Advanced settings for HP NC-Series Broadcom 10 GbE Multifunction adapters

These advanced properties are available for HP NC-Series Broadcom 10 GbE Multifunction server adapters.

Property. These adapter properties only display if they are supported by the selected adapter. Some properties may not display if the adapter has FlexNIC enabled.

• Priority and VLAN. Enables or disables the ability to insert or remove the 802.1q tags for priority and VLAN.
  • Default = Priority & VLAN Enabled
  • Range = Priority & VLAN Disabled; Priority & VLAN Enabled; Priority Enabled; VLAN Enabled
• Jumbo Packet. The size, in bytes, of the largest supported Jumbo Packet (an Ethernet frame that is greater than 1514 bytes) that the hardware can support.
  • Default = 1514 Bytes
  • Range = 1324 Bytes; 1514 Bytes; 4088 Bytes; 9014 Bytes
• Flow Control. Specifies the type of flow control that is needed.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• IPv4 Checksum Offload. Describes whether the device enabled or disabled the calculation of IPv4 checksums.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• TCP Checksum Offload (IPv4). Describes whether the device enabled or disabled the calculation of TCP Checksum over IPv4 packets.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• TCP Checksum Offload (IPv6). Describes whether the device enabled or disabled the calculation of TCP checksum over IPv6 packets.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• UDP Checksum Offload (IPv4). Describes whether the device enabled or disabled the calculation of UDP checksum over IPv4 packets.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• UDP Checksum Offload (IPv6). Describes whether the device enabled or disabled the calculation of UDP checksum over IPv6 packets.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• TCP/UDP/IP Checksum Offload (IPv4). Describes whether the device enabled or disabled the calculation of TCP, UDP, or IP checksum over IPv4 packets. If this TCP/UDP/IP Checksum Offload (IPv4) property is present, it overrides and disables the TCP Checksum Offload (IPv4), UDP Checksum Offload (IPv4), and IPv4 Checksum Offload properties.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• TCP/UDP Checksum Offload (IPv6). Describes whether the device enabled or disabled the calculation of TCP or UDP checksum over IPv6 packets. This property overrides the TCP Checksum Offload (IPv6) and UDP Checksum Offload (IPv6) properties. If TCP/UDP Checksum Offload (IPv6) is present, TCP Checksum Offload (IPv6) and UDP Checksum Offload (IPv6) properties are disabled.
  • Default = Rx/Tx Enable
  • Range = Disable; Tx Enable; Rx Enable; Rx/Tx Enable
• Transmit Buffers. The size, in bytes, of the transmit buffers that the hardware can support. This size is hardware-dependent and can include data buffers, buffer descriptors, and so forth.
  • Default = 512
  • Range = 80-2048
• Receive-Side Scaling. Enables dynamic load balancing of incoming traffic across CPUs.
  • Default = Disabled
  • Range = Disabled; Enabled
    • If the operating system recognizes less than four CPUs, then RSS will not be enabled.
    • RSS is disabled system wide by default in the operating system. RSS must be enabled system-wide for it to work on the adapter itself. To enable RSS in the operating system, execute the "netsh int tcp set global rss=enabled" command.
• TCP Connection Offload. Enables the offloading of TCP connections over IPv4 or IPv6.
  • Default = Enabled
  • Range = Disabled; Enabled
    • TOE is disabled system wide by default in the operating system. TOE must be enabled system-wide for it to work on the adapter itself. To enable TOE in the operating system, execute the "netsh int tcp set global chimney=enabled" command.
    • TOE will not work with the following features enabled: Windows Firewall; Internet Protocol security (IPsec); Internet Protocol Network Address Translation (IPNAT); third-party firewalls; and NDIS 5.1 intermediate drivers. Download article number KB912222 from the Microsoft website for more information.
    • IPv6 TOE is currently supported on NC382x and NC532x adapters. When TOE is enabled on an adapter, both IPv4 and IPv6 is enabled on the adapter if the adapter supports IPv6.