Cisco Systems UCSCPCIECSC02 Enable TCP Segmentation, Offload field, Checksum Validation field

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Managing Network Adapters

Viewing Virtual FEX Properties

Name	Description
Completion Queue Ring Size	The number of descriptors in each completion queue.
field

Step 14 In the TCP Offload area, review the information in the following fields:

Name	Description
Enable TCP Segmentation	If enabled, the CPU sends large TCP packets to the hardware to be
Offload field	segmented. If disabled, the CPU segments large packets.
	Note	This option is also known as Large Send Offload
		(LSO).
Enable TCP Rx Offload	If enabled, the CPU sends all packet checksums to the hardware for
Checksum Validation field	validation. If disabled, the CPU validates all packet checksums.
Enable TCP Tx Offload	If enabled, the CPU sends all packets to the hardware so that the
Checksum Generation field	checksum can be calculated. If disabled, the CPU calculates all packet
	checksums.
Enable Large Receive field	If enabled, the hardware reassembles all segmented packets before
	sending them to the CPU. If disabled, the CPU processes all large
	packets.

Step 15 In the Receive Side Scaling area, review the information in the following fields:

Name	Description
Enable TCP Receive Side Scaling	Receive Side Scaling (RSS) distributes network receive processing
field	across multiple CPUs in multiprocessor systems.
	If enabled, network receive processing is shared across processors
	whenever possible. If disabled, network receive processing is always
	handled by a single processor even if additional processors are available.
Enable IPv4 RSS field	If enabled, RSS is enabled on IPv4 networks.
Enable TCP-IPv4 RSS field	If enabled, RSS is enabled for TCP transmissions across IPv4 networks.
Enable IPv6 RSS field	If enabled, RSS is enabled on IPv6 networks.
Enable TCP-IPv6 RSS field	If enabled, RSS is enabled for TCP transmissions across IPv6 networks.
Enable IPv6 Extension RSS field	If enabled, RSS is enabled for IPv6 extensions.

Enable TCP-IPv6 Extension RSS If enabled, RSS is enabled for TCP transmissions across IPv6 networks. field

	Cisco UCS C-Series Servers Integrated Management Controller GUI Configuration Guide, Release 1.4
34	OL-23489-08

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Contents Managing Network Adapters Overview of the Cisco UCS C-Series Network AdaptersViewing Network Adapter Properties Cisco UCS P81E Virtual Interface CardProduct Name column Cimc Management EnabledPCI Slot column Serial Number columnNIV Mode field Configuration Pending fieldFIP Mode field FaultConfiguring Adapter Properties Enable NIV Mode check box Number of VM FEX Interfaces Enable FIP Mode check boxClick Save Changes Viewing vHBA Properties Managing vHBAsGuidelines for Managing vHBAs Name fieldDefault Vlan field FC SAN Boot check boxEnable Persistent LUN Binding Class of Service drop-down listPort Down Timeout field Enable FCP Error RecoveryLink Down Timeout field Ratov fieldThrottle Count field Interrupt Mode drop-down listFlogi Timeout field LUNs per Target fieldModifying vHBA Properties World Wide Node Name field Error Recovery area, update the following fields Fibre Channel Interrupt area, update the following fields Name Creating a vHBA Click Add vHBADeleting a vHBA VHBA Boot TableCreating a Boot Table Entry Fc1Deleting a Boot Table Entry VHBA Persistent BindingViewing Persistent Bindings Rebuilding Persistent Bindings Managing vNICsGuidelines for Managing vNICs Trust Host CoS check box Viewing vNIC PropertiesPCI Order field Enable Uplink Failover check box Enable PXE Boot check boxFailback Timeout field Coalescing Type drop-down list Interrupt Count fieldCoalescing Time field Receive Queue Count fieldEnable Large Receive check box Enable TCP Rx OffloadEnable TCP Tx Offload Transmit Queue Ring Size fieldEnable TCP-IPv6 Extension RSS Modifying vNIC PropertiesAccess Ethernet Interrupt area, update the following fields Ethernet Transmit Queue area, update the following fields Enable TCP Receive Side Scaling Creating a vNIC Click Add vNICVirtual Machine Fabric Extender Managing VM FEXDeleting a vNIC Viewing Virtual FEX PropertiesProperties button Vlan Mode columnPXE Boot field Uplink Failover columnInterrupt Mode field Coalescing Type fieldEnable IPv4 RSS field Enable TCP SegmentationEnable Large Receive field Enable TCP-IPv4 RSS fieldClick Export Configuration Backing Up and Restoring the Adapter ConfigurationExporting the Adapter Configuration Tftp Server IP Address fieldRestoring Adapter Defaults Importing the Adapter ConfigurationClick Import Configuration Managing Adapter Firmware Installing Adapter Firmware From a Local FileAdapter Firmware Installing Adapter Firmware From a Tftp Server Install Firmware buttonResetting the Adapter Activating Adapter FirmwareOL-23489-08

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