While softwarization and virtualization technologies make modern communication networks appear easier to manage, they also introduce highly complex interactions within the networks that can cause unexpected security threats. In this work, we study a ...

The ''metaverse'', wherein users can immerse in virtual worlds through their VR headsets to work, study, play, shop, socialize, and entertain, is fast becoming a reality. However, little is known about the network dynamics of metaverse VR applications, ...

Network Calculus (NC) is a method for providing certification evidence in networked systems, ensuring proper functioning of time-critical traffic. Traditional NC analyses focus on feedforward networks that are networks without cyclic dependencies. ...

Internet service providers (ISPs) have a variety of quality attributes that determine their attractiveness for data transmission, ranging from quality-of-service metrics such as jitter to security properties such as the presence of DDoS defense systems. ...

We propose Argus, a system to enable millimeter-wave (mmWave) deployers to quickly complete site-surveys without sacrificing the accuracy and effectiveness of thorough network deployment surveys. Argus first models the mmWave reflection profile of an ...

Network management often relies on machine learning to make predictions about performance and security from network traffic. Often, the representation of the traffic is as important as the choice of the model. The features that the model relies on, and ...

Traffic classification is essential in network management for operations ranging from capacity planning, performance monitoring, volumetry, and resource provisioning, to anomaly detection and security. Recently, it has become increasingly challenging ...

Persistent spread measurement is to count the number of distinct elements that persist in each network flow for predefined time periods. It has many practical applications, including detecting long-term stealthy network activities in the background of ...

We propose high-frequency traffic control (HFTraC), a rate control scheme that coordinates the transmission rates and buffer utilizations in routers network-wide at fast timescale. HFTraC can effectively deal with traffic demand fluctuation by utilizing ...

Cellular networks are constantly evolving due to frequent changes in radio access and end user equipment technologies, applications, and traffic. Network upgrades should be performed with extreme caution since millions of users heavily depend on the ...

This article introduces a novel family of decentralised caching policies for wireless networks, referred to as spatial multi-LRU. Based on these, cache inventories are updated in a way that provides content diversity to users that are covered by, and ...

This paper describes TARDIS (Traffic Assignment and Retiming Dynamics with Inherent Stability) which is an algorithmic procedure designed to reallocate traffic within Internet Service Provider (ISP) networks. Recent work has investigated the idea of ...

We investigate the DHCP churn impact on network characterization by analyzing 18 months of DHCP, DNS, Firewall Alert, and Netflow data collected from an enterprise network of 30,000 clients. We find that DHCP churn has clear impact on network metrics.

With the growth in number and significance of the emerging applications that require extremely low latencies, network operators are facing increasing need to perform latency measurement on per-flow basis for network monitoring and troubleshooting. In ...

Saving power in datacenter networks has become a pressing issue. ElasticTree and CARPO fat-tree networks have recently been proposed to reduce power consumption by using sleep mode during the operation stage of the network. In this paper, we address the ...

We develop an approach to prove the interchange of limits in heavy traffic analysis of stochastic processing networks, using a moment condition on the primitive data, the interarrival and service times. The approach complements the one in [8], where a ...

Several major Internet service providers today also offer content distribution services. The emergence of such "network-CDNs" (NCDNs) is driven both by market forces as well as the cost of carrying ever-increasing volumes of traffic across their ...

During crowded events, cellular networks face voice and data traffic volumes that are often orders of magnitude higher than what they face during routine days. Despite the use of portable base stations for temporarily increasing communication capacity ...