DELL S50V User Manual
1110
|
Virtual Routing and Forwarding (VRF)
www.dell.com | support.dell.com
Figure 57-1. VRF Network Example
VRF Configuration Notes
On E-Series routers, Dell Force10 VRF supports up to 15 VRF instances: 1 to 14 and the default VRF (0).
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 FIB table in the CAM.
number of routes supported in VRF is limited by the size of the IPv4 FIB table in the CAM.
VRF is implemented in a network device by using Forwarding Information Bases (FIBs). Each VRF uses
one FIB.
one FIB.
A network device may have the ability to configure different virtual routers, where each one has its own
FIB that is not accessible to any other virtual router instance on the same device.
FIB that is not accessible to any other virtual router instance on the same device.
Customer Edge
Routers
Routers
Customer Edge
Routers
Routers
Edge
Routers
Routers
Provider
Edge
Routers
Edge
Routers
Customer Edge
Routers
Routers
Customer Edge
Routers
Routers
Provider
Edge Router
with VRF
Edge Router
with VRF
Provider
Edge Router
with VRF
Edge Router
with VRF
Network with VRF
Network without VRF