COMM

Planned maintenance is a fact of life in IP networks. Examples of maintenance activities include updating router software as well as processor upgrades, memory upgrades, installation of additional line cards, and other hardware upgrades. While planned ...

Several Active Queue Management (AQM) based solutions have been proposed to enable service differentiation in the DiffServ Assured Forwarding (AF) class(es). Most of these solutions, however, provide throughput guarantees only. This paper proposes a new ...

Due to the lack of a general theoretical foundation, today's distributed traffic control mechanisms developed at the networking layer, transport layer, and overlay are largely disintegrated. As a result, traffic control protocols developed at different ...

The rapid advances in hardware, software, and networks have made the management of enterprise network systems an increasingly challenging task. Due to the tight coupling between hardware, software, and data, every one of the hundreds or thousands of PCs ...

Increased use of demanding network applications, as well as the increase of unwanted network traffic in the form of DDoS attacks, are putting new pressures on service providers to meet the expectations of customers in terms of network availability and ...

No single administration controls the entire Internet. Instead, competing providers work together to enforce of a wide variety of network management policies, including policies that limit the flow of management information itself. In many cases these ...

Network management is difficult, costly, and error prone, and this is becoming more so as network complexity increases. We argue that this is an outcome of two fundamental flaws in the existing architecture: the management plane depends on the data ...

IP networks nowadays perform many functions in addition to best-effort datagram forwarding. These functions are typically achieved via an ad hoc combination of distributed protocols, database- and tool-driven router configurations, and manual ...

Using active Techniques to measure networks, that is by injecting probe packets, has proved to be quite challenging for properties beyond simple end-to-end delay and loss. Some of the greatest difficulties have resulted from our inability to design ...

The growth of one-to-many applications in enterprise networks is fueling the demand for VPNs to support multicast applications. The deployment of such a Multicast VPN service creates the need for appropriate management tools and techniques including ...

We present A-GAP, a novel protocol for continuous monitoring of network state variables, which aims at achieving a given monitoring accuracy with minimal overhead. Network state variables are computed from device counters using aggregation functions, ...

Efficiently operating and managing large scale distributed and federated systems is an extremely challenging problem. Current solutions are a combination of centralized management and significant over-provisioning of the infrastructure. With the ...

Unexpected temporal and spatial changes of inter-AS routing behavior often lead to the necessity of on-demand inter-domain routingadjustment. For resolving this problem, we apply the AISLE framework, which is a multi-agent-based model, to a policy-based ...

One of the critical aspects of network management that has not received much attention is network upgrade. This paper addresses the question of "how to add new nodes and links into an operational network in a graceful manner so that the perceived ...

Autonomic Network Management (ANM) has the goal of increasing reliability and performance while reducing management cost using various automated techniques. These range from agent-based approaches relying on explicit models and ontologies to emergent ...