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You Should Know:
Cisco SD-WAN (Software-Defined Wide Area Network) is a critical technology for modern network management, enabling businesses to efficiently manage their WANs. Below are some key commands, steps, and practices related to Cisco SD-WAN that can help you prepare for interviews or practical implementations.
Basic Cisco SD-WAN Commands
1. Check Device Status:
show sdwan control connections
This command displays the status of control connections between devices.
2. View Tunnel Information:
show sdwan tunnel
Use this command to see the status of SD-WAN tunnels.
3. Monitor Application Performance:
show sdwan app-route stats
This command provides statistics on application-aware routing.
4. Check OMP (Overlay Management Protocol) Peers:
show sdwan omp peers
Displays information about OMP peers in the SD-WAN fabric.
5. Verify Policy Application:
show sdwan policy from-vsmart
This command shows the policies applied from the vSmart controller.
Steps to Configure Cisco SD-WAN
1. Set Up vManage:
- Access the vManage dashboard.
- Add devices using their serial numbers and certificates.
2. Configure Templates:
- Create device templates for consistent configuration across devices.
- Apply feature templates for specific functionalities like VPNs, routing, and security.
3. Establish Control Connections:
- Ensure devices can communicate with vManage, vSmart, and vBond controllers.
- Use the following command to verify:
show sdwan control connections
4. Deploy Policies:
- Create and apply centralized policies for traffic steering, QoS, and security.
- Use the vManage GUI to define and push policies.
5. Monitor and Troubleshoot:
- Use vManage dashboards to monitor network performance.
- Troubleshoot using commands like:
show sdwan bfd sessions show sdwan control connections
Practice Commands for Linux (Related to Networking)
1. Check Network Interfaces:
ip addr show
2. Test Connectivity:
ping <IP_address>
3. Trace Route:
traceroute <destination_IP>
4. Monitor Network Traffic:
tcpdump -i <interface>
5. Check Routing Table:
netstat -r
What Undercode Say:
Cisco SD-WAN is a powerful tool for optimizing network performance and simplifying WAN management. Mastering the commands and configurations is essential for both interviews and real-world implementations. Practice the provided commands and steps to gain confidence in working with Cisco SD-WAN. For further reading, refer to Cisco’s official documentation: Cisco SD-WAN Documentation.
References:
Reported By: Mohamed Abdelgadr – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
