Vrf Configuration Notes - Dell C9000 Series Networking Configuration Manual

Hide thumbs Also See for C9000 Series:

Table of Contents

VRF uses interfaces to distinguish routes for different VRF instances. Interfaces in a VRF can be either physical

(Ethernet port or port channel) or logical (VLANs). You can configure identical or overlapping IP subnets on

different interfaces if each interface belongs to a different VRF instance.

Figure 142. VRF Network Example

VRF Configuration Notes

Although there is no restriction on the number of VLANs that can be assigned to a VRF instance, the total

number of routes supported in VRF is limited by the size of the IPv4 CAM.

VRF is implemented in a network device by using Forwarding Information Bases (FIBs).

A network device may have the ability to configure different virtual routers, where entries in the FIB that

belong to one VRF cannot be accessed by another VRF on the same device. Only Layer 3 interfaces can

belong to a VRF. VRF is supported on following types of interface:

Physical Ethernet interfaces

Port-channel interfaces (static & dynamic using LACP)

Virtual Routing and Forwarding (VRF)