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With the gradual popularity of location-based social network service, the localization technologies, for example the WLAN-based positioning technique, have become the premise of the service. Nevertheless, the positioning system is vulnerable to spoofing attack resulting in the user's identity divulged, due to the openness of the wireless network. The paper firstly implements a location cheating attack...
Due to the expensive hardware and complex management of the traditional middlebox, a concerted effort towards the virtualized middlebox has been launched in both academia and industry. In this paper, we propose a unified middlebox model, MBBrick, which is composed of three operation modules (classifier, rewriter, forwarder) and a control module (the mcontroller). We then design a language, MG, to...
Information-Centric Networking (ICN) is proposed to address the inefficiency of content delivery of IP networks from the perspective of architecture. In contrast, Content Delivery Network (CDN) is an overlay solution in current IP networks. We believe that even though ICN is fully deployed, there is still a role for CDNs to play in ICN networks. Since ISPs in ICN will replicate and forward contents...
BGP measurement is important for monitoring and understanding the Internet anomalies. Most of the previous works on BGP measurement rely on aggregated statistics from BGP monitors, e.g., total updates. However, BGP events may have quite limited visibility. Therefore, merely investigating aggregated data may lead to misunderstanding Internet instability, e.g., overestimating the impact of monitor-local...
The detection theories and methods of Hardware Trojan (HT) in ASIC have been mature with the vigorous development of integrated circuit (IC) security. However, the detection theories and methods of hardware Trojan in third party IP cores develop slowly when IP cores are used widely, thereby it results severe secure problems during use of IP cores. In this paper, we analyzed structure features of less-toggled...
Network protocol classification plays an important role in modern network security and fine-grained management architectures. The state-of-the-art network protocol classification methods aim to take the advantages of flow statistical features and machine learning techniques. However the classification performance is severely affected by limited supervised information and unknown network protocols...
Ternary Content Addressable Memory(TCAM)-based multidimensional tables are widely used to implement Access Control Lists (ACLs) for Internet packet classification and filtering, and have also become attractive for constructing the forwarding tables of Internet routers and the flow tables of Openflow switches, where multiple fields are generally used to match incoming packets. However, as such tables...
Information-Centric Networking (ICN) has been proposed recently to improve the efficiency of content delivery in current IP networks. ICN employs data names, instead of host addresses, as routing and forwarding indicators. Content in the ICN carries only signature of the content provider but does not contain the identity of the content consumer by default. Such information is, however, essential for...
In Software Defined Networks (SDN), the configuration inconsistency during updates is one main source of network instability. Even if the validity of the initial and final configurations is guaranteed, the interim complex and inconstant network states might cause routing conflicts and transmission disruption. Therefore, an efficient updating scheme of configuration consistency is required. Current...
Ultimately, only cloud-based approaches will provide effective weapons for solving the wide spectrum of new security challenges associated with running IPv6.
The demand for faster failure-recovery in the Internet has led to the development of several IP Fast Reroute (IPFRR) schemes, which are all too computationally expensive or unsatisfactory in protection coverage. In this paper, we propose Minimum Protection Cost Tree (MPCT) for IPFRR using Tunnel. By constructing an MPCT for each hypothetical failed neighbor, MPCT finds the protection paths for all...
In recent years, the core-net routing table, e.g., Forwarding Information Base (FIB), is growing at an alarming speed and this has become a major concern for Internet Service Providers. One effective solution for this routing scalability problem, which requires only upgrades on individual routers, is FIB aggregation. Intrinsically, IP prefixes with numerical prefix matching and the same next hop can...
Network survivability is an important topic for the Internet. To improve the performance of the Internet during failure, IP Fast Reroute (IPFRR) mechanisms are proposed to establish backup routes for failure-affected packets. NotVia, a most prominent one, provides 100% protection coverage for single-node failures. However, it brings in nontrivial computing and memory pressure to routers with special...
The demand for faster failure-recovery in pure intra-domain IP networks has led to the development of several IP Fast ReRoute (IPFRR) mechanisms. However, these mechanisms are all either too computationally expensive, or fail to provide satisfiable protection coverage. For these reasons, IPFRR schemes have yet to see widespread commercial deployment. In this paper, we present a new IPFRR mechanism...
To improve the quality of IP service, it is important to quickly and accurately diagnosis the root fault from the observed symptoms and knowledge. The approximate inference based on Bayesian networks is the most popular fault diagnosis technology in recent years. Presently, fault localization based on Bayesian networks is only according to the current information and does not consider the time information...
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