has only one processing unit.
Find More Posts by asymptote. Welcome to the most active Linux Forum on the web. Note Changing this setting may cause a momentary loss of connectivity. Click the New button.
How to Manually Install Intel® Network Adapter Drivers in Windows*
Are you new to LinuxQuestions. We appreciate all feedback, but cannot reply or give product support. They hope these examples untel help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. With this setting, the CPU utilization may be higher. Four or more queues are used for applications that demand high transaction rates such as web server based applications.
Jumbo frames jumbo packets Enables or disables Jumbo frame capability. Enables or disables Jumbo frame capability. Large send offload Enables the adapter to offload the task of segmenting TCP messages into valid Ethernet frames. When you use a higher ITR setting, the interrupt rate is lower, and the result is better system performance.
Driver does not wait for Auto Negotiation On: With Offloading disabled, the operating system verifies the IP checksum. Two queues are used when good throughput and low CPU utilization are required.
Downloads for Intel® Gigabit Ethernet Controller
The issue can also occur in a Forced Slave to Forced Slave mode. Notes Not all adapters support all RSS queue settings.
But it did not work. Note For adapters to benefit from this feature, link partners must support flow control frames. The adapter also uses fewer Platforn resources.