One-Arm Hub-and-Spoke VPN with MPLS/VPN
A one-arm hub-and-spoke VPN is possible on certain devices using MPLS transport, simplifying hub device configuration.
MAIN POINTS
- Traditional hub-and-spoke VPN designs use two VRFs for the hub device.
- A one-arm hub-and-spoke VPN can work with a single link between hub and PE.
- Compatibility is limited to specific devices like Cisco IOS or FRRouting.
TAKEAWAYS
- Simplified configuration with a one-arm hub-and-spoke VPN reduces complexity.
- Device compatibility is crucial for implementing this VPN design.
- MPLS transport enables the one-arm hub-and-spoke VPN functionality.