HP 441877-00F - Manual (Page 40)

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