Network middleboxes must offer high availability, with automatic failover when a device fails.
Achieving high availability is challenging because failover must correctly restore lost state …

In enterprise networks, network functions, such as address translation, firewall, and deep
packet inspection, are often implemented in middleboxes. Those can suffer from temporary …

We study the virtual machine live migration (LM) and disaster recovery (DR) from a
networking perspective, considering long-distance networks, for example, between data …

Network traffic typically traverses a sequence of middleboxes forming a service function
chain, or simply a chain. Tolerating failures when they occur along chains is imperative to …

Abstract Dynamic Voltage and Frequency Scaling (DVFS), CPU pinning, horizontal, and
vertical scaling, are four techniques that have been proposed as actuators to control the …

The virtual machine abstraction provides a wide variety of benefits which have undeniably
enabled cloud computing. Virtual machines, however, are a double-edged sword as …

Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual
machines in data centers. Post-copy provides deterministic total migration time and low …

Modern datacenters rely on virtualization to deliver complex and scalable cloud services. To
avoid inflating costs or reducing the perceived service level, suitable resource optimization …

Our work addresses how a cloud provider can offer Network Functions (NF) as a Service, or
NFaaS, using the emerging serverless computing paradigm. Serverless computing has the …

Traditional network functions such as firewalls and Intrusion Detection Systems (IDS) are
implemented in costly dedicated hardware, making the networks expensive to manage and …