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Zorluk: Çok zorCisco DNA Center Enabled Device Management

A network administrator is onboarding a brand-new Cisco Catalyst switch into an enterprise network using Cisco Catalyst Center (formerly Cisco DNA Center) Network Plug and Play (PnP). Place the steps of the Day-0 PnP device discovery and provisioning process into the correct operational sequence from first to last.

  1. 1The unconfigured switch boots up, requests IP addressing via DHCP, and extracts the controller IP address provided in DHCP Option 43.
  2. 2The switch establishes a secure TLS connection to Cisco Catalyst Center and sends its serial number and Product ID (PID).
  3. 3Cisco Catalyst Center matches the device serial number to a PnP rule and assigns the device to a specified site hierarchy.
  4. 4Cisco Catalyst Center pushes the designated Golden software image and Day-0 CLI configuration template to the device.
  5. 5The switch installs the image, reboots, applies the startup configuration, and establishes Telemetry/Assurance connectivity.

Cevap

The correct operational sequence begins with the switch extracting the controller address from DHCP Option 43, establishing a secure TLS connection to transmit its serial number, matching the serial number to claim the device in Cisco Catalyst Center, provisioning the Golden software image and Day-0 configuration template, and finally rebooting to establish full Assurance telemetry integration.
The standard Network Plug and Play (PnP) zero-touch onboarding workflow follows a strict deterministic sequence: 1) The unconfigured device boots and uses DHCP Option 43 to obtain the Cisco Catalyst Center IP. 2) It opens a TLS connection to the controller and reports its serial number and Product ID (PID). 3) Cisco Catalyst Center matches the serial number, claims the device, and assigns it to a site hierarchy. 4) The controller pushes the designated Golden software image (SWIM) and Day-0 configuration template. 5) The switch reboots with the new image/config and registers for telemetry/Assurance monitoring.

Adım Adım Çözüm

1
Identify initial network discovery
The device receives network settings and decodes vendor-specific DHCP Option 43 containing the controller IP.
Factory-default switches require an automated mechanism (DHCP Option 43 or Cloud PnP Redirect) to locate Cisco Catalyst Center without local console intervention.
2
Establish control channel and device identification
The device initiates a secure TLS session to Cisco Catalyst Center and sends identity parameters (serial number and PID).
The controller requires cryptographic session establishment and device identification before executing any management operations.
3
Claim device and map site policy
Cisco Catalyst Center claims the serial number and maps it to a designated network site.
Site assignment dictates which software image policies (SWIM) and Day-0 configuration templates apply to the device.
4
Deploy image and template configuration
Cisco Catalyst Center transfers the Golden IOS XE image and provisions the Day-0 configuration.
Provisioning software compliance and base network configuration must occur prior to operational activation.
5
Finalize activation and assurance telemetry registration
The switch reloads into the new image, applies the configuration, and syncs telemetry with Assurance.
Applying the golden image and configuration requires a system reload, completing the zero-touch onboarding lifecycle.

Anahtar Kavram

Cisco Catalyst Center Network Plug and Play (PnP) Day-0 Device Onboarding Workflow
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Cisco DNA Center Enabled Device Management

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