We present an approach to detect network configuration errors, which combines the benefits of two prior approaches. Like prior techniques that analyze configuration files, our approach can find errors proactively, before the configuration is applied, and answer “what if” questions. Like prior techniques that analyze data-plane snapshots, our approach can check a broad range of forwarding proper...

Retrieving resources in a distributed environment is more difficult than finding data in centralised databases. In the last decade P2P system arise as new and effective distributed architectures for resource sharing, but searching in such environments could be difficult and time–consuming. In this paper we discuss efficiency of resource discovery in PROSA, a self–organising P2P system heavily i...

The Bloom filter (BF) is a space efficient randomized data structure particularly suitable to represent a set supporting approximate membership queries. BFs have been extensively used in many applications especially in networking due to their simplicity and flexibility. The performances of BFs mainly depends on query overhead, space requirements and false positives. The aim of this paper is to ...

Distributed Hash Tables (DHTs) may suffer from a high lookup latency due to the issue of topology mismatching between the overlay and the physical underlying network. To handle this problem, recently, some researchers use network coordinates (NCs) to construct topology-aware DHTs(e.g. Canary). However, these proposed DHTs still have room to be improved due to the inaccuracy of NCs. To construct...

We consider computational models motivated by processors which exhibit architectural asynchrony and allow operands to bypass the register bank using a forwarding mechanism. We analyse the interaction between asynchrony and forwarding, derive constraints on the usage of forwarding for various models of operation, and study consequences for compilers targeting such processors. Our approach to rea...

This paper considers the use of data prefetching and an alternative mechanism, data forwarding, for reducing memory latency caused by interprocessor communication in cache coherent, shared memory multiprocessors. Data prefetching is accomplished by using a multiprocessor software pipelined algorithm. Data forwarding is used to target interprocessor data communication, rather than synchronizatio...

This paper explains trajectory⁃based data forwarding schemes for multihop data delivery in vehicular networks where the trajectory is the GPS navigation path for driving in a road network. Nowadays, GPS⁃based navigation is popular with drivers either for efficient driv⁃ ing in unfamiliar road networks or for a better route, even in familiar road networks with heavy traffic. In this paper, we de...