VRF

VRF creates separate routing tables on the same router to isolate networks.

Updated: 2026-03-05

Definition

Virtual Routing and Forwarding (VRF) allows multiple isolated routing instances on one device.

It’s used in segmentation, multi-tenant designs, and MPLS-based networks.

Key points

Separate routing tables
Strong isolation at routing level
Common in provider/enterprise segmentation

Common mistakes

Forgetting route leaking requirements between VRFs.
Troubleshooting confusion due to multiple routing tables.

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Cisco CCNA (200-301)

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