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Multitenancy using VRF with Dell SmartFabric OS10 Implementation Guide
Introduction
Solution introduction
Implementation Guide introduction
Document purpose
Revision history
Multitenancy Use Cases Validated Components Switch Configurations Validate Configurations Validate Connectivity Route Leaking Summary Technical Resources

Solution introduction

Home > Networking Solutions > Enterprise/Data Center Networking Solutions > SmartFabric OS10 Networking Solutions > Guides > Multitenancy using VRF with Dell SmartFabric OS10 Implementation Guide > Solution introduction

Solution introduction

  • Overview

    Virtual routing and forwarding (VRF) technology is well suited for multitenancy because it segments and protects traffic by partitioning the switch into multiple virtual routers (VR). With VRF, the control and data plane are isolated in each VR as traffic does not flow across VRs. VRF does so by provisioning multiple different routing tables within the same layer-3 (L3) switch. VRF segments traffic between VRs at Layer 3, like VLANs at Layer 2.

    A L3 switch has a single global routing table by default. You can view the default routing table with the show ip route command in the Dell SmartFabric OS10 operating system (OS10). When you configure a VRF instance, the switch creates a VR with a unique routing table. The default routing table still exists, and a new routing table for that VRF is created. You can view the routing table for each VRF with the show ip route vrf vrf-name command. Layer 3 traffic cannot pass between VRs unless permitted with route leaking. With route leaking, you configure the source VRF and destination VRF, and specify either a static or dynamic route. 

    There are two types of VRF: full VRF, and VRF-lite. Full VRF was designed for service providers to provide end-to-end traffic segmentation across a network using multiprotocol BGP (MP-BGP) and MPLS. VRF-lite is a subset of VRF that does not use MP-BGP and MPLS, to enable traffic separation on a single L3 switch or router. Dell OS10 supports VRF-lite, which is the topic of this guide and is called VRF.