Blind Packet Forwarding in a hierarchical architecture with Locator/Identifier Split

Abstract

In our previous work, we discussed the issue that with existing techniques we can either provide end-to-end information security or establish smart in-network services. Using the example of Blind Packet Forwarding (BPF), we demonstrated the feasibility to simultaneously realise both goals. However, the basic BPF design is not sufficiently scalable and lacks support for mobility and multihoming. This paper focuses on the issues of the basic BPF design and resolves them by applying the Locator/Identifier Split approach. We extend our BPF design and especially adopt the features of the Hierarchical Architecture for Internet Routing (HAIR). Additionally, we present our prototype implementation of the improved BPF, which benefits from the flow-based forwarding in OpenFlow, and evaluate it.