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This chapter includes the following sections:
Configuring vNIC Templates
This policy defines how a vNIC on a server connects to the LAN. This policy is also referred to as a vNIC LAN connectivity policy.
You need to include this policy in a service profile for it to take effect.
This policy requires that one or more of the following resources already exist in the system:
Include the vNIC template in a service profile.
You can bind a vNIC associated with a service profile to a vNIC template. When you bind the vNIC to a vNIC template, Cisco UCS Manager configures the vNIC with the values defined in the vNIC template. If the existing vNIC configuration does not match the vNIC template, Cisco UCS Manager reconfigures the vNIC. You can only change the configuration of a bound vNIC through the associated vNIC template. You cannot bind a vNIC to a vNIC template if the service profile that includes the vNIC is already bound to a service profile template.
If the vNIC is reconfigured when you bind it to a template, Cisco UCS Manager reboots the server associated with the service profile.
Configuring Ethernet Adapter Policies
These policies govern the host-side behavior of the adapter, including how the adapter handles traffic. For example, you can use these policies to change default settings for the following:
Queues
Interrupt handling
Performance enhancement
RSS hash
Failover in an cluster configuration with two fabric interconnects
By default, Cisco UCS provides a set of Ethernet adapter policies and Fibre Channel adapter policies. These policies include the recommended settings for each supported server operating system. Operating systems are sensitive to the settings in these policies. Storage vendors typically require non-default adapter settings. You can find the details of these required settings on the support list provided by those vendors.
We recommend that you use the values in these policies for the applicable operating system. Do not modify any of the values in the default policies unless directed to do so by Cisco Technical Support.
However, if you are creating an Ethernet adapter policy for a Windows OS (instead of using the default Windows adapter policy), you must use the following formulas to calculate values that work with Windows:
For example, if Transmit Queues = 1 and Receive Queues = 8 then:
Tip |
If the fields in an area are not displayed, click the Expand icon to the right of the heading. |
Step 1 | In the Navigation pane, click the LAN tab. |
Step 2 | On the LAN tab, expand . |
Step 3 | Expand the Adapter Policies node. |
Step 4 | Right-click the Ethernet adapter policy that you want to delete and choose Delete. |
Step 5 | If Cisco UCS Manager GUI displays a confirmation dialog box, click Yes. |
Configuring Network Control Policies
This policy configures the network control settings for the Cisco UCS instance, including the following:
Whether the Cisco Discovery Protocol (CDP) is enabled or disabled
How the VIF behaves if no uplink port is available in end-host mode
Whether the server can use different MAC addresses when sending packets to the fabric interconnect
The network control policy also determines the action that Cisco UCS Manager takes on the remote Ethernet port or the vEthernet interface when the associated border port fails. By default, the Action on Uplink Fail property in the network control policy is configured with a value of link-down. This default behavior directs Cisco UCS Manager to bring the remote Ethernet or vEthernet port down if the border port fails.
Note |
The default behaviour of the Action on Uplink Fail property is optimal for most Cisco UCS that support link failover at the adapter level or only carry Ethernet traffic. However, for those converged network adapters that support both Ethernet and Fibre Channel traffic, such as the Cisco UCS CNA M72KR-Q and the Cisco UCS CNA M72KR-E, the default behavior can affect and interrupt Fibre Channel traffic as well. Therefore, if the server includes one of those converged network adapters and the the adapter is expected to handle both Ethernet and Fibre Channel traffic, we recommend that you configure the Action on Uplink Fail property with a value of warning. Please note that this configuration may result in an Ethernet teaming driver not being able to detect a link failure when the border port goes down. |
Step 1 | In the Navigation pane, click the LAN tab. | ||||||||||
Step 2 | On the LAN tab, expand . | ||||||||||
Step 3 |
Expand the node for the organization where you want to create the policy. If the system does not include multi-tenancy, expand the root node. |
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Step 4 | Right-click the Network Control Policies node and select Create Network Control Policy. | ||||||||||
Step 5 |
In the Create Network Control Policy dialog box, complete the following fields:
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Step 6 |
In the MAC Security area, do the following to determine whether the server can use different MAC addresses when sending packets to the fabric interconnect:
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Step 7 | Click OK. |
Step 1 | In the Navigation pane, click the LAN tab. |
Step 2 | On the LAN tab, expand . |
Step 3 | Expand the Network Control Policies node. |
Step 4 | Right-click the policy you want to delete and select Delete. |
Step 5 | If Cisco UCS Manager GUI displays a confirmation dialog box, click Yes. |