Cisco Nexus Dashboard Orchestrator Deployment Guide, Release 4.2(x)

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Recovering from Cloud Network Controller Site Downtime

Updated: November 11, 2023

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Overview

sd Recovering from Cloud Network Controller Site Downtime

When Cloud Network Controller (formerly Cloud APIC) instance/VM goes down for any reason while still being managed by NDO, you may be unable to undeploy or delete any existing templates associated with that cloud site. In this case, attempting to forcefully unmanage the site in NDO can cause stale configuration and deployment errors even if the site recovers.

To recover from this:

Procedure

1.

Bring up the new Cloud Network Controller sites and reregister the cloud sites.

  1. Log in to NDO.

  2. Open the admin console.

  3. Navigate to the Operate > Sites page.

  4. From the action (…) menu next to the site you redeployed, choose Edit Site.

  5. Check the "Reregister site" check box.

  6. Provide the new site details.

    You must provide the new public IP address of site and sign-in credentials.

  7. Click Save to reregister the site.

When the connectivity status of the site shows UP, the site IPs in NDO are also updated and the new sites are in 'managed' state.

2.

Undeploy the previously deployed templates for each schema.

  1. Log in to NDO.

  2. Navigate to Configure and select Tenant Template > Applications.

  3. Click a schema with the deployed templates.

  4. From the Actions menu next to the Template Properties, choose Undeploy Template and wait until the template is successfully undeployed.
3.

Refresh the site's infra configuration to ensure that the new Cisco Catalyst 8000V switches are added in NDO.

  1. Navigate to Configure and select SiteTo Site Connectivity.

  2. Click Configure at the top right of the screen.

  3. Select the cloud site under the Sites panel and click Refresh.

  4. Click Deploy on the top right of the screen and wait until all sites are successfully deployed.
4.

Redeploy all templates associated with this Cloud Network Controller site.

  1. Navigate to Configure > Tenant Templates under the Applications tab.

  2. Click a schema with the templates undeployed earlier.

  3. Click Deploy to Sites and wait until the template is deployed.