![2025 Guide: Overlay vs Underlay in SD-WAN – What’s Changed?[CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Overlay-vs-Underlay-in-SD-WAN_networkjourney-1-1024x1024.png)
Trainer Sagar Dhawan
- July 17, 2025
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2025 Guide: Overlay vs Underlay in SD-WAN – What’s Changed? [CCNP Enterprise]
If you’re anything like my students or clients, you’ve probably...
![Ticket#16 – SD-WAN VPN 0 Down: Color Mismatch Between Transport Interfaces [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/Ticket16-–-SD-WAN-VPN-0-Down_Color-Mismatch-Between-Transport-Interfaces_networkjourney-1-1024x1024.png)
- July 16, 2025
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Ticket#16 – SD-WAN VPN 0 Down: Color Mismatch Between Transport Interfaces [CCNP ENTERPRISE]
Problem Summary A new remote branch router was provisioned and...