netwyman

VRF lite is one types of wait wait before start understainding of VRF lite you guys should be aware of PE as well as CE Router. in MPLS networks related scenario the PE router is the Provider's edge router and the CE is the Customer edge router where the routing or L2 protocol works. The MPLS works start between one end PE to other end PE routers. What is VRF lite? VRFs as VPN Routing and Forwarding instances, are most commonly associated with MPLS service providers. In such networks, MPLS encapsulation is used to isolate individual customers' traffic and an independent routing table (VRF) is maintained for each customer. Mostly the MP-BGP is employed to facilitate complex redistribution schemes to import and export routes to and from VRFs to provide Internet connectivity. VRF-lite is a feature in MPLS environment that enables a service provider to support two or more VPNs, where IP addresses can be overlapped among the VPNs. VRF-lite uses input interfaces to distinguish r...

Route Target is one of the extensive community of BGP which is used in MPLS networks. Before understading and knowing about the what is the Route Target?, you have to know some basic concepts as VRF, RD which is generally used in MPLS network. VRF ( Virtual route forwarding ) we discussed earlier in the post, Now the important term to understand is RT ( Route Target ) Used with RD and VRF.  MPLS Route Target First of all we are going to know about why RT (Route Target) used in MPLS networks, RT ( Route Target ) comes into the scene when you have multiple remote sites which is connected to MPLS. So there are two concepts of RT as an Import and export. How and where to use Import and Export RT. as with any VRF, When you configure RT import, it imports all the prefixes that matches the configured RT value as one of the attribute in the BGP update. So in any-any VRF, it is common to see all PE configured with same RT value (You may see more RT depending on inter-VRF scenarios)...