HP BL25/35/45p HP ProLiant Network Adapter Software and Configuration Guide - Page 40

Property, Parameter, Receive TCP/UDP

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Property Max Jumbo Buffers Maximum Receive Buffers QoS Packet Tagging Receive IP Checksum Offload Receive-side Scaling Receive TCP/UDP Checksum Offload Status Ring Size Transmit IP Checksum Offload Transmit Ring Size Transmit TCP/UDP Checksum Offload Parameter Specifies the number of 8K (jumbo) buffers for receive, in addition to the standard frame size buffers specified by "Max Receive Buffers." This is a separate pool of buffers used by the network adapter when the incoming frame is more than the standard frame size. • Default: 4096 • Value: 1024/2048/4096/8192 If the MaxFrameSize is set to 1500, the Max Jumbo Buffers parameter is ignored. Sets the number of packet buffers on the receive (DMA memory and stack). Size of each buffer is 1536 bytes. • Default: 8192 • Value: 1024/2048/4096/8192/16384 Specifies support for 802.1p (priority) tagging or 802.1q (Vlan) tagging by the Ethernet controller on a per-packet basis. • Default: Enabled • Values: Enabled/Disabled Enables the receive IP checksum offload. • Default: Enabled • Values: Enabled/Disabled Enables dynamic load balancing of incoming traffic across CPUs. Enables the receive TCP and receive UDP checksum offload. • Default: Enabled • Values: Enabled/Disabled A descriptor ring size (queue size) for the status given by the network adapter to the driver. Setting this value too low will impact the throughput because the network adapter will start dropping packets. This parameter only affects receive operations and does not affect transmit operations. • Default: 8192 • Value: 1024/2048/4096/8192/16384/32768 Enables the transmit IP checksum offload. • Default: Enabled • Values: Enabled/Disabled A descriptor ring size (queue size) for the transmit commands given by the driver to the network adapter. It describes how many transmit operations can be given by the host/driver to the network adapter at one time without overflowing the transmit queue. Each of the entries in this queue describes one transmit/send operation by the driver. • Default: 1024 • Value: 1024/2048 Enables the transmit TCP and transmit UDP checksum offload. • Default: Enabled • Values: Enabled/Disabled Configuration and diagnostics 40

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Configuration and diagnostics 40
Property
Parameter
Max Jumbo Buffers
Specifies the number of 8K (jumbo) buffers for receive, in addition to the standard
frame size buffers specified by "Max Receive Buffers." This is a separate pool of
buffers used by the network adapter when the incoming frame is more than the
standard frame size.
•
Default: 4096
•
Value: 1024/2048/4096/8192
If the MaxFrameSize is set to 1500, the Max Jumbo Buffers parameter is ignored.
Maximum Receive
Buffers
Sets the number of packet buffers on the receive (DMA memory and stack). Size of
each buffer is 1536 bytes.
•
Default: 8192
•
Value: 1024/2048/4096/8192/16384
QoS Packet Tagging
Specifies support for 802.1p (priority) tagging or 802.1q (Vlan) tagging by the
Ethernet controller on a per-packet basis.
•
Default: Enabled
•
Values: Enabled/Disabled
Receive IP Checksum
Offload
Enables the receive IP checksum offload.
•
Default: Enabled
•
Values: Enabled/Disabled
Receive-side Scaling
Enables dynamic load balancing of incoming traffic across CPUs.
Receive TCP/UDP
Checksum Offload
Enables the receive TCP and receive UDP checksum offload.
•
Default: Enabled
•
Values: Enabled/Disabled
Status Ring Size
A descriptor ring size (queue size) for the status given by the network adapter to the
driver. Setting this value too low will impact the throughput because the network
adapter will start dropping packets. This parameter only affects receive operations
and does not affect transmit operations.
•
Default: 8192
•
Value: 1024/2048/4096/8192/16384/32768
Transmit IP Checksum
Offload
Enables the transmit IP checksum offload.
•
Default: Enabled
•
Values: Enabled/Disabled
Transmit Ring Size
A descriptor ring size (queue size) for the transmit commands given by the driver to
the network adapter. It describes how many transmit operations can be given by the
host/driver to the network adapter at one time without overflowing the transmit
queue. Each of the entries in this queue describes one transmit/send operation by
the driver.
•
Default: 1024
•
Value: 1024/2048
Transmit TCP/UDP
Checksum Offload
Enables the transmit TCP and transmit UDP checksum offload.
•
Default: Enabled
•
Values: Enabled/Disabled