Multipath TCP is a TCP extension that enables hosts to send data belonging to a single TCP connection over different paths. It was designed as an incrementally deployable evolution of TCP. For this reason, the Multipath TCP specification assumes that ...

Recent work has applied Multipath TCP proxies to the problem of bonding a customer's multiple access interfaces to the Internet, in order to augment available bandwidth, especially in areas with marginal fixed connectivity. However, such proxies only ...

Multipath TCP has been recently introduced in order to allow a better resource consumption and user quality-of-experience. This is achieved by allowing a connection between two hosts through multiple subflows. However, with the rise of middleboxes and ...

Small companies and branch offices often have bandwidth demands and redundancy needs that go beyond the commercially available Internet access products in their price range. One way to overcome this problem is to bundle existing Internet access ...

Updating data plane state to adapt to dynamic conditions is a fundamental network control operation. Software-Defined Networking (SDN) offers abstractions for updating network state while preserving consistency properties. However, realizing these ...

In this paper we define the notion of composition for software-defined network applications and show the theoretical and practical approaches to composition in software-defined networks and explain the challenges associated with it. We explore the ...

The growing relevance of Internet eXchange Points (IXPs), where an increasing number of networks exchange routing information, poses fundamental questions regarding the privacy guarantees of confidential business information. To facilitate the exchange ...

We present a method to compute the customer cones of peering networks using PCH data. Our method computes location dependent customer cones (LDCCs) for networks that are present at more than one IXP instead of computing a single customer cone for each ...

The IETF has developed protocols that promote a healthy IPv4 and IPv6 co-existence. The Happy Eyeballs (HE) algorithm, for instance, prevents bad user experience in situations where IPv6 connectivity is broken. Using an active test (happy) that measures ...

Concerns have been raised in the past several years that introducing new transport protocols on the Internet has become increasingly difficult, not least because there is no agreed-upon way for a source end host to find out if a transport protocol is ...

When multiple TCP connections are used between the same host pair, they often share a common bottleneck -- especially when they are encapsulated together, e.g. in VPN scenarios. Then, all connections after the first should not have to guess the right ...

Ever growing demand for network bandwidth makes computer networks an area of constant development and fast adjustments. The steady change makes good performance assessments equally necessary and challenging. This development motivated us to revisit the ...

In today’s Internet we see an increasing deployment of middleboxes. While middleboxes provide in-network functionality that is necessary to keep networks manageable and economically viable, any packet mangling – whether essential for the needed ...

IPv6 activity is commonly reported as a fraction of network traffic per day. Within this traffic, however, are daily and weekly characteristics, driven by non-uniform IPv6 deployment across ISPs and regions. This paper discusses some of the more ...

The IP header should be the ideal part of a packet that an end system could use to ask the network for special treatment. Recently, there has been renewed interest in using bits of this header -- e.g. the ECN and the DSCP fields. But can we really use ...

The Internet is full of Middleboxes that change packets and flows. In fact, there is probably no IP o TCP header that is not affected by at least one middlebox. Obviously, middleboxes impede path transparency, i.e., the idea that an exchange of messages ...

Google congestion control (GCC) has been proposed for the case of delay sensitive traffic (i.e. video-conference) in the WebRTC framework. In this paper we analyze the effect of wireless channel outages on the GCC. We have observed that, when a channel ...

Real-time applications require a set of transport services not currently provided by widely-deployed transport protocols. Ossification prevents the deployment of novel protocols, restricting solutions to protocols using either TCP or UDP as a substrate. ...