Huawei's GRE Tunnel Bonding Protocol

Leymann, Nicolai; Heidemann, Cornelius; Zhang, Mingui; Sarikaya, Behçet; Cullen, Margaret

doi:10.17487/rfc8157

Cited by 11 publications

(9 citation statements)

References 2 publications

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“…The BBF initiated architectural work that was finalized in 2016 [3] while the work on the protocols was progressing within the IETF. The BBF is currently finalizing the Nodal Requirements for Hybrid Access Broadband Networks [4] that leverage recent IETF specifications [5], [6], [7].…”

Section: Hybrid Access Network Standardsmentioning

confidence: 99%

“…The first realization of this architecture relies on Generic Routing Encapsulation (GRE) Tunnels [4], [6]. This solution can be summarized as follows.…”

Section: B Gre-based L3 Overlay Tunnelingmentioning

confidence: 99%

“…Furthermore, the HCPE and the HAG regularly measure the performance of the two tunnels to dynamically determine the fraction of the packets that must be sent over each tunnel. Additional details are provided in [6]. Somme lessons learned from the deployment of Tunnelbased hybrid access networks have been discussed in IETF presentations [9] C. L4 Multipath using MPTCP…”

Section: B Gre-based L3 Overlay Tunnelingmentioning

confidence: 99%

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Increasing broadband reach withHybrid Access Networks

Keukeleire,

Hesmans,

Bonaventure

2019

Preprint

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End-users and governments force network operators to deploy faster Internet access services everywhere. Access technologies such as FTTx, VDSL2, DOCSIS3.0 can provide such services in cities. However, it is not cost-effective for network operators to deploy them in less densely populated regions. The recently proposed Hybrid Access Networks allow to boost xDSL networks by using the available capacity in existing LTE networks. We first present the three architectures defined by the Broadband Forum for such Hybrid Access Networks. Then we describe our experience with the implementation and the deployment of Multipath TCP-based Hybrid Access Networks.

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Section: Hybrid Access Network Standardsmentioning

confidence: 99%

“…The first realization of this architecture relies on Generic Routing Encapsulation (GRE) Tunnels [4], [6]. This solution can be summarized as follows.…”

Section: B Gre-based L3 Overlay Tunnelingmentioning

confidence: 99%

Section: B Gre-based L3 Overlay Tunnelingmentioning

confidence: 99%

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Increasing broadband reach withHybrid Access Networks

Keukeleire,

Hesmans,

Bonaventure

2019

Preprint

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“…This low TCP performance is due to the difference in delays over the two links that cause TCP reordering. Commercial solutions for hybrid access networks reorder the out-of-sequence packets by using either sequence numbers in the GRE tunnels [34] or Multipath TCP proxies [13] on the CPE and the aggregation box.…”

Section: Hybrid Access Networkmentioning

confidence: 99%

“…Instead of using sequence numbers as in [34], we mitigate reordering by delaying the link with the lowest latency. We extend our End.DM implementation to handle two-way delay (TWD) measurements and deploy it on the CPE.…”

Section: Hybrid Access Networkmentioning

confidence: 99%

Leveraging eBPF for programmable network functions with IPv6 segment routing

Xhonneux

Duchene

Bonaventure

2018

Proceedings of the 14th International Conference on Emerging Networking EXperiments and Technologies

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With the advent of Software Defined Networks (SDN), Network Function Virtualisation (NFV) or Service Function Chaining (SFC), operators expect networks to support flexible services beyond the mere forwarding of packets. The network programmability framework which is being developed within the IETF by leveraging IPv6 Segment Routing enables the realisation of in-network functions.In this paper, we demonstrate that this vision of in-network programmability can be realised. By leveraging the eBPF support in the Linux kernel, we implement a flexible framework that allows network operators to encode their own network functions as eBPF code that is automatically executed while processing specific packets. Our lab measurements indicate that the overhead of calling such eBPF functions remains acceptable. Thanks to eBPF, operators can implement a variety of network functions. We describe the architecture of our implementation in the Linux kernel. This extension has been released with Linux 4.18. We illustrate the flexibility of our approach with three different use cases: delay measurements, hybrid networks and network discovery. Our lab measurements also indicate that the performance penalty of running eBPF network functions on Linux routers does not incur a significant overhead.

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