Network Control Policy
This policy configures the network control settings for the Cisco UCS domain, including the following:
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Whether the Cisco Discovery Protocol (CDP) is enabled or disabled
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How the virtual interface ( VIF) behaves if no uplink port is available in end-host mode
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The action that Cisco UCS Central takes on the remote Ethernet interface, vEthernet interface , or vFibre Channel interface when the associated border port fails
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Whether the server can use different MAC addresses when sending packets to the fabric interconnect
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Whether MAC registration occurs on a per-VNIC basis or for all VLANs
Action on Uplink Fail
By default, the Action on Uplink Fail property in the network control policy is configured with a value of link-down. For adapters such as the Cisco UCS M81KR Virtual Interface Card, this default behavior directs Cisco UCS Central to bring the vEthernet or vFibre Channel interface down if the associated border port fails. For Cisco UCS systems using a non-VM-FEX capable converged network adapter that supports both Ethernet and FCoE traffic, such as Cisco UCS CNA M72KR-Q and the Cisco UCS CNA M72KR-E, this default behavior directs Cisco UCS Central to bring the remote Ethernet interface down if the associated border port fails. In this scenario, any vFibre Channel interfaces that are bound to the remote Ethernet interface are brought down as well.
Note |
if your implementation includes those types of non-VM-FEX capable converged network adapters mentioned in this section and the adapter is expected to handle both Ethernet and FCoE traffic, we recommend that you configure the Action on Uplink Fail property with a value of warning. Note that this configuration might result in an Ethernet teaming driver not being able to detect a link failure when the border port goes down. |
MAC Registration Mode
MAC addresses are installed only on the native VLAN by default, which maximizes the VLAN port count in most implementations.
Note |
If a trunking driver is being run on the host and the interface is in promiscuous mode, we recommend that you set the Mac Registration Mode to All VLANs. |
Creating or Editing a Network Control Policy
Procedure
Step 1 |
In the Actions bar, type Create Network Control Policy and press Enter. |
Step 2 |
In the Network Control Policy dialog box, choose whether to create a default or appliance network control policy. |
Step 3 |
Choose the Organization where you want to create the policy, and enter the Name and optional Description. The name is case sensitive. |
Step 4 |
Choose whether to enable Cisco Discovery Protocol (CDP). |
Step 5 |
Select values for Action on Uplink Failure, MAC Address Registration, and MAC Address Forging. |
Step 6 |
Choose whether to enable or disable Link Layer Discovery Protocol (LLDP) Transmit and Link Layer Discovery Protocol (LLDP) Receive. |
Step 7 |
Click Create. |
Deleting a Network Control Policy
Procedure
Step 1 |
On the menu bar, click Network. |
Step 2 |
In the Navigation Pane, expand . If you want to create or access a policy in a sub-organization, expand . |
Step 3 |
Expand Network Control Policies. |
Step 4 |
Right-click the policy that you want to delete and choose Delete. |
Step 5 |
If Cisco UCS Central GUI displays a confirmation dialog box, click Yes. |