Transmit Queue Ring Size field | Cisco Systems UCSCPCIECSC02

Managing Network Adapters

Viewing vNIC Properties

Name	Description
Transmit Queue Ring Size field	The number of descriptors in each transmit queue.

Enter an integer between 64 and 4096.

Step 12 In the Completion Queue area, review the information in the following fields:

Name	Description
Completion Queue Count field	The number of completion queue resources to allocate. In general, the
	number of completion queue resources you should allocate is equal to
	the number of transmit queue resources plus the number of receive
	queue resources.
	Enter an integer between 1 and 512.
Completion Queue Ring Size	The number of descriptors in each completion queue.
field	This value cannot be changed.
	This value cannot be changed.

Step 13 In the TCP Offload area, review the information in the following fields:

Name	Description

Enable TCP Segmentation If checked, the CPU sends large TCP packets to the hardware to be

Offload check boxsegmented. This option may reduce CPU overhead and increase throughput rate.

	If cleared, the CPU segments large packets.
	Note	This option is also known as Large Send Offload
		(LSO).
Enable TCP Rx Offload	If checked, the CPU sends all packet checksums to the hardware for
Checksum Validation check box	validation. This option may reduce CPU overhead.
	If cleared, the CPU validates all packet checksums.
Enable TCP Tx Offload	If checked, the CPU sends all packets to the hardware so that the
Checksum Generation check box	checksum can be calculated. This option may reduce CPU overhead.
	If cleared, the CPU calculates all packet checksums.
Enable Large Receive check box	If checked, the hardware reassembles all segmented packets before
	sending them to the CPU. This option may reduce CPU utilization and
	increase inbound throughput.

If cleared, the CPU processes all large packets.

Step 14 In the Receive Side Scaling area, review the information in the following fields:

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

Image 24

Cisco Systems UCSCPCIECSC02 manual Transmit Queue Ring Size field, Completion Queue Count field, Completion Queue Ring Size

Contents

Managing Network Adapters Overview of the Cisco UCS C-Series Network Adapters Viewing Network Adapter Properties Cisco UCS P81E Virtual Interface Card Cimc Management Enabled PCI Slot columnProduct Name column Serial Number column Configuration Pending field FIP Mode fieldNIV Mode field Fault Configuring Adapter Properties Enable FIP Mode check box Enable NIV Mode check box Number of VM FEX InterfacesClick Save Changes Managing vHBAs Guidelines for Managing vHBAsViewing vHBA Properties Name field FC SAN Boot check box Enable Persistent LUN BindingDefault Vlan field Class of Service drop-down list Enable FCP Error Recovery Link Down Timeout fieldPort Down Timeout field Ratov field Interrupt Mode drop-down list Flogi Timeout fieldThrottle Count field LUNs per Target field Modifying 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 vHBA VHBA Boot Table Creating a Boot Table EntryDeleting a vHBA Fc1 Deleting a Boot Table Entry VHBA Persistent Binding Viewing Persistent Bindings Managing vNICs Rebuilding Persistent BindingsGuidelines for Managing vNICs Viewing vNIC Properties Trust Host CoS check boxPCI Order field Enable PXE Boot check box Enable Uplink Failover check boxFailback Timeout field Interrupt Count field Coalescing Time fieldCoalescing Type drop-down list Receive Queue Count field Enable TCP Rx Offload Enable TCP Tx OffloadEnable Large Receive check box Transmit Queue Ring Size field Enable TCP-IPv6 Extension RSS Modifying vNIC Properties Access 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 vNIC Managing VM FEX Deleting a vNICVirtual Machine Fabric Extender Viewing Virtual FEX Properties Vlan Mode column PXE Boot fieldProperties button Uplink Failover column Interrupt Mode field Coalescing Type field Enable TCP Segmentation Enable Large Receive fieldEnable IPv4 RSS field Enable TCP-IPv4 RSS field Backing Up and Restoring the Adapter Configuration Exporting the Adapter ConfigurationClick Export Configuration Tftp Server IP Address field Importing the Adapter Configuration Restoring Adapter DefaultsClick Import Configuration Installing Adapter Firmware From a Local File Managing Adapter FirmwareAdapter Firmware Installing Adapter Firmware From a Tftp Server Install Firmware button Resetting the Adapter Activating Adapter Firmware OL-23489-08