VPNs and Logical Routers

You can partition a single physical router into multiple logical routers that perform independent routing tasks. Because logical routers perform a subset of the tasks once handled by the physical router, logical routers offer an effective way to maximize the use of a single routing platform.

Logical routers perform a subset of the actions of a physical router and have their own unique routing tables, interfaces, policies, and routing instances. A set of logical routers within a single router can handle the functions previously performed by several small routers.

You can configure Layer 2 VPNs, Layer 3 VPNs, VPLS, and Layer 2 circuits within a logical router. For more information on logical routers, see the JUNOS Routing Protocols Configuration Guide.