Vrf Lite Architecture Examples - Avaya 8800 Planning And Engineering, Network Design

Layer 3 network design
Using VRF Lite, the switch performs the following:
• partitions traffic and data and represents an independent router in the network
• provides virtual routers that are transparent to end-users
• supports overlapping IP address spaces in separate VRFs
• supports addresses that are not restricted to the assigned address space given by host Internet
Service Providers (ISP).
• supports SMLT/RSMLT
• supports Border Gateway Protocol
IPv6 is supported on VRF 0 only.

VRF Lite architecture examples

VRF Lite enables a router to act as many routers. This provides virtual traffic separation per user
and provides security. For example, you can use VRF Lite to do the following:
• provide different departments within a company with site-to-site connectivity as well as internet
access
• extend WAN VPNs into campus LANs without interconnecting VPNs
• provide centralized and shared access to data centers
The following figure shows how VRF Lite can be used to emulate IP VPNs.
Figure 35: VRF Lite example
The following figure shows how VRF Lite can be used in an SMLT topology. VRRP is used between
the two bottom routers.
June 2016 Planning and Engineering — Network Design
Comments on this document? infodev@avaya.com
110