1. Multipath Routing Using Distributed Proxy Servers
Brett Wilson

2. Problem
Modern Applications utilize single TCP connections to transfer data
Single connections could be subject to bottlenecks that severely limit available bandwidth
Multipath routing has been proposed to increase aggregate data rate by providing multiple routes around bottlenecks

3. How to Implement Multipath Routing?
Many Implementation Options
Network layer
Routers direct TCP packets across different routes
Transport and Application layer
Host application uses modifications to transport layer to route packets across multiple distinct connections
Using Proxy Servers
Develop proxy server software to intercept outgoing packets and distribute them across different routes

4. MP Routing Using Proxy Servers

5. MP Routing System Design
MP proxy software responsible for:
Support of SOCKSv5 clients
Setup of multiple paths through other MP proxy servers as requested
Distribution of client data across the multiple paths
Receipt and sequential re-assembly of incoming data from multiple paths and forwarding to client application

6. Multipath Protocol (MPP)
Development of a new protocol required to facilitate communication between the multipath proxy servers on the network
Protocol must provide:
Coordination of MP connection setup and termination
Guaranteed, sequential delivery of the data

7. References
RFC 1928 describing the SOCKSv5 protocol can be found at
Nelakuditi, Srihari; Zhang, Zhi-Li. On Selection of Paths For Multipath Routing, Department of Computer Science, University of Minnesota
Johnny Chen. New Approaches to Routing for Large-Scale Data Networks, A Thesis, Rice University, June 1999