Vnic Mac Addresses Manual Cisco

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Cisco UCS blades are not encoded with MAC address. So we need to create the MAC addresses, that are unique in their Layer 2 environment and are available to be assigned to vNICs on a server. To assign a MAC address to a blade, you have to include the MAC pool in a vNIC policy. The vNIC policy. MAC address assignment failed for a vNIC, possibly illegal MAC address or no available MACs in the pool. It's quite intresting error, because there are 20 free mac-address in MAC-POOL. Service Profile contains 2 vNIC: vNIC, iSCSI vNIC. Hardwire NIC is 1240. Cisco UCS - Creating Service Profile Templates - Part 1 Posted on January 23, 2012 by Petri IT Knowledgebase Team in Networking with 4 Comments Share on Facebook.

Global Service Profiles

Global service profiles centralize the logical configuration deployed across the data center. This centralization enables the maintenance of all service profiles in the Cisco UCS domains, from one central location in Cisco UCS Central. When you use a global service profile, you can do the following across the data center:

  • Pick a compute element for the service profile from any of the Cisco UCS domains.

  • Migrate the service profile from one element to another.

  • Select servers from the available global server pools from any of the Cisco UCS domains.

  • Associate global resources such as ID pools and policies.

  • Reference to any of the global policies in the Cisco UCS domain.

Creating Global Service Profiles

You can create a global service profile from Cisco UCS Central GUI or Cisco UCS Central CLI or as regular service profiles from Cisco UCS Manager and reference the global polices. When you create the global service profile from Cisco UCS Central, you can create ID pools, vNICs and vHBAs in Cisco UCS Central and reference to the ID.

Configuring Management IP Addresses for Global Service Profiles

Each server in a Cisco UCS domain must have one or more management IP addresses assigned to its Cisco Integrated Management Controller (CIMC) or to the service profile associated with the server. In Cisco UCS Central, the following management IP addresses can be configured to create a service profile:
  • Zero or one outband IPv4 address, through which traffic traverses the fabric interconnect through the management port.
  • Zero or one inband (IPv4 or IPv6) address, through which traffic traverses the fabric interconnect through the fabric uplink port.

You can configure either a pooled or a static management IP address through the Cisco UCS Central GUI or CLI. However, while creating a global service profile using the global service profile template, you can only configure a pooled management IP address. Static IP address is not supported for this release.

Guidelines and Cautions for Global Service Profile

Make sure to remember the following when you are creating global service profiles:

  • When you create a global service profile in Cisco UCS Central, the system validates the following information:

    • Use od ID along with vNICs, vHBAs, iSCSI vNICs etc

    • vLAN and vSAN assignment

    • Association to the compute element based on the availability index

    • Server qualification criteria

      Any incompatibility in these information will be flagged. You can successfully create the global service profile only after resolving these issues.

  • After any of the policy reference is resolved in the global service profile, if any of the remote policy is changed, that will result in reconfiguration of the global service profile.

  • The VLANs and VSANs in Cisco UCS Central belong to domain groups. Make sure to create the VLANS or VSANs under a domain group. In case of VLAN also assign them to Orgs before a vNIC or vHBA from the global service profile can access the VLAN or VSAN.

  • You can modify, disassociate or delete any of the global service profile only from Cisco UCS Central.

  • You can rename a global service profile only from Cisco UCS Central. When you rename a service profile, Cisco UCS Central deletes the global service profile with old name and creates a new service profile with the new name in the inventory.

  • If a server that is associated to the global service profile is removed from the Cisco UCS domain, when you re-acknowledge the server, it will be unassociated from the service profile.

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  • You cannot define or access domain specific policies, such as multi-cast policy and flow-control policy from Cisco UCS Central. But, you can reference to these policies from Cisco UCS Central by global service profile resources. When you define the global service profile, you can view the available domain specific policies and refer to them in the service profile by name. When the service profile is deployed, the Cisco UCS domain resolves to the policy and includes it in the service profile for that domain.

  • You can localize a global service profile from the deployed Cisco UCS Manager. When you localize, the global service profile is deleted from Cisco UCS Central. But all the global policies still remain global. If you want to localize the global policies, you have to localize each policy separately.

Network Control Policy

This policy configures the network control settings for the Cisco UCS domain, including the following:

Vnic Mac Addresses Manual Cisco Server

  • Whether the Cisco Discovery Protocol (CDP) is enabled or disabled

  • How the virtual interface ( VIF) behaves if no uplink port is available in end-host mode

  • The action that Cisco UCS Central takes on the remote Ethernet interface, vEthernet interface , or vFibre Channel interface when the associated border port fails

  • Whether the server can use different MAC addresses when sending packets to the fabric interconnect

  • 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.

MacVnic

Configuring a Network Control Policy

Vnic Mac Addresses Manual Cisco Server

MAC address-based port security for Emulex converged Network Adapters (N20-AE0102) is not supported. When MAC address-based port security is enabled, the fabric interconnect restricts traffic to packets that contain the MAC address that it first learns. This is either the source MAC address used in the FCoE Initialization Protocol packet, or the MAC address in an ethernet packet, whichever is sent first by the adaptor. This configuration can result in either FCoE or Ethernet packets being dropped.

Procedure

Command or ActionPurpose
Step 1

UCSC# connect policy-mgr

Enters policy manager mode.

Step 2

UCSC(policy-mgr) # scope org org-name

Enters organization mode for the specified organization. To enter the root organization mode, enter / as the org-name.

Step 3

UCSC(policy-mgr) /org # create nw-ctrl-policy policy-name

Creates the specified network control policy, and enters organization network control policy mode.

Step 4

UCSC(policy-mgr) /org/nw-ctrl-policy # {disable enable } cdp

Disables or enables Cisco Discovery Protocol (CDP).

Step 5

UCSC(policy-mgr) /org/nw-ctrl-policy # set uplink-fail-action {link-down warning }

Specifies the action to be taken when no uplink port is available in end-host mode.

Use the link-down keyword to change the operational state of a vNIC to down when uplink connectivity is lost on the fabric interconnect, and facilitate fabric failover for vNICs. Use the warning keyword to maintain server-to-server connectivity even when no uplink port is available, and disable fabric failover when uplink connectivity is lost on the fabric interconnect. The default uplink failure action is link-down.

Step 6

UCSC(policy-mgr) /org/nw-ctrl-policy # set mac-registration-mode {all-host-vlans only-native-vlan

Whether adapter-registered MAC addresses are added only to the native VLAN associated with the interface or added to all VLANs associated with the interface. This can be one of the following:

  • Only Native Vlan—MAC addresses are only added to the native VLAN. This option is the default, and it maximizes the port+VLAN count.

  • All Host Vlan—MAC addresses are added to all VLANs with which they are associated. Select this option if your VLANs are configured to use trunking but are not running in Promiscuous mode.

Step 7

UCSC(policy-mgr) /org/nw-ctrl-policy # create mac-security

Enters organization network control policy MAC security mode

Step 8

UCSC(policy-mgr) /org/nw-ctrl-policy/mac-security # set forged-transmit {allow deny }

Allows or denies the forging of MAC addresses when sending traffic. MAC security is disabled when forged MAC addresses are allowed, and MAC security is enabled when forged MAC addresses are denied. By default, forged MAC addresses are allowed (MAC security is disabled).

Step 9

UCSC(policy-mgr) /org/nw-ctrl-policy/mac-security # commit-buffer

Commits the transaction to the system configuration.

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Example

The following example:

Vendor Mac Addresses

  • Creates a network control policy named ncp5

  • Enables CDP

  • Sets the uplink fail action to link-down

  • Denies forged MAC addresses (enables MAC security)