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Answer: To run the Cisco Nexus Dashboard (formerly known as Cisco Data Center Network Manager, DCNM) app, you typically need connectivity between the Cisco Nexus Dashboard Data network and the fabric infrastructure of the Cisco Nexus switches. Here’s how the different interfaces come into play:
1. **In-Band Management Interface**: This interface uses the same network infrastructure that carries data traffic to manage the network devices. In an in-band setup, the management traffic flows through the same physical interfaces as the data traffic. This is a common approach for managing Cisco Nexus switches.
2. **Out-of-Band Management Interface**: This interface is dedicated solely to management traffic and is separate from the data traffic. Out-of-band management provides isolation and can be more secure because it is independent of the data network.
3. **Fabric Primary Interface**: This refers to the primary interface used for communication within the fabric infrastructure of Cisco Nexus switches. This interface is crucial for intra-fabric communication and management.
### Recommendation:
- For optimal management and operation of the Cisco Nexus Dashboard app (Cisco NDO), **the in-band management interface** should be reachable from the Cisco Nexus Dashboard Data network. This ensures that the Nexus Dashboard application can communicate effectively with the Cisco Nexus switches for monitoring, configuration, and management purposes.
### Reasons for Choosing In-Band:
- **Simplicity**: Using the in-band management interface leverages existing network infrastructure, reducing complexity in setup.
- **Integrated Monitoring**: It allows monitoring of both data traffic and management traffic through the same interfaces.
- **Cost-Effective**: There's no need for additional dedicated management networks or interfaces.
### Considerations:
- Ensure proper network design and security practices to segregate management traffic within the data network.
- Configure appropriate access controls and firewall rules to protect management traffic.
By ensuring connectivity to the in-band management interface from the Cisco Nexus Dashboard Data network, you enable seamless operation and management of the Cisco NDO app across your network infrastructure.
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