Implementation and Performance Analysis of STT Tunneling Using vNIC Offloading Framework (CVSW)

Kawashima, Ryota; Matsuo, Hiroshi

doi:10.1109/cloudcom.2014.77

Cited by 6 publications

(6 citation statements)

References 4 publications

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“…For STT and Proposal, packet processing at receiver side is almost the same manner. In terms of sender side, only STT can take advantage of TSO feature of physical NIC, but as we reported in our previous paper [9], effect of enabling TSO feature on end-to-end throughput was unclear with recent machine power. Therefore, aggregated throughput of both protocols was equivalent.…”

Section: Multiple Vm-to-vm Communicationsmentioning

confidence: 94%

“…Finally, the original-sized Ethernet frames are passed to the destination VM. Such characteristics of the segment-oriented protocol can drastically reduce the number of both packets and software interruptions, and our previous study [9] has revealed that this 2-level software pre-reassembly is a key aspect of the high-performance ability of STT tunneling.…”

Section: Effect Of a L4 Protocol Type For L2-in-l3 Tunnelingmentioning

confidence: 99%

“…Therefore, yet another highperformance and middlebox-transparent tunneling protocol is required. In our previous work [9], we analyzed the performance of STT and evaluation results revealed that the cause of the high-performance ability of the protocol is 2-level software packet pre-reassembly before decapsulation, rather than TSO feature. In practice, a software-implemented Generic Receive Offload (GRO) [10] feature which reassembles the received packets before SoftIRQ improves the performance of STT considerably.…”

Section: Introductionmentioning

confidence: 99%

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Accelerating the Performance of Software Tunneling Using a Receive Offload-Aware Novel L4 Protocol

Kawashima

Matsuo

2015

IEICE Trans. Commun.

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Ryota KAWASHIMA †a) and Hiroshi MATSUO †b) , Members SUMMARY An L2-in-L3 tunneling technology plays an important role in network virtualization based on the concept of Software-Defined Networking (SDN). VXLAN (Virtual eXtensible LAN) and NVGRE (Network Virtualization using Generic Routing Encapsulation) protocols are being widely used in public cloud datacenters. These protocols resolve traditional VLAN problems such as a limitation of the number of virtual networks, however, their network performances are low without dedicated hardware acceleration. Although STT (Stateless Transport Tunneling) achieves far better performance, it has pragmatic problems in that STT packets can be dropped by network middleboxes like stateful firewalls because of modified TCP header semantics. In this paper, we propose yet another layer 4 protocol (Segment-oriented Connection-less Protocol, SCLP) for existing tunneling protocols. Our previous study revealed that the high-performance of STT mainly comes from 2-level software packet pre-reassembly before decapsulation. The SCLP header is designed to take advantage of such processing without modifying existing protocol semantics. We implement a VXLAN over SCLP tunneling and evaluate its performance by comparing with the original VXLAN (over UDP), NVGRE, Geneve, and STT. The results show that the throughput of the proposed method was comparable to STT and almost 70% higher than that of other protocols. key words: Software-Defined Networking, network virtualization, Network Function Virtualization, datacenter networks IntroductionMany functionalities of various network appliances including routers, switches, and firewalls have been migrated to virtual networks with the notion of Network Function Virtualization (NFV) [1]. A cutting-edge network virtualization is mainly based on two approaches, Hop-by-Hop and EdgeOverlay, however, the former requires a fully OpenFlow [2] ready network environment. The Edge-Overlay approach or Network Virtualization Overlays over Layer 3 (NVO3) [3] introduces L2-in-L3 tunneling between Tunnel End-Points (TEPs) to convey virtual traffic over physical networks. That is, the performance characteristic of the tunneling protocol can affect overall performance of virtual networks. In the NFV concept, high-performance ability of virtual networks is a key requirement for service quality. VXLAN has been adopted as RFC 7348 and supported by various platforms. However, VXLAN-based communications with software switches limit the performance of virtual networks compared with no-encapsulation communications [6], and the performance of NVGRE is almost the same with VXLAN. STT (Stateless Transport Tunneling) [7] had been proposed to achieve high-performance tunneling by exploiting a hardware offload feature of NIC (TCP Segmentation Offload [8], TSO). The STT protocol has a pseudo-TCP header to disguise STT packets as normal TCP packets as well as to make the STT protocol connection-less and stateless. The use of the pseudo-TCP header, however, causes an additional problem...

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Section: Multiple Vm-to-vm Communicationsmentioning

confidence: 94%

Section: Effect Of a L4 Protocol Type For L2-in-l3 Tunnelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Accelerating the Performance of Software Tunneling Using a Receive Offload-Aware Novel L4 Protocol

Kawashima

Matsuo

2015

IEICE Trans. Commun.

Self Cite

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“…Another difference to traditional hardware-based networks is the possibility to change used protocols on-the-fly. This protocol swap is done to implement additional features like TCP-offloading [27].…”

Section: A Challengesmentioning

confidence: 99%

Encapcap: Transforming Network Traces to Virtual Networks

Spiekermann

Keller

2021

2021 IEEE 7th International Conference on Network Softwarization (NetSoft)

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Valid and complete network captures are a valuable source when detecting network based attacks and adversarial data exfiltration techniques like covert channels or performing network forensic investigation Also in training, testing, benchmarking and algorithm development, the availability of prerecorded, entire packet captures is eminent. Such a packet capture contains the entire packet stream with all incoming and outgoing network packets recorded over a defined period of time. Whereas a large number of recorded packet captures with well-known protocols from physical networks exists, the number of available files focused on virtual networks is low. Yet, virtual networks are taking on an ever greater role in modern environments. The creation of such network traces is a timeconsuming and error-prone task, and the inherent behaviour of virtual networks eradicates a straight-forward automation of trace generation in comparison to common networks. In this paper we analyze relevant conditions of modern networks which hamper the generation of valid test captures and propose Encapcap, a tool that transforms given network packets stored in a capture file to virtual network packets. This improves the process of generating real-life packet captures for testing or training in virtual networks. We evaluate Encapcap with several experiments to demonstrate its correctness, usefulness and applicability.

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“…Which has been widely implemented by small and large scale ICT companies like datacenter [1]. This virtualization technology can't be denied that can decreasing the CAPEX and OPEX side [2].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of VXLAN and NVGRE Tunneling Protocol on Virtual Network

2017

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Virtualization is a new revolutionary approach in networking industry, its make possible to build several virtual machine (VM) in one physical hardware. In virtualization practice, one VM might be connected to others, but not all of VM in one environment must be connected due the privacy and security issues. One of the solutions which can address this issue is tunneling protocol. Tunneling protocol is a layer-2-in-layer-3 protocol which can isolate tenant traffic in virtualize environment. This research conducted about the performance of VXLAN and NVGRE tunneling protocol which works on virtualize environment and aims to determine the perfomances of throughput, delay, jitter, and vCPU Usage using variable packet size in range of 128-1514 byte. From the the result, can be conclude that both of tunneling protocol can isolate the traffic between tenant. For the performance result, NVGRE has the highest value of throughput, 771,02 Mbps and the VXLAN got 753,62 Mbps. For the delay NVGRE got 2.24 ms and VXLAN got 2.29 ms. For the jitter, NVGRE has better rate value of 0.361 ms, than VXLAN value of 0.348 ms, and the vCPU usage performance, NVGRE has the highest performance too that value is 60.57%. So on overall performance NVGRE has the better performance than VXLAN.

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Implementation and Performance Analysis of STT Tunneling Using vNIC Offloading Framework (CVSW)

Cited by 6 publications

References 4 publications

Accelerating the Performance of Software Tunneling Using a Receive Offload-Aware Novel L4 Protocol

Accelerating the Performance of Software Tunneling Using a Receive Offload-Aware Novel L4 Protocol

Encapcap: Transforming Network Traces to Virtual Networks

Performance Analysis of VXLAN and NVGRE Tunneling Protocol on Virtual Network

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