A topology and application‐aware relay path allocation scheme in multipath transport system based on application‐level relay

Abstract

The ever-increasing transmission requirements of quality of service (QoS)-sensitive applications, especially real-time multimedia applications, can hardly be met by the single path routing protocols. Multipath transmission mechanism is a feasible approach to provide QoS for various applications. On the basis of the general framework of multipath transport system based on application-level relay, we present a relay path allocation scheme, whose goal is to select suitable relay paths, while balancing the overlay traffic among the different domains and relayers. With the application-layer traffic optimization service under the standardization within the Internet Engineering Task Force (IETF), the controller has the topology-aware ability to allocate relay paths with excellent routing performance. To further develop the universality of our method, the controller perceives transmission performance of relay overlay network through relayers' performance detection processes and, thus, has the application-aware ability to allocate relay paths with excellent transmission performance for different applications by consulting application-specific transmission metrics. Simulation results demonstrate that the proposed relay path allocation algorithm performs well in allocating superior relay paths and can balance the distribution of overlay traffic across domains in different network situations. KEYWORDS application-layer traffic optimization (ALTO), application-specific transmission metric, relay overlay network, relay path allocation

SGMR: A spatial geometry–based multipath routing method on overlay networks

“…SGMR is executed on the control plane of SDSON 25-28 (or previous framework multipath transmission system based on application-level relay [MPTS-AR] [27][28][29][30][31][32][33] ). 2) Coordinates of overlay nodes are employed in constructing the spatial topology view to characterize ND.…”

“…In real-world environment, "e-surfing" cloud servers are exploited, and underlay networks are traditional interconnected-bearing networks. SGMR is executed on the control plane of SDSON [25][26][27][28] (or previous framework multipath transmission system based on application-level relay [MPTS-AR] [27][28][29][30][31][32][33] ).…”

A Multi-Dimension Spatial Method for Topology Awareness and Multipath Generating

“…We deploy application-layer relay nodes in bearing networks to redirect networks traffic into multiple concurrent end-to-end paths. In order to achieve optimal and intelligent control and management on relay nodes, we use the software-defined networking (SDN) paradigm to orchestrate relay nodes and conduct forwarding control and we name the SDN-based multipath transmission framework Software-Defined Service Overlay Network (SDSON) [17][18][19][20].…”

Considerations for application‐layer multipath transport control

“…In our previous work, a general framework of multipath transport system based on application-level relay (MPTS-AR) was presented to implement multipath transport using overlay network. [9][10][11][12][13] In MPTS-AR, end-to-end multiple paths between communicating endpoints are constructed with application-layer relay nodes that provide lightweight user datagram protocol (UDP)-based forwarding services. The user agents located in endpoints are given the power of the entire multipath transport control to match the applicationlayer transmission requirements.…”

“…In our previous work, a general framework of multipath transport system based on application‐level relay (MPTS‐AR) was presented to implement multipath transport using overlay network . In MPTS‐AR, end‐to‐end multiple paths between communicating endpoints are constructed with application‐layer relay nodes that provide lightweight user datagram protocol (UDP)–based forwarding services.…”