Global VLANs
You can define global VLANs in the domain group root, or a domain group below the root. Global VLANs can only be common or global. You cannot assign them to a specific fabric interconnect.
Resolution of global VLANs takes place prior to the deployment of global service profiles. If a global service profile references a global VLAN, and that VLAN does not exist, deployment of the global service profile fails due to insufficient resources. All global VLANs created in a Cisco UCS Central account must be resolved before deploying the global service profile.
All global VLANs configured in a Cisco UCS Central account are common to the domains in which they are created. However, organization permissions must first be assigned before the Cisco UCS domains that are part of the organizations can consume the resources. By default, no organization permissions are assigned when you create a global VLAN. Once organization permissions have been granted to a VLAN, it becomes visible to those organizations. It is also available to be referenced in service profiles that are part of those organizations.
A global VLAN is visible to a Cisco UCS Manager account only if you deploy a global service profile that references the VLANs. Once a VLAN that is deployed with a global service profile becomes available in a Cisco UCS Manager account, you can include it in a local service profile and policy. You cannot turn a global VLAN into a local VLAN.
A global VLAN is not deleted when you delete a global service profile that references it. Delete the global VLAN from the Cisco UCS Central account.
Creating a Global VLAN
Procedure
Step 1 |
Choose . |
Step 2 |
On the Compute page, expand Multi-Domain Managers. |
Step 3 |
On the Compute page, choose the UCS Central Account under Multi-Domain Managers. |
Step 4 |
On the UCS Central Accounts page, choose the account and click View Details. |
Step 5 |
Click Common VLANs. |
Step 6 |
Click Add. |
Step 7 |
On the Add VLAN screen, do the following: |
Publishing a Global VLAN
Global VLANs can be published to the associated domains, and those VLANs are then available at domain level. For a VLAN associated to a domain group (x), it can be published to any of the domains linked with the same domain group (x).
Procedure
Step 1 |
Choose . |
Step 2 |
On the Compute page, expand Multi-Domain Managers. |
Step 3 |
On the Compute page, choose the UCS Central Account under Multi-Domain Managers. |
Step 4 |
On the UCS Central Accounts page, choose the account and click View Details. |
Step 5 |
Click Common VLANs. |
Step 6 |
From the list of VLANs, select the VLAN to be published. |
Step 7 |
From the More Actions drop-down list, choose Publish to USC Domain. |
Step 8 |
On the Publish VLAN to USC Domain screen, click the Select button. |
Step 9 |
From the Select list, click the check box of the desired domain and click the Select button. |
Step 10 |
In the Publish VLAN to USC Domain, click the Submit button. |
Modifying Organization Permissions for a Global VLAN
Procedure
Step 1 |
Choose . |
Step 2 |
On the Compute page, expand Multi-Domain Managers. |
Step 3 |
On the Compute page, choose the UCS Central Account under Multi-Domain Managers. |
Step 4 |
On the UCS Central Accounts page, choose the account and click View Details. |
Step 5 |
Click the Common VLANs. |
Step 6 |
Click the row for the global VLAN for which you want to modify organization permissions. |
Step 7 |
From the More Actions drop-down list, choose Modify Org Permissions. |
Step 8 |
On the Organization List screen, check the check boxes for the organizations in which you want to include the global VLAN. |
Step 9 |
Click Submit. |